18CSMP68 Lab Manual

MOBILE APPLICATION DEVELOPMENT
(Effective from the academic year 2018 -2019)

SEMESTER – VI
Course Code 18CSMP68 IA Marks 40
Number of Contact Hours/Week 0:0:2 Exam Marks 60
Total Number of Contact Hours 3 Hours/Week Exam Hours 03
CREDITS – 02
Laboratory Objectives:Thislaboratory (18CSMP68) will enable students to
 Learn and acquire the art of Android Programming.
 ConfigureAndroid studio to run the applications.
 Understand and implement Android's User interface functions.
 Create, modify and query on SQlite database.
 Inspect different methods of sharing data using services.
Descriptions (if any):
Installation procedure of the Android Studio/Java software must be demonstrated, carried out in
groups.
Students should use the latest version of Android Studio/Java to execute these programs.
All of these diagrams are for representational purpose only.Students are expected to improvise on it.
Programs List:
PART – A
1 Create an application to design aVisiting Card. The Visiting card should havea companylogoatthe
top right corner. The company name should be displayed in Capital letters, aligned to the center.
Information like the name of the employee, job title, phone number, address, email, fax and the
website address isto be displayed. Insert a horizontal line between the job title and the phone
number.
2 Develop an Android application usingcontrols like Button, TextView, EditText for designing a
calculatorhaving basic functionality like Addition, Subtraction, Multiplication,andDivision.
3 Create a SIGN Up activity with Username and Password. Validation of password should happen
based on the following rules:
 Password should contain uppercase and lowercase letters.

 Password should contain letters and numbers.
 Password should contain special characters.
 Minimum length of the password (the default value is 8).
On successful SIGN UP proceed to the next Login activity. Here the user should SIGN IN using
the Username and Password created during signup activity. If the Username and Password are
matched then navigate to the next activity whichdisplays a message saying “Successful Login” or
else display a toast message saying “Login Failed”.The user is given only two attempts and after
thatdisplay a toast message saying “Failed Login Attempts” and disable the SIGN IN button. Use
Bundle to transfer information from one activity to another.
4 Develop an application to set an image as wallpaper. On click of a button, the wallpaper image
should start to change randomly every 30 seconds.
5 Write a program to create an activity with two buttons START and STOP. On
pressingoftheSTART button, the activity must start the counter by displaying the numbers from
One and the counter must keep on counting until the STOP button is pressed. Display the counter
value in a TextViewcontrol.
6 Create two files of XML and JSON type with values for City_Name, Latitude, Longitude,
Temperature,andHumidity. Develop an application to create an activity with two buttons to parse
the XML and JSON files which when clicked should display the data in their respective layouts
side by side.
7 Develop a simple application withoneEditTextso that the user can write some text in it. Create a
button called “Convert Text to Speech” that converts the user input text into voice.
8 Create an activity like a phone dialer withCALLand SAVE buttons. On pressing the CALL
button, it must call the phone number and on pressing the SAVE button it must save the number
to the phone contacts.
PART - B
1 Write a program to enter Medicine Name, Date and Time of the Day as input from the user and
store it in the SQLite database. Input for Time of the Day should be either Morning or Afternoon
or Eveningor Night. Trigger an alarm based on the Date and Time of the Day and display the
Medicine Name.
2 Develop a content provider application with an activity called “Meeting Schedule” which takes
Date, Time and Meeting Agenda as input from the user and store this information into the SQLite
database. Create another application with an activity called “Meeting Info” having DatePicker
control, which on the selection of a date should display the Meeting Agenda information for that
particular date, else it should display a toast message saying “No Meeting on this Date”.
3 Create an application to receive an incoming SMS which is notified to the user. On clicking this
SMS notification, the message content and the number should be displayed on the screen. Use
appropriate emulator control to send the SMS message to your application.
4 Write a program to create an activity having a Text box, and also Save, Open and Create buttons.
The user has to write some text in the Text box. On pressing the Create button the text should be
saved as a text file in MkSDcard. On subsequent changes to the text, the Save button should be
pressed to store the latest content to the same file. On pressing the Open button, it should display
the contents from the previously stored files in the Text box. If the user tries to save the contents
in the Textbox to a file without creating it, then a toast message has to be displayed saying “First
Create a File”.
5 Create an application to demonstrate a basic media playerthat allows the user to Forward,
Backward, Play and Pause an audio. Also, make use of the indicator in the seek bar to move the
audio forward or backward as required.
6 Develop an application to demonstrate the use of Asynchronous tasks in android. The

asynchronous task should implement the functionality of a simple moving banner. On pressing the
Start Task button, the banner message should scrollfrom right to left. On pressing the Stop Task
button, the banner message should stop.Let the banner message be “Demonstration of
Asynchronous Task”.
7 Develop an application that makes use of the clipboard framework for copying and pasting of the
text. The activity consists of two EditText controls and two Buttons to trigger the copy and paste
functionality.
8 Create an AIDL service that calculates Car Loan EMI. The formula to calculate EMI is
E = P * (r(1+r)n)/((1+r)n-1)
where
E = The EMI payable on the car loan amount
P = The Car loan Principal Amount
r = The interest rate value computed on a monthly basis
n = The loan tenure in the form of months
The down payment amount has to be deducted from the principal amount paid towards buying the
Car. Develop an application that makes use of this AIDL service to calculate the EMI. This
application should have four EditText to read the PrincipalAmount, Down Payment, Interest Rate,
Loan Term (in months) and a button named as “Calculate Monthly EMI”. On click of this button,
the result should be shown in a TextView. Also, calculate the EMI by varying the Loan Term and
Interest Rate values.
Laboratory Outcomes:After studying theselaboratory programs, students will be able to
 Create, test and debug Android application by setting up Android development environment.
 Implement adaptive, responsive user interfaces that work across a wide range of devices.
 Infer long running tasks and background work in Android applications.
 Demonstrate methods in storing, sharing and retrieving data in Android applications.
 Infer the role of permissions and security for Android applications.
Procedure to Conduct Practical Examination
 Experiment distribution
o For laboratories having only one part: Students are allowed to pick oneexperiment from the lot
with equal opportunity.
o For laboratories having PART A and PART B: Students are allowed to pick oneexperiment
from PART A and one experiment from PART B, with equalopportunity.
 Change of experiment is allowed only once and marks allotted for procedure to be made
zero of the changed part only.
 Marks Distribution (Courseed to change in accordance with university regulations)

o For laboratories having only one part – Procedure + Execution + Viva-Voce: 15+70+15= 100
Marks
o For laboratories having PART A and PART B
i. Part A – Procedure + Execution + Viva = 6 + 28 + 6 = 40 Marks
ii. Part B – Procedure + Execution + Viva = 9 + 42 + 9 = 60 Marks
Text Books:
1. Google Developer Training, "Android Developer Fundamentals Course – Concept
Reference”, Google Developer Training Team, 2017.
https://www.gitbook.com/book/google-developer-training/android-developer-fundamentals-
course-concepts/details
(Download pdf file from the above link)
Reference Books:
1. Erik Hellman, “Android Programming – Pushing the Limits”, 1st Edition, Wiley India Pvt Ltd,
2014. ISBN-13: 978-8126547197
2. Dawn Griffiths and David Griffiths, “Head First Android Development”, 1st Edition, O’Reilly
SPD Publishers, 2015. ISBN-13: 978-9352131341
3. Bill Phillips, Chris Stewart and Kristin Marsicano, “Android Programming: The Big Nerd
Ranch Guide”, 3rd Edition, Big Nerd Ranch Guides, 2017. ISBN-13: 978-0134706054
GLOBAL ACADEMY OF TECHNOLOGY
Department of Computer Science & Engineering
Affiliated to VTU, Accredited by NAAC with 'A' grade
RR Nagar, Bengaluru – 560 098
(Accredited by NBA 2019-2022)

LABORATORY MANUAL MASTER COPY
VI Semester
CourseCode:18CSMP68
[As per the Choice Based Credit System Scheme]

Scheme:2018
Version1.1
w.e.f 19th April, 2021
Editorial Committee
MAD Lab Faculty, Dept. of CSE
Approved by
Dr. BHAGYASHREE R HANJI , H.O.D, In Charge
Document Log
Name of the document Mobile Application Development Laboratory
Syllabus Scheme 2018-2019
Current version number and date V1 / 25.03.2021
Subject code 18CSMP68
Editorial Committee Prof. Shyam Sundar Bhushan
Prof. Priyanka G
Prof. Tanushree K N
Computer Programmer Mr. Parashivamurthy C
Approved by HOD, Dept. of CSE

Table of Content
Sl. Particulars Page No.

No.
1 Vision and Mission of Department 1
2 PEOs, PSOs, POs 2-3
3  CourseOutcomes
 Syllabus
 Conduction of PracticalExamination 4 -12
 CO-PO-PSOMapping
4 Lab Evaluation Process 13
5 Lab Rubrics 14-16
6 Lab Evaluation Sheet 17-18
7 CHAPTER1 INTRODUCTION
ANDROID STUDIO TUTORIALS 19-36
CHAPTER 2
PART-A
Create an application to design a Visiting Card. The Visiting card
should have a company logo at the top right corner. The company name
should be displayed in Capital letters, aligned to the center. Information
like the name of the employee, job title, phone number, address, email,
37-40
Experiment 1
fax and the website address is to be displayed. Insert a horizontal line
between the job title and the phone number.
Develop an Android application using controls like Button, TextView,
EditText for designing a Calculator having basic functionality like 41-51
Experiment 2
Addition, Subtraction, Multiplication, and Division.
Create a SIGN Up activity with Username and Password. Validation of
password should happen based on the following rules:
8 • Password should contain uppercase and lowercase letters.
• Password should contain letters and numbers. 52-59
Experiment 3
• Password should contain special characters.
• Minimum length of the password (the default value is 8).
Develop an application to set an image as wallpaper. On click of a
button, the wallpaper image should start to change randomly every 30 60-64
Experiment 4 seconds.
Write a program to create an activity with two buttons START and
STOP. On Pressing of the START button, the activity must start the
counter by displaying the numbers from One and the counter must keep 65-69
Experiment 5 on counting until the STOP button is pressed. Display the counter value
in a TextView control.
Create two files of XML and JSON type with values for City_Name,
Latitude, Longitude, Temperature, and Humidity. Develop an
application to create an activity with two buttons to parse the XML and 70-76
Experiment 6
JSON files which when clicked should display the data in their
respective layouts side by side.
Develop a simple application with one Edit Text so that the user can
Experiment 7 write some text in it. Create a button called “Convert Text to Speech” 77-80
that converts the user input text into voice
Create an activity like a phone dialer with CALL and SAVE buttons.
On pressing the CALL button, it must call the phone number and on
pressing the SAVE button it must save the number to the phone 81-90
Experiment 8
contacts.
9 CHAPTER4 ADDITIONAL EXPERIMENTS 91-105
10 CHAPTER5 VIVA QUESTIONS 102-104
Vision of the Institute
Becomeapremierinstitutionimpartingqualityeducationinengineeringandmanagementtomeet
the changing needs ofsociety
Mission of the Institute
 Create environment conducive for continuous learning through quality teaching and
learning processes supported by moderninfrastructure
 Promote Research and Innovation through collaboration withindustries
 Inculcate ethical values and environmental consciousness through holistic education
programs
Dept. of CSE, GAT1MOBILE APPLICATION DEVELOPMENT LAB-18CSMP68

Program Educational Objectives (PEOs)
After the course completion, CSE graduates will be able to:

PEO1: Succeed in engineering/management positions with professional ethics.
PEO2: Engage in improving professional knowledge through certificate/post- graduate programs

in engineering or management.
PEO3: Establish themselves as entrepreneurs and contribute to the Society.
Program Specific Outcomes (PSOs)

PSO1: Design, implement and test System Software and Application Software to meet the
desired needs.
PSO2: Develop solutions in the area of Communication Networks, Database Systems and
Computing Systems.

Program Outcomes (POs)
Engineering Graduates will be able to:
1. Engineering knowledge: Apply the knowledge of mathematics, science, engineering fundamentals,

and an engineering specialization to the solution of complex engineeringproblems.
2. Problem analysis: Identify, formulate, review research literature, and analyze complex engineering
problems reaching substantiated conclusions using first principles of mathematics, natural sciences,
and engineeringsciences.
3. Design/development of solutions: Design solutions for complex engineering problems and design
system components or processes that meet the specified needs with appropriate consideration for the
public health and safety, and the cultural, societal, and environmentalconsiderations.
4. Conduct investigations of complex problems: Use research-based knowledge and research methods
including design of experiments, analysis and interpretation of data, and synthesis of the information
to provide validconclusions.
5. Modern tool usage: Create, select, and apply appropriate techniques, resources, and modern
engineering and IT tools including prediction and modeling to complex engineering activities with an
understanding of thelimitations.
6. The engineer and society: Apply reasoning informed by the contextual knowledge to assess societal,
health, safety, legal and cultural issues and the consequent responsibilities relevant to the professional
engineeringpractice.
7. Environment and sustainability: Understand the impact of the professional engineering solutions in
societal and environmental contexts, and demonstrate the knowledge of, and need for sustainable
development.
8. Ethics: Apply ethical principles and commit to professional ethics and responsibilities and norms of
the engineering practice.
9. Individualandteamwork:Functioneffectivelyasanindividual,andasamemberorleaderindiverse teams,
and in multidisciplinarysettings.
10. Communication: Communicate effectively on complex engineering activities with the engineering
communityandwithsocietyatlarge,suchas,beingabletocomprehendandwriteeffectivereportsand design
documentation, make effective presentations, and give and receive clearinstructions.
11. Projectmanagementandfinance:Demonstrateknowledgeandunderstandingoftheengineeringand
management principles and apply these to one’s own work, as a member and leader in a team, to
manage projects and in multidisciplinaryenvironments.
12. Life-longlearning:Recognizetheneedfor,andhavethepreparationandabilitytoengagein
independent and life-long learning in the broadest context of technologicalchange.

Course Details
CourseName:Mobile Application Development

CourseCode:18CSMP68
Course Prerequisite: Core Java
Course Objectives
Upon completion of this course, students are expected to:
1. Learn and acquire the art of AndroidProgramming.

2. Configure Android studio to run theapplications.
3. Understand and implement Android's User interfacefunctions.
4. Create, modify and query on SQLitedatabase.
5. Inspect different methods of sharing data usingservices.
Course Outcomes
After successful completion of the Course, the participants will be able to
Create, test and debug Android application by setting up Android development

18CSMP68.1
environment.
Implement adaptive, responsive user interfaces that work across a wide range
18CSMP68.2
of devices.
Demonstrate methods in storing, sharing and retrieving data in Android
18CSMP68.3
applications.
18CSMP68.4 Infer the role of permissions and security for Android applications.

SYLLABUS
SubjectCode:18CSMP68 IA Marks:40
No. of Practical Hrs. /Week:0:0:2 Exam Marks: 60
Total No. of Practical Hrs:3Hours/Week Exam Hours: 03
No. of Credits:02
Descriptions (if any):
1. TheinstallationprocedureoftheAndroidStudio/Javasoftwaremustbedemonstratedand
carried out ingroups.
2. Students should use the latest version of Android Studio/Java/ Kotlin to execute these
programs.Diagramsgivenareforrepresentationalpurposesonly,studentsareexpectedto
improvise on them.
3. Part B programs should be developed as an application and are to be demonstrated as a
mini project in a group by adding extra features or the students can also develop their
application and demonstrate it as a mini-project. (Projects/programs are not limited to the
list given in PartB).
PART A
Program 1
Create an application to design a Visiting Card. The Visiting card should have a company logo at
the top right corner. The company name should be displayed in Capital letters, aligned to the
center. Information like the name of the employee, job title, phone number, address, email, fax
and the website address is to be displayed. Insert a horizontal line between the job title and the
phone number.

Program 2
Develop an Android application using controls like Button, TextView, EditText for designing a
Calculator having basic functionality like Addition, Subtraction, Multiplication, and Division.
Program 3
Create a SIGN Up activity with Username and Password. Validation of password should happen
based on the following rules:
 Password should contain uppercase and lowercaseletters.

 Password should contain letters andnumbers.
 Password should contain specialcharacters.
 Minimum length of the password (the default value is8).
On successful SIGN UP proceed to the next Login activity. Here the user should SIGN IN using
the Username and Password created during signup activity. If the Username and Password are
matched then navigate to the next activity which displays a message saying “Successful Login”
or else display a toast message saying “Login Failed”. The user is given only two attempts and
afterthatdisplayatoastmessagesaying“FailedLoginAttempts”anddisabletheSIGNINbutton. Use
Bundle to transfer information from one activity toanother.

Program 4
Develop an application to set an image as wallpaper. On click of a button, the wallpaperimage
should start to change randomly every 30seconds.
Program 5
Write a program to create an activity with two buttons START and STOP. On Pressing of the
START button, the activity must start the counter by displaying the numbers from One and the
counter must keep on counting until the STOP button is pressed. Display the counter value in a
TextView control.
Program 6
Create two files of XML and JSON type with values for City_Name, Latitude, Longitude,
Temperature,andHumidity.Developanapplicationtocreateanactivitywithtwobuttonstoparse the
XML and JSON files which when clicked should display the data in their respective layouts side
by side.
Dept. of CSE, GAT 7MOBILE APPLICATION DEVELOPMENT LAB18CSMP68

Program 7
Develop a simple application with one Edit Text so that the user can write some text in it. Create
a button called “Convert Text to Speech” that converts the user input text into voice.
Program 8
Create an activity like a phone dialer with CALL and SAVE buttons. On pressing the CALL
button, it must call the phone number and on pressing the SAVE button it must save the number
to the phone contacts.

PART B
Program 1
Write a program to enter Medicine Name, Date and Time of the Day as input from the user and
or Evening or Night. Trigger an alarm based on the Date and Time of the Day and display the
Medicine Name.
Program 2
Develop a content provider application with an activity called “Meeting Schedule” which takes
Date,TimeandMeetingAgendaasinputfromtheuserandstorethisinformationintotheSQLite
database. Create another application with an activity called “Meeting Info” having DatePicker
control, which on the selection of a date should display the Meeting Agenda information for that
particular date, else it should display a toast message saying “No Meeting on thisDate”.
Program 3
Create an application to receive an incoming SMS which is notified to the user. On clicking this
SMS notification, the message content and the number should be displayed on the screen. Use
appropriate emulator control to send the SMS message to your application.

Program 4
Write a program to create an activity having a Text box, and also Save, Open and Create buttons.
The user has to write some text in the Text box. On pressing the Create button the text should be
saved as a text file in MkSDcard. On subsequent changes to the text, the Save button should be
pressed to store the latest content to the same file. On pressing the Open button, it should display
the contents from the previously stored files in the Text box. If the user tries to save the contents
in the Textbox to a file without creating it, then a toast message has to be displayed saying
“FirstCreate a File”.
Program 5
Create an application to demonstrate a basic media player that allows the user to Forward,
Backward, Play and Pause an audio. Also, make use of the indicator in the seek bar to move the
audio forward or backward as required.
Program 6
Develop an application to demonstrate the use of Asynchronous tasks in android. The
asynchronoustaskshouldimplementthefunctionalityofasimplemovingbanner.Onpressingthe
StartTaskbutton,thebannermessageshouldscrollfromrighttoleft.OnpressingtheStopTask button,
the banner message should stop. Let the banner message be “Demonstration of
AsynchronousTask”.

Program 7
Develop an application that makes use of the clipboard framework for copying and pasting ofthe
text. The activity consists of two EditText controls and two Buttons to trigger the copy and paste
functionality.
Program 8
Create an AIDL service that calculates Car Loan EMI. The formula to calculate EMI is
E = P * (r(1+r)n)/((1+r)n-1)
where
Thedownpaymentamounthastobedeductedfromtheprincipalamountpaidtowardsbuyingthe Car.
Develop an application that makes use of this AIDL service to calculate the EMI. This
applicationshouldhavefourEditTexttoreadthePrincipalAmount,DownPayment,InterestRate, Loan
Term (in months) and a button named as “Calculate Monthly EMI”.On click of this button,
theresultshouldbeshowninaTextView.Also,calculatetheEMIbyvaryingtheLoanTermand Interest
Ratevalues.

CO-PO Mapping
CO No. PO1 PO2 PO3 PO4 PO5 PO6 PO7 PO8 PO9 PO10 PO11 PO12
18CSMP68.1 3 2 2 - 2 1 - - 1 1 - 1
18CSMP68.2 3 2 2 - 2 1 - - 1 1 - 1
18CSMP68.3 3 2 2 - 2 1 - - 1 1 - 1
18CSMP68.4 3 2 2 - - - - 2 1 1 - 1
18CSMP68 3 2 2 - 2 1 - 2 1 1 - 1

LAB EVALUATION PROCESS
WEEK WISE EVALUATION OF EACH PROGRAM
ACTIVITY MARKS
Manual 19
Viva 05
TOTAL 24
INTERNAL ASSESSMENT EVALUATION

(End of Semester)
SI. No ACTIVITY MARKS

01 Write-up 15
02 Conduction 70
03 Viva Voce 15
Total 100
FINAL INTERNAL ASSESSMENT CALCULATION
Sl.No ACTIVITY MARKS

01 Average of weekly 24
Entries
02 Internal Assessment 16
TOTAL 40

Lab Rubrics
Rubrics for Evaluation of Observation Book
Attribute NOT
EXCELLENT GOOD SATISFACTORY
SATISFACTORY
Max 3 2 1 0
Marks
Write-Up 3 1.Written 1.Written 1.Written Program 1.Written Incomplete
complete Program with few with logical and Program
logical errors. syntax errors. 2.Input and expected
program
2.Written input 2.Written input and output is not written
without any and expected expected output for
errors output for few test one test case.
2.Written input cases. 3. Written program
and expected 3.Written with moderate
output for all program with indentation
the test cases. moderate
indentation
3.Written
program with
proper
indentation
Max 9-10 5-8 3-4 0-2
Marks
Execution 10 1.Execution of 1. Execution of 1.Execution of No Execution
code with
code with code with
excellent
debugging skill.
good average
debugging debugging skill.
2.Got desired skill.
output for all 2.Got desired
required test 2. Got desired output for only
case output for few one test case
test cases
Max 3 2 1 0
Marks
Viva Voce 3 1. Exhibits 1. Exhibits good 1.Able to exhibits 1.Unable to explain
strong hold on hold on basic of average concepts.
basic of Data Data Structure knowledge on 2. Unable to explain
Structure concepts basic of Data the program.
concepts 2. Able to Structure concepts 3. Unable to
2. Able to demonstrate 2. Able to communicate ideas.
demonstrate given program demonstrate given
given program 3. Presents only program partially
3. Presents all a few concepts 3. Lack of
concepts clearly clearly confidence to
answer the
questions

Rubrics for Evaluation of Record
Book
EXCELLENT GOOD NOT SATISFACTORY

Attribute
Max 4 2-3 1
Marks
1. Written complete 1.Written 1.Written Incomplete
Write-Up 4 program without any Program with few Program
logical errors. 2.Input and expected
errors
2.Written input output is not written
2.Written input and and expected
expected output for all output for few the
the test cases. test cases.
3.Written program with 3.Written
program with
proper indentation
moderate
indentation
Max 2 1 0
Marks
Results 2 Written desired output Written desired Not able to write
for all required test output for few output
cases test cases
Max 2 1 0
Marks
Time 2 Written Complete Written Not submitted
Management program with desired Complete
output and submitted on program with
time desired output
and submitted by
taking extra time

Rubrics for Evaluation of Internal Test
Attribute NOT
EXCELLENT GOOD SATISFACTORY
SATISFACTORY
Max 13-15 8-12 5-7 0-4
Marks
Write-Up 15 1. Written 1.Written 1.Written Program 1.Written
complete program Program with with logical and Incomplete
few logical syntax errors. Program
without any errors
errors. 2.Written input and 2.Input and
2.Written input 2.Written input expected output for expected output is
and expected and expected one test case not written
output for all the output for few 3.Written program
test cases. test cases. with reasonable
3.Written indentation
3.Written program program with
with proper moderate
indentation indentation
Max 61-70 36-60 21-35 0-20

Marks
Execution 70 1.Execution of 1. Execution 1.Execution of No Execution
code with of code with code with
excellent good average
debugging skill. debugging debugging skill.
2.Got desired skill. 2.Got desired
output for all 2. Got desired output for only
required test cases output for few one test case
test cases
Max 13-15 8-12 5-7 0-4

Marks
Viva Voce 15 1. Exhibits strong 1. Exhibits good 1.Able to exhibits 1.Unable to
hold on basic of hold on basic of average explain concepts.
Data Structure Data Structure knowledge on 2.Unable to
concepts concepts basic of Data explain the
2. Able to 2. Able to Structure concepts program.
demonstrate given demonstrate 2. Able to 3.Unable to
program given program demonstrate given communicate
3. Presents all 3. Presents all program partially ideas.
concepts clearly concepts clearly 3. Lack of
confidence to
answer the
questions

Evaluation Sheet
Marks
O R
S. Page W+C+V W+R+T Total
No Date Particulars No. (Max. (Max. (Max Signature
16) 8M) 24M)
10
11
12
13
14
15
16
Average (Max. 24) (A)
Internal Assessment Marks (Max. 16) (B)

Scheme: As per VTU guidelines
Total Marks (A + B)
Note:- W: Write-up C :Conduction V :Viva Voce O:Observation R :Record

Procedure to Conduct Practical Examination
 Experiment distribution
 For laboratories having only one part: Students are allowed to pick one experiment from
the lot with equal opportunity.
 ForlaboratorieshavingPARTAandPARTB:Studentsareallowedtopickoneexperiment
from PART A and one experiment from PART B, with equalopportunity.
 Change of experiment is allowed only once and marks allotted for procedure to be
made zero of the changed part only.
 Marks Distribution (Courseed to change in accordance with university regulations)
 For laboratories having only one part–

Procedure + Execution + Viva-Voce: 15+70+15= 100 Marks
 For laboratories having PART A and PARTB
i) Part A – Procedure + Execution + Viva = 6 + 28 + 6 = 40Marks
ii) Part B – Procedure + Execution + Viva = 9 + 42 + 9 = 60Marks

CHAPTER 1
INTRODUCTION TO MOBILE APPLICATION DEVELOPMENT
Every day the new devices are incoming to the market with innovative options thanks to
growing technology. The evolution of Mobile Application Development technology with new
devices made our lives much easier.
In the smartphone world, simply having a running web site is not enough. Regarding a
recent study, it has shown that about 45% and more of Google search happens using smartphones.
The number is spectacular and there is a growth within the mobile business. Being
obtainable on an internet-enabled device is needed for every and each business which has given
the kicking start to mobile application development.
What is Mobile Development?

Mobile development, which is not about building phone apps, though it is a huge part of
it. Actually, it’s doing any reasonably development for any kind of mobile devices such as
developing apps for phones, tablets, smartwatches, and every form of wearable devices that run
any kind of mobile operating system.
Mobile development presents a reasonably distinctive chance for a one-person

development team to build an actual, usable, significant app end-to-end during a comparatively
short period. However, Mobile Apps Development represents more than just a chance for the
solo-developer to create their own project as it is arguably the longer term of development, as
mobile devices are getting larger and bigger parts of our lives.
Android is the dominant player in mobile development platforms space, it was a bit later
participant to the game, first being released in Sept 2008, virtually a year later than iOS but it has
managed to achieve a reasonably massive share of the mobile market.
Technically, Android is the mobile OS with the largest most dominant share of the
market with around 80% share compared to iOS’s 18 % share. Those numbers are a bit deceiving
since android may be a fragmented market consisting of the many different devices created by
different manufacturers, running completely different versions of the Android OS.

Types of Applications
1. Native Applications:
These are applications developed to be used on a particular platform or operating system such as
Android, iOS etc. Native apps are usually written in languages that the platform accepts. They are
also built using the specific Integrated Development Environment (IDE) for the given operating
systems, such as Android Studio for Android Apps and XCode for iOS Apps.
The principal advantage of native apps is that they optimize the user experience. By being
designed and developed specifically for that platform, they look and perform better.
Examples of some popular Native Applications are Instagram for Android, VLC media player for
Android, WordPress for iOS, and 2048 game for iOS,
2. Hybrid Applications:
These are applications developed to be used across multiple platforms i.e can be deployed on both
iOS and Android platforms. Hybrid mobile applications are built in a similar manner as websites.
Both use a combination of technologies like HTML, CSS, and JavaScript. However, instead of
targeting a mobile browser, hybrid applications target a WebView hosted inside a native container.
This enables them to do things like access hardware capabilities of the mobile device.
Today, most hybrid mobile applications leverage Apache Cordova, a platform that provides a
consistent set of JavaScript APIs to access device capabilities through plug-ins, which are built
with native code.
Examples of some popular Hybrid Applications are MarketWatch, Untappd, FanReact, and
TripCase.
3. Progressive Web Applications (PWAs):

A Progressive Web App (PWA) is a web app that uses modern web capabilities to deliver an app-
like experience to users without requiring them to install an app from the AppStore/PlayStore.
They are usually accessible by a web URL which can always be pinned or saved on your phone’s
home screen. PWAs are usually built using HTML, CSS, JavaScript also.
Examples of some popular Progressive Web Applications are AliExpress’s PWA, Financial Times
PWA, NASA’s PWA, and the recently just launched PayStack’s PWA.

Architecture
Android operating system is a stack of software components which is roughly divided into five
sections and four main layers as shown below in the architecture diagram.
Linux kernel
At the bottom of the layers is Linux - Linux 3.6 with approximately 115 patches. This provides a
level of abstraction between the device hardware and it contains all the essential hardware drivers
like camera, keypad, display etc. Also, the kernel handles all the things that Linux is really good
at such as networking and a vast array of device drivers, which take the pain out of interfacing to
peripheral hardware.
Libraries
On top of Linux kernel there is a set of libraries including open-source Web browser engine
WebKit, well known library libc, SQLite database which is a useful repository for storage and
sharing of application data, libraries to play and record audio and video, SSL libraries responsible
for Internet security etc.
Android Libraries
This category encompasses those Java-based libraries that are specific to Android development.
Examples of libraries in this category include the application framework libraries in addition to
those that facilitate user interface building, graphics drawing and database access. A summary of
some key core Android libraries available to the Android developer is as follows −
 android.app − Provides access to the application model and is the cornerstone of all Android
applications.
 android.content − Facilitates content access, publishing and messaging between applications
and application components.
 android.database − Used to access data published by content providers and includes SQLite
database management classes.
 android.opengl − A Java interface to the OpenGL ES 3D graphics rendering API.
 android.os − Provides applications with access to standard operating system services including
messages, system services and inter-process communication.
 android.text − Used to render and manipulate text on a device display.
 android.view − The fundamental building blocks of application user interfaces.
 android.widget − A rich collection of pre-built user interface components such as buttons,
labels, list views, layout managers, radio buttons etc.
 android.webkit − A set of classes intended to allow web-browsing capabilities to be built into
applications.
Having covered the Java-based core libraries in the Android runtime, it is now time to turn our
attention to the C/C++ based libraries contained in this layer of the Android software stack.
Android Runtime
This is the third section of the architecture and available on the second layer from the bottom.
This section provides a key component called Dalvik Virtual Machine which is a kind of Java
Virtual Machine specially designed and optimized for Android.
The Dalvik VM makes use of Linux core features like memory management and multi-threading,
which is intrinsic in the Java language. The Dalvik VM enables every Android application to run
in its own process, with its own instance of the Dalvik virtual machine.
The Android runtime also provides a set of core libraries which enable Android application
developers to write Android applications using standard Java programming language.
Application Framework
The Application Framework layer provides many higher-level services to applications in the
form of Java classes. Application developers are allowed to make use of these services in their
applications.
The Android framework includes the following key services −
 Activity Manager − Controls all aspects of the application lifecycle and activity stack.
 Content Providers − Allows applications to publish and share data with other applications.
 Resource Manager − Provides access to non-code embedded resources such as strings, color
settings and user interface layouts.
 Notifications Manager − Allows applications to display alerts and notifications to the user.
 View System − An extensible set of views used to create application user interfaces.
Applications
You will find all the Android application at the top layer. You will write your application to be
installed on this layer only. Examples of such applications are Contacts Books, Browser, Games
etc.

1. Android StudioTutorials
Install Android Studio andPackages:
Download Android Version 4.0.2 from the below link

https://redirector.gvt1.com/edgedl/android/studio/install/4.0.2.0/android-studio-
ide-193.6821437-windows.exe
Configure Android SDKpackages:
Go to Tools SDK Manager

CreatingEmulator
GotoToolsSelectAVDManager

Select CreateVirtual DeviceSelect PhonePixel 2 PressNext
Select Android Q, if not already downloaded press download, After download completes Select
Q and Press Next Button.

Enter AVD Name and PressFinish.
Press Play Button to StartEmulator

Creating a New Project inAndroid
While creating a New Project for First Time, make sure Android Studio is connected to internet,
It downloads the required packages from internet.
Go to FileNewNewProject
Choose Phone and Tablet Empty Activity Press Next

In Configure your Project Screen, Enter below details and Press Finish Button.
EnterNameoftheApplicationThiswillbeapplicationnamethiswillbevisiblewithHomeScre
enIcon.
PackageNameEnterpackagenameatleasttwoidentifier(Eg:com.example).BestPractice
is3ormoreidentifier(Eg:com.example.firstapp).
Save Location Location where to save the
ProjectLanguage Choose Java
Minimum API Level Android 5.0
Select Checkbox Use androidx.artifacts folder as below screenshot.

Android ProjectStructure:
Select Project Explorer and Select Android from Project View

Basic View:
2. Importing an Existing Project in AndroidStudio

3. Creating an Activity inAndroid
Right Click on PackageNewActivityEmpty Activity
Enter Activity Name and Press Finish

Creating a Layout inAndroid
Right Click on Layout FolderNewXMLLayout XMLFile
Enter xml file name and press Finish

Creating Assets Folder inAndroid
Right Click on app folder New Folder Assets Folder Press Finish
Button

Creating File in assetsFolder:
RightClickonassetsfolderNewFile
Enter filename with extension (Eg: abc.xml)

Programs
PART A
Program 1
CreateanapplicationtodesignaVisitingCard.TheVisitingcardshouldhaveacompanylogoat the top
right corner. The company name should be displayed in Capital letters, aligned to the center.
Information like the name of the employee, job title, phone number, address, email, fax and the
website address is to be displayed. Insert a horizontal line between the job title and the
phonenumber.
1. Create a New Android Project with EmptyActivity.

2. Openactivity_main.xmlfilefromreslayoutfolder,check/addLinearLayoutastherootview.
3. Create layout using nested Relative Layout andTextView.
4. Use View background property to draw theline
5. Add Image to drawable folder and reference the image in the layout using
@drawable/<image_name>
6. Use android:layout_gravity/android:gravity properties to center thecomponents.
Design

activity_main.xml
<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent" android:layout_height="match_parent"
android:orientation="vertical"
android:paddingLeft="20dp"
android:paddingTop="25dp"
android:paddingRight="20dp"
tools:context=".MainActivity">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="59dp">
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="44dp"
android:layout_alignParentStart="true"
android:layout_alignParentBottom="true"
android:layout_marginStart="31dp"
android:layout_marginLeft="20dp"
android:layout_marginBottom="10dp"
android:gravity="center"
android:text="GLOBALTECHNOLOGYLTD"
android:textColor="#E61717"
android:textSize="20sp"/>
<ImageView
android:id="@+id/imageView4"
android:layout_width="48dp"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_marginLeft="11dp"
android:layout_toRightOf="@id/textView"
app:srcCompat="@drawable/gat_logo"/>
</RelativeLayout>
<View
android:background="#000000"
/>
<TextView
android:layout_height="wrap_content"
android:text="Amith"
android:textSize="16dp"

android:layout_marginTop="10dp"
android:textColor="#000000"
/>
<TextView
android:text="softwaredeveloper"
/>
<View
android:background="#000000"
/>
<TextView
android:text="+91-91082-75635"
/>
<TextView
android:text="Bangalore"
/>
<TextView
android:text="Email:info@gat.ac.in,Website:https://gat.ac.in/, Fax:+91-80-
28603158"
/>
</LinearLayout>

Sample Output

Program 2
Develop an Android application using controls like Button, TextView, EditText for designing a Calculator
having basic functionality like Addition, Subtraction, Multiplication, and Division.

2. Open activity_main.xml filefromres layout folder, check/add
ConstraintLayoutastherootview.
3. Create Layout using Drag and Dropframework.
4. OpenMainActivty.javafile,OverrideonCreate()methodandbringactivity_main.xmlfile on
screen using setContentView() and bring the view references using findViewById()
method.
5. Add Listeners to Button ClickEvent:
6. Create a class which implements OnClickListenerinterface.
7. Override onClick() method of OnClickListenerInterface.
8. Register the button for click event by calling setOnClickListener() method of View class
and pass the object of the class that implemented OnClickListenerInterface.
9. Create a logic to Add/Subtract/Multiply/Divide to perform arithmetic operation on 2
operands (Eg: 10+20), If more than 2 operands or wrong input, display invalid input
messages.

Design

activity_main.xml
<androidx.constraintlayout.widget.ConstraintLayoutxmlns:android="http://schemas.androi
d.com/apk/res/android"
<Button
android:id="@+id/button_clear"
android:text="C"
app:layout_constraintStart_toStartOf="@+id/button_add"
app:layout_constraintTop_toBottomOf="@+id/button_add"/>
<Button
android:id="@+id/button_sub"
android:text="-"
app:layout_constraintStart_toEndOf="@+id/button_three"
app:layout_constraintTop_toBottomOf="@+id/button_mul"/>
<Button
android:id="@+id/button_add"
android:text="+"
app:layout_constraintStart_toEndOf="@+id/button_equal"
app:layout_constraintTop_toBottomOf="@+id/button_sub"/>
<Button
android:id="@+id/button_mul"
android:text="*"
app:layout_constraintStart_toEndOf="@+id/button_six"
app:layout_constraintTop_toBottomOf="@+id/button_div"/>

<Button
android:id="@+id/button_equal"
android:text="="
app:layout_constraintStart_toEndOf="@+id/button_zero"
app:layout_constraintTop_toBottomOf="@+id/button_three"/>
<Button
android:id="@+id/button_zero"
android:text="0"
app:layout_constraintStart_toEndOf="@+id/button_dot"
app:layout_constraintTop_toBottomOf="@+id/button_two"/>
<Button
android:id="@+id/button_dot"
android:text="."
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/button_one"/>
<Button
android:id="@+id/button_three"
android:text="3"
app:layout_constraintStart_toEndOf="@+id/button_two"
app:layout_constraintTop_toBottomOf="@+id/button_six"/>
<Button
android:id="@+id/button_two"
android:text="2"
app:layout_constraintStart_toEndOf="@+id/button_one"
app:layout_constraintTop_toBottomOf="@+id/button_five"/>

<Button
android:id="@+id/button_one"
android:text="1"
app:layout_constraintTop_toBottomOf="@+id/button_four"/>
<Button
android:id="@+id/button_six"
android:text="6"
app:layout_constraintStart_toEndOf="@+id/button_five"
app:layout_constraintTop_toBottomOf="@+id/button_nine"/>
<Button
android:id="@+id/button_seven"
android:text="7"
app:layout_constraintTop_toBottomOf="@+id/txt_result"/>
<Button
android:id="@+id/button_eight"
android:text="8"
app:layout_constraintStart_toEndOf="@+id/button_seven"
<Button
android:id="@+id/button_nine"
android:text="9"
app:layout_constraintStart_toEndOf="@+id/button_eight"

<Button
ndroid:id="@+id/button_four"
android:text="4"
app:layout_constraintTop_toBottomOf="@+id/button_seven"/>
<TextView
android:text="SIMPLECALCULATOR"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<TextView android:id="@+id/textView2"
android:text="Result"
android:textStyle="bold"
app:layout_constraintEnd_toStartOf="@+id/textView"
app:layout_constraintTop_toBottomOf="@+id/textView"/>
<EditText
android:id="@+id/txt_result"
android:ems="10"
android:inputType="textPersonName"
app:layout_constraintStart_toStartOf="@+id/textView2"
app:layout_constraintTop_toBottomOf="@+id/textView2"/>
<Button
android:id="@+id/button_div"
android:text="/"

app:layout_constraintStart_toEndOf="@+id/button_nine"
<Button
android:id="@+id/button_five"
android:text="5"
app:layout_constraintStart_toEndOf="@+id/button_four"
app:layout_constraintTop_toBottomOf="@+id/button_eight"/>
</androidx.constraintlayout.widget.ConstraintLayout>
MainActivity.java
packagecom.example.partaprogram2;
importandroidx.appcompat.app.AppCompatActivity;
importandroid.os.Bundle;
importandroid.view.View;
importandroid.widget.Button;
importandroid.widget.EditText;
importandroid.widget.Toast;
importjava.util.regex.Pattern;
publicclassMainActivityextendsAppCompatActivityimplementsView.OnClickListener{
ButtonbtnOne,btnTwo,btnThree,btnFour,btnFive,btnSix;
Button btnSeven, btnEight, btnNine,
btnZero;ButtonbtnAdd,btnSub,btnMul,btnDi
v;
ButtonbtnClear,btnEqual,btnDot;
EditTexttxtResult;
@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnOne=(Button)findViewById(R.id.button_one);
btnOne.setOnClickListener(this);
btnTwo=(Button)findViewById(R.id.button_two);
btnTwo.setOnClickListener(this);
btnThree=(Button)findViewById(R.id.button_three);
btnThree.setOnClickListener(this);

btnFour=(Button)findViewById(R.id.button_four);
btnFour.setOnClickListener(this);
btnFive=(Button)findViewById(R.id.button_five);
btnFive.setOnClickListener(this);
btnSix=(Button)findViewById(R.id.button_six);
btnSix.setOnClickListener(this);
btnSeven=(Button)findViewById(R.id.button_seven);
btnSeven.setOnClickListener(this);
btnEight=(Button)findViewById(R.id.button_eight);
btnEight.setOnClickListener(this);
btnNine=(Button)findViewById(R.id.button_nine);
btnNine.setOnClickListener(this);
btnZero=(Button)findViewById(R.id.button_zero);
btnZero.setOnClickListener(this);
btnAdd=(Button)findViewById(R.id.button_add);
btnAdd.setOnClickListener(this);
btnSub=(Button)findViewById(R.id.button_sub);
btnSub.setOnClickListener(this);
btnMul=(Button)findViewById(R.id.button_mul);
btnMul.setOnClickListener(this);
btnDiv=(Button)findViewById(R.id.button_div);
btnDiv.setOnClickListener(this);
btnClear=(Button)findViewById(R.id.button_clear);
btnClear.setOnClickListener(this);
btnEqual=(Button)findViewById(R.id.button_equal);
btnEqual.setOnClickListener(this);
btnDot=(Button)findViewById(R.id.button_dot);
btnDot.setOnClickListener(this);
txtResult=(EditText)findViewById(R.id.txt_result);
txtResult.setText("");
}

publicvoidonClick(Viewv)
{
if(v.equals(btnOne))
txtResult.append("1");
if(v.equals(btnTwo))
if(v.equals(btnThree))
if(v.equals(btnFour))
if(v.equals(btnFive))
if(v.equals(btnSix))
if(v.equals(btnSeven))
if(v.equals(btnEight))
if(v.equals(btnNine))
if(v.equals(btnZero))
if(v.equals(btnDot))
txtResult.append(".");
if(v.equals(btnClear))
txtResult.setText("");
if(v.equals(btnEqual))
{
try {
Stringdata=txtResult.getText().toString();
if(data.contains("/")){
String[]operands=data.split("/");
if(operands.length==2){
doubleoperand1=Double.parseDouble(operands[0]);
doubleresult=operand1/operand2;
txtResult.setText(String.valueOf(result));
}
else
{
Toast.makeText(getBaseContext(),"InvalidInput",
Toast.LENGTH_LONG).show();
}
}
elseif(data.contains("*")){
String[]operands=data.split(Pattern.quote("*"));
doubleresult=operand1*operand2;
}
else
{
}
}
elseif(data.contains("+")){
String[]operands=data.split(Pattern.quote("+"));
doubleresult=operand1+operand2;
}
else
{
}
}
elseif(data.contains("-")){
String[]operands=data.split("-");
doubleresult=operand1-operand2;
}
else
{
}
}
}
catch(Exceptione){
}
}

if(v.equals(btnAdd))
txtResult.append("+");
if(v.equals(btnSub))
txtResult.append("-");
if(v.equals(btnMul))
txtResult.append("*");
if(v.equals(btnDiv))
txtResult.append("/");
}
}
Sample Output

Program 3
Create a SIGN Up activity with Username and Password. Validation of password should happen based on
the following rules:
 Password should contain uppercase and lowercaseletters.
 Password should contain letters andnumbers.
 Password should contain specialcharacters.
 Minimum length of the password (the default value is8).
On successful SIGN UP proceed to the next Login activity. Here the user should SIGN IN using the
Username and Password created during signup activity. If the Username and Password are matched then
navigate to the next activity which displays a message saying “Successful Login” or else display a toast
message saying “Login Failed”. The user is given only two attempts and after that display a toast message
saying “Failed Login Attempts” and disable the SIGN IN button. Use Bundle to transfer information from
one activity to another.

2. Open activity_main.xml filefromres layout folder, check/add
ConstraintLayoutastherootview.
3. Create Signup Layout using Drag and Drop framework design thelayout.
4. Create One more Empty Activity LoginActivity using Android Studio Create Activity
Flow (Refer Android StudioTutorial)
5. Openactivity_login.xmlfilefromreslayoutfolder,check/addConstraintLayout asthe
rootview.
6. Create Login Layout using Drag and Dropframework.
 Create a class which implements OnClickListenerinterface.
 Override onClick() method of OnClickListenerInterface.
 Register the button for click event by calling setOnClickListener() method of View
class and pass the object of the class that implemented OnClickListenerInterface.
8. Use Regular Expression"^(?=.*[A-Z])(?=.*[a-z])(?=.*\\d)(?=.*[@$!])[A-Za-
z\\d@$!]{8,}$” to validate thepassword.

Design
Activity_main.xml
android:text="SIGNUP"
android:textColor="@android:color/background_dark"

android:text="USERNAME"
<TextView
android:id="@+id/textView4"
android:text="PASSWORD"
<EditText
android:id="@+id/txt_username"
android:layout_marginEnd="10dp"
android:ems="10"
app:layout_constraintBottom_toBottomOf="@+id/textView3"
app:layout_constraintStart_toEndOf="@+id/textView3"
app:layout_constraintTop_toTopOf="@+id/textView3"/>
<EditText
android:id="@+id/txt_password"
android:ems="10"
android:inputType="textPassword"
app:layout_constraintEnd_toEndOf="@+id/txt_username"
app:layout_constraintStart_toStartOf="@+id/txt_username"
app:layout_constraintTop_toBottomOf="@+id/txt_username"/>
<Button
android:id="@+id/btn_signup"
android:text="SignUp"
app:layout_constraintTop_toBottomOf="@+id/txt_password"/>

Activity_login.xml
tools:context=".LoginActivity">
android:text="Login"
android:text="Username"
<EditText
android:id="@+id/txt_login_username"
android:ems="10"
app:layout_constraintBottom_toBottomOf="@+id/textView9"
<TextView

android:text="PASSWORD"
<EditText
android:id="@+id/txt_login_password"
android:ems="10"
android:inputType="textPassword"
app:layout_constraintEnd_toEndOf="@+id/txt_login_username"
app:layout_constraintStart_toStartOf="@+id/txt_login_username"
<Button
android:id="@+id/btn_login_signin"
android:text="Login"
app:layout_constraintTop_toBottomOf="@+id/txt_login_password"/>
MainActivity.java
packagecom.example.parta.program3;
importandroid.content.Intent;
importjava.util.regex.Matcher;
importjava.util.regex.Pattern;
EditTexttxtUsername;
EditTexttxtPassword;
ButtonbtnSignup;
StringregularExpression="^(?=.*[A-Z])(?=.*[a-z])(?=.*\\d)(?=.*[@$!])[A-Za-
z\\d@$!]{8,}$";

@Override
txtUsername=(EditText)findViewById(R.id.txt_username);
txtPassword=(EditText)findViewById(R.id.txt_password);
btnSignup=(Button)findViewById(R.id.btn_signup);
btnSignup.setOnClickListener(this);
{
Stringusername=txtUsername.getText().toString();
Stringpassword=txtPassword.getText().toString();
if(validatePassword(password)){
Bundlebundle=newBundle();
bundle.putString("user",username);
bundle.putString("Lab@2018",password);
Intentit=newIntent(this,LoginActivity.class);
it.putExtra("data",bundle);
startActivity(it);
}
else
{
Toast.makeText(getBaseContext(),"InvalidPassword",
}
}
publicbooleanvalidatePassword(Stringpassword)
{
Patternpattern=Pattern.compile(regularExpression);
Matchermatcher=pattern.matcher(password);
returnmatcher.matches();
}
}

LoginActivity.java
packagecom.example.parta.program3;
publicclassLoginActivityextendsAppCompatActivityimplementsView.OnClickListener{
EditTexttxtLoginUsername;
EditTexttxtLoginPassword;
ButtonbtnLogin;
Stringuser,pass;
intcount=0;
@Override
setContentView(R.layout.activity_login);
txtLoginUsername=(EditText)
findViewById(R.id.txt_login_username);
txtLoginPassword=(EditText)
findViewById(R.id.txt_login_password);
btnLogin=(Button)findViewById(R.id.btn_login_signin);
btnLogin.setOnClickListener(this);
Bundlebundle=getIntent().getBundleExtra("data");
user=bundle.getString("user");
pass=bundle.getString("Lab@2018");
{
Stringuser1=txtLoginUsername.getText().toString();
Stringpass1=txtLoginPassword.getText().toString();
if(user.equals(user1)&&pass.equals(pass1))
{
Toast.makeText(this,"LoginSuccessful"
,Toast.LENGTH_LONG).show();
}
else

{count++; if(count==3)
{
btnLogin.setEnabled(false);
Toast.makeText(this,
"FailedLoginAttempts"
}
else
{
Toast.makeText(this,"LoginFailed"+count
}
}
}
}
Sample Output

Program 4
Develop an application to set an image as wallpaper. On click of a button, the wallpaper image
should start to change randomly every 30 seconds.

2. Open activity_main.xml filefromreslayout
folder,check/addLinearLayoutastherootview.
3. Create thelayout
4. Add 3 or Moreimagesto drawablefolder(resdrawable)
5. Declare uses permission android.permission.SET_WALLPAPPER in the
AndroidManifest.xmlfile
6. Schedule Timer task to change the wallpaper on every 30 secondsinterval.
7. Initialize and use WallpaperManager.setBitmap() method to change thewallpaper.
activity_main.xml
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent"
android:orientation="vertical"
<Button
android:text="ClickheretoChangeWallpaper"
android:id="@+id/btn_start_change_wallpaper"/>
</LinearLayout>

MainActivity.java
packagecom.example.program4;
importandroid.app.WallpaperManager;
importandroid.graphics.BitmapFactory;
importjava.util.Timer;
importjava.util.TimerTask;
ButtonbtnChangeWallpaper;
booleanrunning;
int[]imagesArray=newint[]{
R.drawable.img1,
R.drawable.img2,
R.drawable.img3,
R.drawable.img4,
R.drawable.img5,
R.drawable.img6,
R.drawable.img7,
R.drawable.img8,
R.drawable.img9,
R.drawable.img10,
R.drawable.img11,
R.drawable.img12
};
inti=0;
@Override
btnChangeWallpaper=(Button)
findViewById(R.id.btn_start_change_wallpaper);
btnChangeWallpaper.setOnClickListener(this);

{
if(!running)
{
newTimer().schedule(newMyTimer(),0,3000);
running=true;
}
}
classMyTimerextendsTimerTask
{
publicvoidrun()
{
try
{
WallpaperManagerwallpaperManager=
WallpaperManager.getInstance(getBaseContext());
if(i==12)
i=1;
if(i==11)
i=2;
if(i==10)
i=3;
if(i==9)
i=4;
if(i==8)
i=5;
if(i==7)
i=6;
if(i==6)
i=7;
if(i==5)
i=8;
if(i==4)
i=9;
if(i==3)
i=10;

wallpaperManager.setBitmap(BitmapFactory.decodeResource(getResources()
,imagesArray[i]));
i++;
}
catch(Exceptione)
{
}
}
AndriodManifest.xml
<manifestxmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.program4">
<uses-permissionandroid:name="android.permission.SET_WALLPAPER"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activityandroid:name=".MainActivity">
<intent-filter>
<actionandroid:name="android.intent.action.MAIN"/>
<categoryandroid:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>

Sample Output

Program 5
Write a program to create an activity with two buttons START and STOP. On Pressing of the START
button, the activity must start the counter by displaying the numbers from One and the counter must keep
on counting until the STOP button is pressed. Display the counter value in a TextViewcontrol.

2. Openactivity_main.xmlfilefromreslayoutfolder,check/addConstraintLayoutastherootv
iew.
3. Create the layout design using Drag and Dropframework.
5. Create a Thread to start the counterlogic.
6. Steps to Create aThread
 Create a class that extends ThreadClass.
 Override run method of Thread Class.
 Use start() method of thread class to start thethread.
7. Create Handler class to receive message from child thread, Handler executes in Main
Thread.
8. Steps to CreateHandler
 Create Object of typeHandler.
 OverridhandleMessage() of handlerclass.
9. Pass the counter value to be displayed to thehandler.
10. Update the UI to display the counter value received fromthread.

Design
activity_main.xml
android:id="@+id/lbl_counter"
<TextView
android:text="CounterApplication"
android:textSize="36sp"
<TextView
android:id="@+id/lbl_text"
android:text="CounterValue"
android:textColor="@color/colorAccent"
android:textSize="30sp"
<Button
android:id="@+id/btn_start"
android:text="Start"
app:layout_constraintTop_toBottomOf="@+id/lbl_text"/>
<Button
android:id="@+id/btn_stop"
android:text="Stop"
app:layout_constraintTop_toBottomOf="@+id/btn_start"/>
MainActivity.java
packagecom.example.program5;
importandroid.os.Handler;
importandroid.os.Message;
importandroid.widget.TextView;
importorg.w3c.dom.Text;
TextViewlblCounter;
ButtonbtnStart,btnStop;
intcounter=0;
booleanrunning=false;
@Override
lblCounter=(TextView)findViewById(R.id.lbl_text);
btnStart=(Button)findViewById(R.id.btn_start);
btnStop=(Button)findViewById(R.id.btn_stop);
btnStop.setOnClickListener(this);
btnStart.setOnClickListener(this);
}
{
if(v.equals(btnStart))
{
counter=0;
running=true;
newMyCounter().start();
}
elseif(v.equals(btnStop))
{
running=false;
}
}
Handlerhandler=newHandler()
{
publicvoidhandleMessage(Messagem)
{
lblCounter.setText(String.valueOf(m.what));
}
};
classMyCounterextendsThread
{
publicvoidrun()
{
while(running)
{
counter++;
handler.sendEmptyMessage(counter);
try {
Thread.sleep(1000);
}
catch(Exceptione){ }
}
}
}
}

Sample Output

Program 6
Create two files of XML and JSON type with values for City_Name, Latitude, Longitude, Temperature,
and Humidity. Develop an application to create an activity with two buttons to parse the XML and JSON
files which when clicked should display the data in their respective layouts side byside.

iew.
 Override onClick() method of OnClickListener Interface.
5. Create assets folder (Refer Section Android StudioTutorial)
6. Create input.xml file inside assets folder and paste the below XmlData
<?xml version="1.0"?>
<records>
<employee>
<city_name>Mysore</city_name>
<Latitude>12.295</Latitude>
<Longitude>76.639</Longitude>
<Temperature>22</Temperature>
<Humidity>90%</Humidity>
</employee>
</records>
7. Create input.json file inside assets folder and paste the below JsonData
{
"employee": {
"city_name": "Mysore",
"Latitude": "12.295",
"Longitude": "76.639",
"Temperature": 22,
"Humidity": "90%"
}
}
8. Read the XML and Json Data in the files and display onscreen
Rea

Design
activity_main.xml
<Button
android:id="@+id/btn_parsexml"
android:text="ParseXMLData"

<Button
android:id="@+id/btn_parsejson"
android:text="ParseJsonData"
app:layout_constraintTop_toBottomOf="@+id/btn_parsexml"/>
android:text="PARSINGXMLANDJSONDATA"
activity_view.xml
xmlns:tools="http://schemas.android.com/tools"android:layout
_width="match_parent" android:layout_height="match_parent"
tools:context=".ViewActivity">
<TextView
android:id="@+id/lbl_xml_data"
android:text="XmlData"
<TextView
android:text="PARSINGXMLANDJSONDATA"
android:text="XMLDATA"
android:text="JSONDATA"
<TextView
android:id="@+id/lbl_json_data"
android:text="JsonData"
app:layout_constraintEnd_toEndOf="@+id/textView3"
MainActivity.java
packagecom.example.parta_program6;
ButtonbtnParseXml,btnParseJson;
@Override
btnParseXml=(Button)findViewById(R.id.btn_parsexml);
btnParseJson=(Button)findViewById(R.id.btn_parsejson);
btnParseJson.setOnClickListener(this);
btnParseXml.setOnClickListener(this);
}
@Override
publicvoidonClick(Viewv){
if(v.equals(btnParseJson))
{
Intentit=newIntent(this,ViewActivity.class);
it.putExtra("mode",1);
startActivity(it);
}
elseif(v.equals(btnParseXml))
{
Intentit=newIntent(this,ViewActivity.class);
it.putExtra("mode",2);
startActivity(it);
}
}
}
ViewActivity.java
packagecom.example.parta_program6;
importorg.json.JSONObject;
importorg.w3c.dom.Document;
importorg.w3c.dom.Element;
importorg.w3c.dom.Node;
importorg.w3c.dom.NodeList;
importjava.io.InputStream;
importjavax.xml.parsers.DocumentBuilder;
importjavax.xml.parsers.DocumentBuilderFactory;
publicclassViewActivityextendsAppCompatActivity{ TextViewlblXmlData,lblJsonData;
intmode=0;@O
verride
setContentView(R.layout.activity_view);
lblXmlData=(TextView)findViewById(R.id.lbl_xml_data);
lblJsonData=(TextView)findViewById(R.id.lbl_json_data);
mode=getIntent().getIntExtra("mode",0);

if(mode==1)
parseJson();
else
parseXmlDocument();
publicStringparseXmlDocument()
{
try {
InputStreamis=getAssets().open("input.xml");
DocumentBuilderFactorydbFactory=DocumentBuilderFactory.newInstance();
DocumentBuilderdBuilder=dbFactory.newDocumentBuilder();
Documentdoc=dBuilder.parse(is);
Elementelement=doc.getDocumentElement();
element.normalize();
NodeListnList=doc.getElementsByTagName("employee");
for(inti=0;i<nList.getLength();i++){
Nodenode=nList.item(i);
if(node.getNodeType()==Node.ELEMENT_NODE){
Elementelement2=(Element)node;
lblXmlData.setText("CityName:"+getValue("city_name",element2)+"\n");
lblXmlData.append("Latitude:"+getValue("Latitude",element2)+"\n");
lblXmlData.append("Longitude:"+getValue("Longitude",element2)+"\n");
lblXmlData.append("Temperature:"+getValue("Temperature",element2)+"\n");
lblXmlData.append("Humidity:"+getValue("Humidity",element2)+"\n");
}
}
}
catch(Exceptione){e.printStackTrace();}
return null;
}
privatestaticStringgetValue(Stringtag,Elementelement){
NodeListnodeList=element.getElementsByTagName(tag).item(0).getChildNodes();
Nodenode=nodeList.item(0);
returnnode.getNodeValue();
}
publicvoidparseJson()
{
try {
InputStreaminputStream=getAssets().open("input.json");
byte[]data=newbyte[inputStream.available()];
inputStream.read(data);

StringreadData=newString(data);
JSONObjectjsonObject=newJSONObject(readData);
JSONObjectjsonObject1=jsonObject.getJSONObject("employee");
lblJsonData.setText("CityName:"+jsonObject1.getString("city_name")+"\n");
lblJsonData.append("Latitude:"+jsonObject1.getString("Latitude")+"\n");
lblJsonData.append("Longitude"+jsonObject1.getString("Longitude")+"\n");
lblJsonData.append("Temperature:"+jsonObject1.getInt("Temperature")+"\n");
lblJsonData.append("Humidity"+jsonObject1.getString("Humidity")+"\n");
}
catch(Exceptione){e.printStackTrace();}
}
}
Sample Output

Program 7
Develop a simple application with one EditText so that the user can write some text in it. Create a button
called “Convert Text to Speech” that converts the user input text into voice.

iew.
 Create a class which implments OnClickListenerinterface.
5. Initialize TextToSpeech Engine and the Language to Speak using setLanguage()method
6. Use Speak() method to speak the text passed toit.
Design

activity_main.xml
android:id="@+id/txt_texttospeak"
<TextView
android:text="EnterTexttoSpeak"
<EditText
android:id="@+id/editText"
android:ems="10"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="@+id/textView"
<Button
android:id="@+id/btn_speak"
android:text="Speak"
app:layout_constraintTop_toBottomOf="@+id/editText"/>

MainActivity.java
packagecom.example.parta.parta_program7;
importandroid.speech.tts.TextToSpeech;
importjava.util.Locale;
EditTexttxtSpeak;
ButtonbtnSpeak;
TextToSpeechtextToSpeech;
@Override
txtSpeak=(EditText)findViewById(R.id.editText);
btnSpeak=(Button)findViewById(R.id.btn_speak);
btnSpeak.setOnClickListener(this);
textToSpeech=newTextToSpeech(getBaseContext(),
newTextToSpeech.OnInitListener(){
@Override
publicvoidonInit(intstatus){
if(status!=TextToSpeech.ERROR)
{
Toast.makeText(getBaseContext(),"Success",Toast.LENGTH_LONG).show();
}
}
});
textToSpeech.setLanguage(Locale.UK);
}
{
Stringtext=txtSpeak.getText().toString();
textToSpeech.speak(text,TextToSpeech.QUEUE_FLUSH,null);
}
}

Sample Output

Program 8
CreateanactivitylikeaphonedialerwithCALLandSAVEbuttons.OnpressingtheCALLbutton,itmust
callthephonenumberand onpressingtheSAVE buttonitmustsavethenumberto thephonecontacts.

2. Open activity_main.xml filefromres layout folder, check/add ConstraintLayout
astherootview.
 Create a class which implments OnClickListenerinterface.
5. Declare uses permission android.permission.CALL_PHONE in the manifestfile.
6. Use ACTION_CALL intent name and pass the “tel:<phone-number> as URI in intent
data and start the callactivity.
7. Use intent name and pass the “Telephone Number” and “unknown” as name as intent
data call Contacts SaveActivity.

Design

activity_main.xml
<TextView
android:text="PHONEDAILER"
<EditText
android:id="@+id/txt_phonenumber"
android:ems="10"
<Button
android:id="@+id/btn_delete"
android:text="Delete"
app:layout_constraintStart_toEndOf="@+id/txt_phonenumber"
<Button
android:id="@+id/btn_one"
android:text="1"
app:layout_constraintTop_toBottomOf="@+id/txt_phonenumber"/>
<Button
android:id="@+id/btn_two"
android:text="2"

app:layout_constraintEnd_toStartOf="@+id/btn_three"
app:layout_constraintStart_toEndOf="@+id/btn_one"
<Button
android:id="@+id/btn_three"
android:text="3"
<Button
android:id="@+id/btn_four"
android:text="4"
app:layout_constraintTop_toBottomOf="@+id/btn_one"/>
<Button
android:id="@+id/btn_five"
android:text="5"
app:layout_constraintEnd_toStartOf="@+id/btn_six"
app:layout_constraintStart_toEndOf="@+id/btn_four"
app:layout_constraintTop_toBottomOf="@+id/btn_two"/>
<Button
android:id="@+id/btn_six"
android:text="6"
app:layout_constraintTop_toBottomOf="@+id/btn_three"/>
<Button
android:id="@+id/btn_seven"
android:text="7"
app:layout_constraintTop_toBottomOf="@+id/btn_four"/>
<Button
android:id="@+id/btn_eight"

android:text="8"
app:layout_constraintEnd_toStartOf="@+id/btn_nine"
app:layout_constraintStart_toEndOf="@+id/btn_seven"
app:layout_constraintTop_toBottomOf="@+id/btn_five"/>
<Button
android:id="@+id/btn_nine"
android:text="9"
app:layout_constraintTop_toBottomOf="@+id/btn_six"/>
<Button
android:id="@+id/btn_zero"
android:text="0"
app:layout_constraintTop_toBottomOf="@+id/btn_eight"/>
<Button
android:id="@+id/btn_call"
android:text="Call"
app:layout_constraintTop_toBottomOf="@+id/btn_zero"/>
<Button
android:id="@+id/btn_save"
android:text="Save"
app:layout_constraintTop_toBottomOf="@+id/btn_zero"/>
<Button
android:id="@+id/btn_start"
android:text="*"
app:layout_constraintTop_toBottomOf="@+id/btn_seven"/>
<Button
android:id="@+id/btn_hash"

android:text="#"
app:layout_constraintTop_toBottomOf="@+id/btn_nine"/>
MainActivity.java
packagecom.example.part_a_program_8;
importandroid.net.Uri;
importandroid.provider.ContactsContract;
ButtonbtnOne,btnTwo,btnThree,btnFour,btnFive;
ButtonbtnSix,btnSeven,btnEight,btnNine,btnZero;
ButtonbtnDel,btnStar,btnHash,btnCall,btnSave;
EditTexttxtPhonenumber;
@Override
btnOne=(Button)findViewById(R.id.btn_one);
btnOne.setOnClickListener(this);
btnTwo=(Button)findViewById(R.id.btn_two);
btnTwo.setOnClickListener(this);
btnThree=(Button)findViewById(R.id.btn_three);
btnThree.setOnClickListener(this);
btnFour=(Button)findViewById(R.id.btn_four);
btnFour.setOnClickListener(this);
btnFive=(Button)findViewById(R.id.btn_five);
btnFive.setOnClickListener(this);
btnSix=(Button)findViewById(R.id.btn_six);
btnSix.setOnClickListener(this);
btnSeven=(Button)findViewById(R.id.btn_seven);
btnSeven.setOnClickListener(this);
btnEight=(Button)findViewById(R.id.btn_eight);
btnEight.setOnClickListener(this);

btnNine=(Button)findViewById(R.id.btn_nine);
btnNine.setOnClickListener(this);
btnZero=(Button)findViewById(R.id.btn_zero);
btnZero.setOnClickListener(this);
btnStar=(Button)findViewById(R.id.btn_start);
btnStar.setOnClickListener(this);
btnHash=(Button)findViewById(R.id.btn_hash);
btnHash.setOnClickListener(this);
btnCall=(Button)findViewById(R.id.btn_call);
btnCall.setOnClickListener(this);
btnSave=(Button)findViewById(R.id.btn_save);
btnSave.setOnClickListener(this);
btnDel=(Button)findViewById(R.id.btn_delete);
btnDel.setOnClickListener(this);
txtPhonenumber=(EditText)findViewById(R.id.txt_phonenumber);
txtPhonenumber.setText("");
}
{
if(v.equals(btnOne))
txtPhonenumber.append("1");
else if(v.equals(btnTwo))
else if(v.equals(btnThree))
else if(v.equals(btnFour))
else if(v.equals(btnFive))
else if(v.equals(btnSix))
else if(v.equals(btnSeven))
else if(v.equals(btnEight))
else if(v.equals(btnNine))
else if(v.equals(btnZero))

elseif(v.equals(btnStar))
txtPhonenumber.append("*");
else if(v.equals(btnHash))
txtPhonenumber.append("#");
else if(v.equals(btnSave))
{
IntentcontactIntent=newIntent
(ContactsContract.Intents.Insert.ACTION);
contactIntent.setType
(ContactsContract.RawContacts.CONTENT_TYPE);
contactIntent
.putExtra(ContactsContract.Intents.Insert.NAME,"Unknown");
contactIntent.putExtra(ContactsContract.Intents.Insert.PHONE,
txtPhonenumber.getText().toString());
startActivity(contactIntent);
else if(v.equals(btnDel))
{
Stringdata=txtPhonenumber.getText().toString();
if(data.length()>0)
{
txtPhonenumber.setText
(data.substring(0,data.length()-1));
}
else
{
txtPhonenumber.setText("");
}
}
btnCall.setOnClickListener(newView.OnClickListener()
{
@Override
Stringdata=txtPhonenumber.getText().toString();
Intentintent=newIntent(Intent.ACTION_DIAL);
intent.setData(Uri.parse("tel:"+data));
startActivity(intent);
}
}
);

AndriodManifest.xml
package="com.example.part_a_program_8">
<uses-permission android:name="android.permission.CALL_PHONE"/>
<application
<intent-filter>
</intent-filter>
</activity>
</application>
</manifest>
Sample Output

Additional Experiments
Program 1
Write a program to enter Medicine Name, Date and Time of the Day as input from the user and
or Evening or Night. Trigger an alarm based on the Date and Time of the Day and display the
Medicine Name.
Design
activity_main.xml

android:text="MedicineDatabase"
android:text="MedicineName"
app:layout_constraintTop_toTopOf="@+id/txt_medicine_name"/>
android:text="Date"
app:layout_constraintBottom_toBottomOf="@+id/txt_date"
app:layout_constraintTop_toBottomOf="@+id/txt_medicine_name"/>
android:text="Time"
app:layout_constraintTop_toTopOf="@+id/txt_time"/>
<EditText
android:id="@+id/txt_medicine_name"
android:ems="10"
<EditText
android:id="@+id/txt_date"
android:ems="10"
app:layout_constraintStart_toStartOf="@+id/txt_medicine_name"
app:layout_constraintTop_toBottomOf="@+id/txt_medicine_name"/>

<EditText
android:id="@+id/txt_time"
android:ems="10"
app:layout_constraintStart_toStartOf="@+id/txt_date"
app:layout_constraintTop_toBottomOf="@+id/txt_date"/>
<Button
android:text="Save"
app:layout_constraintStart_toStartOf="@+id/txt_time"
app:layout_constraintTop_toBottomOf="@+id/txt_time"/>
<Button
ndroid:id="@+id/btn_show"
android:text="Show"
app:layout_constraintEnd_toEndOf="@+id/txt_time"
app:layout_constraintTop_toBottomOf="@+id/txt_time"/>
<TextView
android:id="@+id/lbl_data"
android:text="Data"
app:layout_constraintTop_toBottomOf="@+id/btn_save"/>
MyDatabase.java
packagecom.example.partb_program1;
importandroid.content.Context;
importandroid.database.sqlite.SQLiteDatabase;
importandroid.database.sqlite.SQLiteOpenHelper;
importandroidx.annotation.Nullable;
publicclassMyDatabaseextendsSQLiteOpenHelper{
publicstaticStringDATABASE_NAME="medicine.db";
publicMyDatabase(@NullableContextcontext,@NullableStringname,@Nullable
SQLiteDatabase.CursorFactoryfactory,intversion){
super(context,name,factory,version);
}

@Override
publicvoidonCreate(SQLiteDatabasedb){
db.execSQL("CREATETABLEMEDICINE_NAMES(NAMETEXT,MDATETEXT,MTIMETEXT)");
@Override
publicvoidonUpgrade(SQLiteDatabasedb,intoldVersion,intnewVersion){
}
}
MainActivity.java
importandroid.content.ContentValues;
importandroid.database.Cursor;
importandroid.database.sqlite.SQLiteDatabase;
importorg.w3c.dom.Text;
EditTexttxtMedicineName,txtDate,txtTime;
ButtonbtnSave,btnShow;
TextViewlblData;
MyDatabasemyDatabase;
@Override
txtMedicineName=(EditText)findViewById(R.id.txt_medicine_name);
txtDate=(EditText)findViewById(R.id.txt_date);
txtTime=(EditText)findViewById(R.id.txt_time);
btnSave=(Button)findViewById(R.id.btn_save);
btnSave.setOnClickListener(this);
btnShow=(Button)findViewById(R.id.btn_show);
btnShow.setOnClickListener(this);
lblData=(TextView)findViewById(R.id.lbl_data);
myDatabase=newMyDatabase(getBaseContext(),
MyDatabase.DATABASE_NAME,null,1);
{
if(v.equals(btnSave))
{
StringmedicineName=txtMedicineName.getText().toString();
Stringdate=txtDate.getText().toString();
Stringtime=txtTime.getText().toString();
SQLiteDatabasedatabase=myDatabase.getWritableDatabase();
ContentValuescv=newContentValues();
cv.put("NAME",medicineName);
cv.put("MDATE",date);
cv.put("MTIME",time);
database.insert("MEDICINE_NAMES",null,cv);
Toast.makeText(getBaseContext(),"DataSaved",Toast.LENGTH_LONG).show();
}
elseif(v.equals(btnShow))
{
SQLiteDatabasedatabase=myDatabase.getReadableDatabase();
Cursorcursor=database.query("MEDICINE_NAMES",
newString[]{"NAME","MDATE","MTIME"},null,null,null,null,null);
lblData.setText("NAME\tDATE\tTIME\n");
while(cursor.moveToNext())
{
lblData.append(cursor.getString(0)+"\t");
lblData.append(cursor.getString(1)+"\t");
lblData.append(cursor.getString(2)+"\n");
}
}
}
}

Sample Output

Program 2
Develop an application that makes use of the clipboard framework for copying and pasting of
thetext. The activity consists of two EditText controls and two Buttons to trigger the copy and
pastefunctionality.
Design

activity_main.xml
android:id="@+id/layout"
<Button
android:id="@+id/btn_create"
android:text="Create"
app:layout_constraintEnd_toStartOf="@+id/textView2"
<Button
android:id="@+id/btn_open"
android:text="Open"
android:text="FileApplication"
<EditText
android:id="@+id/txt_content"
android:ems="10"
app:layout_constraintTop_toBottomOf="@+id/btn_create"
tools:layout_editor_absoluteX="65dp"/>
<Button

android:text="Save"
app:layout_constraintTop_toBottomOf="@+id/txt_content"/>
MainActivity.java
packagecom.example.partbprogram7;
importandroid.content.ClipData;
importandroid.content.ClipboardManager;
EditTexttxtCopy,txtPaste;
ButtonbtnCopy,btnPaste;
ClipboardManagermyClipboard;
@Override
txtCopy=(EditText)findViewById(R.id.txt_copy);
txtPaste=(EditText)findViewById(R.id.txt_paste);
btnCopy=(Button)findViewById(R.id.btn_copy);
btnCopy.setOnClickListener(this);
btnPaste=(Button)findViewById(R.id.btn_paste);
btnPaste.setOnClickListener(this);
myClipboard=(ClipboardManager)getSystemService(CLIPBOARD_SERVICE);
}
@Override
if(v.equals(btnCopy))
{
ClipDatamyClip;
Stringdata=txtCopy.getText().toString();
myClip=ClipData.newPlainText("text",data);
myClipboard.setPrimaryClip(myClip);
Toast.makeText(getBaseContext(),"Copied..",Toast.LENGTH_LONG).show();
}

elseif(v.equals(btnPaste))
{
ClipDataabc=myClipboard.getPrimaryClip();
ClipData.Itemitem=abc.getItemAt(0);
txtPaste.setText(item.getText().toString());
}
}
}
AndroidManifest.xml
package="com.example.partbprogram7">
<application
<intent-filter>
</intent-filter>
</activity>
</application>
</manifest>
Sample Output

Program 3
Create an AIDL service that calculates Car Loan EMI. The formula to calculate EMI is
E = P * (r(1+r)n)/((1+r)n-1)
where
The down payment amount has to be deducted from the principal amount paid towards buying
theCar. Develop an application that makes use of this AIDL service to calculate the EMI.
Thisapplication should have four EditText to read the PrincipalAmount, Down Payment, Interest
Rate,Loan Term (in months) and a button named as “Calculate Monthly EMI”. On click of this
button,the result should be shown in a TextView. Also, calculate the EMI by varying the Loan
Term andInterest Rate values.
Design

activity_main.xml
android:id="@+id/lblpayment"
<TextView
android:text="EMICALCULATOR"
tools:layout_editor_absoluteY="76dp"/>
android:text="PrincipalAmount"
<EditText
android:id="@+id/txt_principal"
android:ems="10"
<TextView
android:id="@+id/downpayment"
android:text="DownPayment"
app:layout_constraintTop_toTopOf="@+id/txt_downnpayment"/>
<EditText
android:id="@+id/txt_downnpayment"
android:ems="10"
app:layout_constraintStart_toStartOf="@+id/txt_principal"

app:layout_constraintTop_toBottomOf="@+id/txt_principal"/>
android:text="InterestRate"
app:layout_constraintStart_toStartOf="@+id/downpayment"
app:layout_constraintTop_toTopOf="@+id/txt_interestrate"/>
<EditText
android:id="@+id/txt_interestrate"
android:ems="10"
app:layout_constraintStart_toStartOf="@+id/txt_downnpayment"
app:layout_constraintTop_toBottomOf="@+id/txt_downnpayment"/>
<TextView
android:text="LoanTerm(Months)"
app:layout_constraintTop_toTopOf="@+id/txt_termmonths"/>
<EditText
android:id="@+id/txt_termmonths"
android:ems="10"
app:layout_constraintStart_toStartOf="@+id/txt_interestrate"
app:layout_constraintTop_toBottomOf="@+id/txt_interestrate"/>
<Button
android:id="@+id/btn_calculate"
android:text="CalculateEMI"
app:layout_constraintTop_toBottomOf="@+id/txt_termmonths"/>
<TextView
android:id="@+id/lbl_emiamount"
android:text="EmiAmount"

app:layout_constraintTop_toBottomOf="@+id/btn_calculate"/>
MainActivity.java
importjava.text.DecimalFormat;
importjava.util.logging.SimpleFormatter;
EditTexttxtPrinicple,txtDownPayment,txtInterestRate,txtLoanTerm;
ButtonbtnCalculate;
TextViewlblResult;
@Override
txtPrinicple=(EditText)findViewById(R.id.txt_principal);
txtDownPayment=(EditText)findViewById(R.id.txt_downnpayment);
txtInterestRate=(EditText)findViewById(R.id.txt_interestrate);
txtLoanTerm=(EditText)findViewById(R.id.txt_termmonths);
btnCalculate=(Button)findViewById(R.id.btn_calculate);
btnCalculate.setOnClickListener(this);
lblResult=(TextView)findViewById(R.id.lbl_emiamount);
{
try
{
DecimalFormatformatter=new
DecimalFormat("#0.00");
doubleprinicipleAmount=
Double.parseDouble(txtPrinicple.
getText().toString());
doubledownPayment=Double.parseDouble(txtDownPayment.getText().toString());

prinicipleAmount=prinicipleAmount-downPayment;
doubleinterestRate=Double.parseDouble(txtInterestRate.getText().toString());
interestRate=interestRate/(12*100);
doubleloanTerm=Double.parseDouble(txtLoanTerm.getText().toString());
doubleemi=prinicipleAmount*
(interestRate*Math.pow((1+interestRate),loanTerm))
/(Math.pow((1+interestRate),loanTerm)-1);
lblResult.setText(String.valueOf(formatter.format(emi)));
}
catch(Exceptione)
{
Toast.makeText(getBaseContext(),"InvalidInput",Toast.LENGTH_LONG).show();
}
}
}
Sample Output

VIVA QUESTIONS
1. What is Android?
It is an open-sourced operating system that is used primarily on mobile devices, such as cell phones
and tablets. It is a Linux kernel-based system that’s been equipped with rich components that allows
developers to create and run apps that can perform both basic and advanced functions.</p>
2. What Is the Google Android SDK?

The Google Android SDK is a toolset that developers need in order to write apps on Android
enabled devices. It contains a graphical interface that emulates an Android driven handheld
environment, allowing them to test and debug their codes.
3. What is the Android Architecture?

Android Architecture is made up of 4 key components:
4. Describe the Android Framework.

The Android Framework is an important aspect of the Android Architecture. Here you can find all
the classes and methods that developers would need in order to write applications on the Android
environment.
5. What is AAPT?
AAPT is short for Android Asset Packaging Tool. This tool provides developers with the ability to
deal with zip-compatible archives, which includes creating, extracting as well as viewing its
contents.
6. What is the importance of having an emulator within the Android environment?

The emulator lets developers “play” around an interface that acts as if it were an actual mobile
device. They can write and test codes, and even debug. Emulators are a safe place for testing codes
especially if it is in the early design phase.
7. What is the use of an activityCreator?

An activity Creator is the first step towards the creation of a new Android project. It is made up of a
shell script that will be used to create new file system structure necessary for writing codes within
the Android IDE.
8 . Describe Activities.
Activities are what you refer to as the window to a user interface. Just as you create windows in
order to display output or to ask for an input in the form of dialog boxes, activities play the same
role, though it may not always be in the form of a user interface.
9. What are Intents?

Intents displays notification messages to the user from within the Android enabled device. It can be
used to alert the user of a particular state that occurred. Users can be made to respond to intents.
10. Differentiate Activities from Services.

Activities can be closed, or terminated anytime the user wishes. On the other hand, services are
designed to run behind the scenes, and can act independently. Most services run continuously,
regardless of whether there are certain or no activities being executed.
11. What items are important in every Android project?

These are the essential items that are present each time an Android project is created:
Android Manifest.xml
build.xml
bin/
src/
res/
assets/
12. What is the importance of XML-based layouts?

The use of XML-based layouts provides a consistent and somewhat standard means of setting GUI
definition format. In common practice, layout details are placed in XML files while other items are
placed in source files.
13. What are containers?

Containers, as the name itself implies, holds objects and widgets together, depending on which
specific items are needed and in what particular arrangement that is wanted. Containers may hold
labels, fields, buttons, or even child containers, as examples.
14. What is Orientation?

Orientation, which can be set using set Orientation(), dictates if the Linear Layout is represented as
a row or as a column. Values are set as either HORIZONTAL or VERTICAL.
15. What is the importance of Android in the mobile market?

Developers can write and register apps that will specifically run under the Android environment.
This means that every mobile device that is Android enabled will be able to support and run these
apps. With the growing popularity of Android mobile devices, developers can take advantage of this
trend by creating and uploading their apps on the Android Market for distribution to anyone who
wants to download it.
16. What do you think are some disadvantages of Android?

Given that Android is an open-source platform, and the fact that different Android operating
systems have been released on different mobile devices, there’s no clear cut policy to how
applications can adapt with various OS versions and upgrades.
–One app that runs on this particular version of Android OS may or may not run on another version.
–Another disadvantage is that since mobile devices such as phones and tabs come in different sizes
and forms, it poses a challenge for developers to create apps that can adjust correctly to the right
screen size and other varying features and specs.
17. What is adb?

Adb is short for “Android Debug Bridge”. It allows developers the power to execute remote shell
commands. Its basic function is to allow and control communication towards and from the emulator
port.
18. What are the four essential states of an activity?

Active – if the activity is at the foreground
Paused – if the activity is at the background and still visible
Stopped – if the activity is not visible and therefore is hidden or obscured by another activity
Destroyed – when the activity process is killed or completed terminated
19. What is ANR?

ANR is short for Application Not Responding. This is actually a dialog that appears to the user
whenever an application have been unresponsive for a long period of time.
20. Which elements can occur only once and must be present?
Among the different elements, the and elements must be present and can occur only once. The rest
are optional, and can occur as many times as needed.
21. How are escape characters used as attribute?

Escape characters are preceded by double backslashes. For example, a newline character is created
using
22. What is the importance of settings permissions in app development?

Permissions allow certain restrictions to be imposed primarily to protect data and code. Without
these, codes could be compromised, resulting to defects in functionality.
23. What is the function of an intent filter?

Because every component needs to indicate which intents they can respond to, intent filters are used
to filter out intents that these components are willing to receive. One or more intent filters are
possible, depending on the services and activities that is going to make use of it
24. Enumerate the three key loops when monitoring an activity?

Entire lifetime – activity happens between on Create and on Destroy
Visible lifetime – activity happens between on Start and on Stop
Foreground lifetime – activity happens between on Resume and on Pause
25. When is the on Stop(. method invoked?

A call to on Stop method happens when an activity is no longer visible to the user, either because
another activity has taken over or if in front of that activity.
26. Is there a case wherein other qualifiers in multiple resources take precedence over locale?
Yes, there are actually instances wherein some qualifiers can take precedence over locale. There are
two known exceptions, which are the MCC (mobile country code. and MNC (mobile network code.
qualifiers.

Reference Books
1. Google Developer Training, "Android Developer Fundamentals Course – Concept

Reference”, Google Developer Training Team, 2017. https://www.gitbook.com/book/google-
developer-training/android-developer- fundamentals-course-concepts/details
(Download pdf file from the above link)
2. Erik Hellman, “Android Programming – Pushing the Limits”, 1st Edition, Wiley IndiaPvt Ltd,
2014. ISBN-13:978-8126547197
3. Dawn Griffiths and David Griffiths, “Head First Android Development”, 1st Edition, O‟Reilly
SPD Publishers, 2015. ISBN-13:978-9352131341
4. BillPhillips,ChrisStewartandKristinMarsicano, “AndroidProgramming:TheBigNerd Ranch
Guide”, 3rd Edition, Big Nerd Ranch Guides, 2017. ISBN-13:978-0134706054

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MOBILE APPLICATION DEVELOPMENT

(Effective from the academic year 2018 -2019)

 Password should contain uppercase and lowercase letters.

6 Develop an application to demonstrate the use of Asynchronous tasks in android. The

Laboratory Outcomes:After studying theselaboratory programs, students will be able to

 Marks Distribution (Courseed to change in accordance with university regulations)

MOBILE APPLICATION DEVELOPMENT

[As per the Choice Based Credit System Scheme]

MAD Lab Faculty, Dept. of CSE

Name of the document Mobile Application Development Laboratory

Syllabus Scheme 2018-2019

Current version number and date V1 / 25.03.2021

Subject code 18CSMP68

Editorial Committee Prof. Shyam Sundar Bhushan

Computer Programmer Mr. Parashivamurthy C

Approved by HOD, Dept. of CSE

Sl. Particulars Page No.

Mission of the Institute

Dept. of CSE, GAT1MOBILE APPLICATION DEVELOPMENT LAB-18CSMP68

After the course completion, CSE graduates will be able to:

PEO2: Engage in improving professional knowledge through certificate/post- graduate programs

Program Specific Outcomes (PSOs)

Dept. of CSE, GAT2MOBILE APPLICATION DEVELOPMENT LAB-18CSMP68

Engineering Graduates will be able to:

1. Engineering knowledge: Apply the knowledge of mathematics, science, engineering fundamentals,

Dept. of CSE, GAT3MOBILE APPLICATION DEVELOPMENT LAB-18CSMP68

CourseName:Mobile Application Development

Upon completion of this course, students are expected to:

1. Learn and acquire the art of AndroidProgramming.

After successful completion of the Course, the participants will be able to

Create, test and debug Android application by setting up Android development

Dept. of CSE, GAT4MOBILE APPLICATION DEVELOPMENT LAB-18CSMP68

Descriptions (if any):

Dept. of CSE, GAT5MOBILE APPLICATION DEVELOPMENT LAB-18CSMP68

 Password should contain uppercase and lowercaseletters.

Dept. of CSE, GAT6MOBILE APPLICATION DEVELOPMENT LAB-18CSMP68

Dept. of CSE, GAT 7MOBILE APPLICATION DEVELOPMENT LAB18CSMP68

Dept. of CSE, GAT 8MOBILE APPLICATION DEVELOPMENT LAB18CSMP68

Dept. of CSE, GAT 9MOBILE APPLICATION DEVELOPMENT LAB18CSMP68

Dept. of CSE, GAT 10MOBILE APPLICATION DEVELOPMENT LAB18CSMP68

Dept. of CSE, GAT 11MOBILE APPLICATION DEVELOPMENT LAB18CSMP68

Dept. of CSE, GAT 12MOBILE APPLICATION DEVELOPMENT LAB18CSMP68

WEEK WISE EVALUATION OF EACH PROGRAM

INTERNAL ASSESSMENT EVALUATION

SI. No ACTIVITY MARKS

FINAL INTERNAL ASSESSMENT CALCULATION

Sl.No ACTIVITY MARKS

Dept. of CSE, GAT 13MOBILE APPLICATION DEVELOPMENT LAB18CSMP68

Dept. of CSE, GAT 14MOBILE APPLICATION DEVELOPMENT LAB18CSMP68

EXCELLENT GOOD NOT SATISFACTORY

Dept. of CSE, GAT 15MOBILE APPLICATION DEVELOPMENT LAB18CSMP68

Max 61-70 36-60 21-35 0-20

Max 13-15 8-12 5-7 0-4

Dept. of CSE, GAT 16MOBILE APPLICATION DEVELOPMENT LAB18CSMP68

Average (Max. 24) (A)

Internal Assessment Marks (Max. 16) (B)

Note:- W: Write-up C :Conduction V :Viva Voce O:Observation R :Record

Dept. of CSE, GAT 17MOBILE APPLICATION DEVELOPMENT LAB18CSMP68

 Marks Distribution (Courseed to change in accordance with university regulations)

 For laboratories having only one part–