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Android Interview Questions

Android programming is growing day by day. The questions asked by interviewers in android is given below. A list of top android interview questions and answers are given below.

1) What is Android?

Android is an open-source, linux-based operating system that is used in mobiles, tablets, televisions etc.

2) Who is the founder of Android?

Andy Rubin.

3) What are the code names of android?

  1. Aestro
  2. Blender
  3. Cupcake
  4. Donut
  5. Eclair
  6. Froyo
  7. Gingerbread
  8. Honycomb
  9. Ice Cream Sandwitch
  10. Jelly Bean
  11. Kitkat
  12. Lollipop
  13. Marshmallow
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4) What are the advantages of android?





5) Does android support other language than java?


6) What are the core building blocks of android?

The core building blocks of android are:

  • Activity
  • View
  • Intent
  • Service
  • Content Provider
  • Fragment etc.
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7) What is activity?


8) What are the life cycle methods of android activity?


  1. onCreate()
  2. onStart()
  3. onResume()
  4. onPause()
  5. onStop()
  6. onRestart()
  7. onDestroy()

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9) What is intent?


  1. Implicit Intent
  2. Explicit Intent

10) What is implicit intent in android?

Implicit intent is used to invoke the system components.

11) What is explicit intent in android?

Explicit intent is used to invoke the activity class.

12) How to call another activity in android?

13) What is service in android?


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14) What is the name of database used in android?

SQLite: An opensource and lightweight relational database for mobile devices.

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15) What is AAPT?

AAPT is an acronym for android asset packaging tool. It handles the packaging process.

16) What is content provider?

Content providers are used to share information between android applications.

17) What is fragment?

Fragment is a part of Activity. By the help of fragments, we can display multiple screens on one activity.

18) What is ADB?

ADB stands for Android Debug Bridge. It is a command line tool that is used to communicate with the emulator instance.

19) What is NDK?

NDK stands for Native Development Kit. By using NDK, you can develop a part of app using native language such as C/C++ to boost the performance.

20) What is ANR?

ANR stands for Application Not Responding. It is a dialog box that appears if the application is no longer responding.

21) What is DDMS?


  1. Port forwarding services
  2. Screen capture
  3. Thread and heap information
  4. Network traffic tracking
  5. Location data spoofing

22) Define Android Architecture?

Android architecture consists of 4 components:

  1. Linux Kernal
  2. Libraries
  3. Android Framework
  4. Android Applications
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23) What is a portable wi-fi hotspot?

The portable wi-fi hotspot is used to share internet connection to other wireless devices.

24) Name the dialog box which are supported by android?

  • Alert Dialog
  • Progress Dialog
  • Date Picker Dialog
  • Time picker Dialog

25) Name some exceptions in android?

  • Inflate Exception
  • Surface.OutOfResourceException
  • SurfaceHolder.BadSurfaceTypeException
  • WindowManager.BadTokenException

26) What are the basic tools used to develop an android app?

  • JDK
  • Eclipse+ADT plugin
  • SDK Tools