Android Interview Questions

Briefly summarize about the Andriod projects you have finished? Your role?
Summarize your development experience before working as an Andriod Developer?
How was your previous development experience useful for your work as an Andriod Developer?
Talk about your main role in the projects you have finished?
What were main technical issues faced by your Andriod tasks? How were they sorted? What were other alternative solutions suggested or considered?
What was most challenging aspect of any Andriod projects you have worked so far?
What is Andriod APK package?
What is Andriod Manifest file? Name common tags?
What are the main components of Andriod UI?
How do you create UI with and without using XML file? Give simple examples.
What is the difference between linear layout, relative layout, table layout, frame layout and grid layout?
How will you create Splash Screen for your andriod application?
What is View and ViewGroup?
What is a progress bar? How is it created?
How you debug your Andriod Applications? Which ones are your favourite tools?
How is JUnit testing for Andriod implemented? Describe based on your experience.
How much you are familiar with Robotium and Roboelectric frameworks for testing Andriod applications?
What are two main types of Andriod Services ? Give examples.
How will you set up Started Service and Bind Service in your Andriod application?
What is difference between local and remote service in Andriod?
How do you define Action bar?
What is context in Andriod?
What is theme in Andriod?
What are fragments? How are they related to lifecycle of activities? Give examples.
What is the difference in implementing fragments for Andriod Version 3.0 and earlier versions?
Do a fragment have to be instantiated each time, within the same activity? Explain.
What is Broadcast receiver? Give examples.
What is the difference between Broadcast receiver and Service?
How you register Broadcast receiver statically (in XML file) or dynamically (programmatically) ? When you prefer registering statically and when dynamically?
What is the life cycle of Activity, Service and Broadcast receiver?
Is there a limit on the number of Broadcast receivers an application can have?
What is intent? How many types of it? How is it declared? Give examples.
What is intent filter? How is it declared? Give examples.
What is the intent filter of the main screen which launches your android applications main screen?
What is pending intent?Give some example?
What is sticky intent?Give some example?
How do you define intent to go for one activity to another?
How do you define intent to open a service from activity?
How do you define intent to open web url from an activity?
How do you declare action bar in manifest file?
What are Push Notifications?
How do you declare Push Notifications in the manifest file?
How are Web Services implemented in Andriod?
How is Java Web Service called from inside Andriod application?
How is asp.net Web service called from inside Andriod application?
When will you prefer JSON parsing and when XML parsing in Andriod?
What are adapters? What is the difference between Array adaptor and Cursor adaptor?
How do you create Array Adapter and Cursor Adapter in Andriod?
Name some of the other Andriod Adaptors you have used or are familiar with?
What is Adapter View?
What are Content Providers? When they are used in Andriod applications? When are they not necessary?
What are the data storage options in Andriod?
Name and briefly explain different types of notifications in Andriod?
What is SQLite DB? How do you query this DB within an Andriod application? What are other common DB options you can have within and outside an Andriod application?
What is difference between px, dp, dip, and dpi? When will you use sp?
How strong you are in Java programming? Which Java Frameworks you are familiar with?
How is Andriod Java differ from Java?
In Java every program starts from the main method. Why is there no main method in Andriod Java?
What are common exceptions in Andriod programming?
What computer languages other then Java, you can currently use to build Andriod applications? Which one you have used or can work with?
What is Andriod NDK?
How to execute a thread in Andriod?
How is multithreading used in Andriod?
What are two standard ways of implementing threads in Andriod?
By default an Andriod Application will have how many threads?
How to set priority of threads in Andriod?
How to update User Interface thread?
Is Andriod toolkit thread- safe? How does the answer impact running a separate thread to update UI?
What is the default thread of Broadcast receiver?
How to create a service with multiple threads in it?
Is it possible to create a service without any thread?
When is Asyntask used in Andriod?
Compare Handler and Asyntask usage for the UI update?
What are the main advantages of using Asyntask?
Any disadvantages for Asyntask ? What are other alternatives?
What is a worker thread?
What is your knowledge and experience in Web Development?
How much you know about HTML, CSS and JavaScript?
What do you know about jQuery?
What is AQuery? How you can use it in Andriod development?
What is your experience and knowledge in HTML5?
How HTML5 can be used to make Android apps?
How will you use WebView to display a website content in an Andriod application?
How fluent you are in using Eclipse?
Name few commonly used keyboard short cuts for Eclipse?
Which Eclipse prespective you will mostly use for Andriod projects?
How often you use Andriod Studio ?
How will you compaire Andriod Studio with Eclipse?
What are the different screen sizes available in Andriod?
Name some of the recent versions of Andriod?
What are the versions of Andriod you have worked with?
How will you implement fragments before and after Andriod version 3.0 ?
How will you define Action bar before and after Andriod version 3.0 ?
What is the most recent version of Andriod? What are the new features in it?
What are the various configuration changes which can cause application to destroy and restart?
When a service is destroyed due to some configuration change, how does it get restored?
After an application is stopped, how to stop a service which should not be running then still in the background?
What are the Andriod best security practices?
What are the commonly used debugging tools?
Give examples of how will you setup simple Junit test cases for testing UI of Andriod?
Any particular pitfalls of Asyntask?
If you don't use Asyntask for long term operations, what are the alternatives? When will you prefer them over Asyntask?
What is difference between REST and SOAP webservices? Which one you mostly use in Andriod and why?
What is difference between JSON and XML parsing? Any particular advantages of one over another while using for an Andriod application?
How will you setup HTTP connection for connecting with a Webservice?
Name some of the best user interface design practices?
What is the most commonly used UI layout and why?
What are the best practices for designing UI for multiple screen sizes?
How will you design UI for different screen densities?
How does Andriod support applications for different languages?
How does Andriod support applications for different screen sizes?
How does Andriod support various platform versions?
How will you support best features and functionalities across various Andriod versions?
What are the best security practises for Andriod?
How will you create a dynamic and multi-plane user interface for Andriod?
What is AIDL?
What is ADB?
How does the Andriod system implements the principle of least privilege?
Can two apps share same Linux user ID?
What are bluetooth services for Andriod?
What is the default thread when an Andriod application is initiated?
What method of asyntask executes on a worker thread?
What is the single thread model to update the UI?
How is multi-threading implemented in Andriod?
How will you use handlers to update the UI?
Which thread Service use?
Can Asyntask be used with Service?
What are Loaders? Give examples of their usage for an Andriod application?
How do you make your app location-aware?
What is purpose of using <support-screens> element into the AndroidManifest.xml file? Does automatic "compatibility mode" for adjusting to various screen sizes remains still valid?
Compare use of LinearLayout and RelativeLayout for designing a UI?
How MVC design pattern is implemented for Andriod UI?
What is the difference between HTTPGet and HTTPPost call with HTTPClient in Andriod? Which method you will use to send an email and which one to fetch some values from a website?
What are some of the common exceptions while using HTTP requests? How can they be handled?
What are some of the most common causes of NullPointerException?
What is OutOfMemory Exception and InflateException?
What is the required size in pixels for google play store app icon?
What are the common image formats andriod supports?