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Frequently Asked Android interview questions and answers for freshers Page 8

(#M40158036) ANDROID QUESTION Keep an EYE

Is it possible to have fragments without UI, in android?

Options
1) Fragment will never have any UI.
2) Fragment generally will contribute its UI by using its own layout, But it might not have UI in some cases, as it is not mandatory
3) Both option 1 & are right.
4) none of the above are true, Because fragments should always have its own layout and contribute its UI.

Asked In Android Ashish (8 years ago)

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(#M40157963) ANDROID QUESTION Keep an EYE

What is the difference between intent, sticky intent, and pending intent?

Options
1) intent - is a message passing mechanism between components of android; Sticky Intent - Sticks with android, for future broad cast listeners; Pending Intent - Will be used when some one wants to fire an intent in future.
2) intent - is a message passing mechanism between components of android except for Content Provider; Sticky Intent - Sticks with android, for future broad cast listeners; Pending Intent - Will be used when some one wants to fire an intent in future.
3) intent - is a message passing mechanism between components of android except for content Provider;
Sticky Intent - Sticks with android, for future broad cast listeners; Pending Intent - Will be used when some one wants to fire an intent in future and may be at that time that app is not alive.
4) same as 3rd option, but sticky and pending intent are same.

Asked In Android Ashish (8 years ago)

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(#M40157957) ANDROID QUESTION Keep an EYE

How many manifest files will be there in an android application?

Options
1) Maximum one is allowed
2) It can have multiple manifest files
3) 1 and 2, both are correct
4) 1 and 2 both are wrong

Asked In Android Ashish (8 years ago)

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(#M40158021) ANDROID QUESTION Keep an EYE

What will happen if a sensor is not unregistered, after using it for some time?

Options
1) Android will automatically switch off that sensor and stops it.
2) Nothing will happen, but that sensor will keep running in background, with this no side-effect occurs.
3)that sensor will keep running in the background, and consumes lot of battery power un-necessarily.
4) Program will crash

Asked In Android Ashish (8 years ago)

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(#M40158006) ANDROID QUESTION Keep an EYE

Broadcast receiver runs in which thread by default?

Options
1) Main Thread
2) background thread
3) no thread
4) none of these

Asked In Android Ashish (8 years ago)

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(#M40158007) ANDROID QUESTION Keep an EYE

What is the difference between broadcast receiver and a service?

Options
1) BroadReceiver - is like gateway for other components, can do small back ground functionality with in 10 seconds. Services - can do long running operation in the background with out having UI, and no time limit for it.
2) Service - is like gateway for other components, can do small background functionality with in 10 seconds. BroadcastReceiver - can do long running operation in the background with out having UI, and no time limit for it.
3) Option 1 is right, but both receiver and service both can interact with UI if they want to. Broadcast Receivers have time limit of 10 seconds, and they respond to broadcasted messages.
4) Option 1 is right, but a service can interact with UI if it wants. Its not mandatory that service should not have UI.

Asked In Android Ashish (8 years ago)

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(#M40158001) ANDROID QUESTION Keep an EYE

What is the difference between thread and handler thread, in android?

Options
1) Thread will have looper and Message Queue. Default this looper will be prepared to handle incoming messages from other threads.
2) Handler thread will have looper and MessageQueue, but looper is prepared to handle incoming message.
3) Both are same. No difference, but HandlerThread is sub class of Thread class.
4) Both are same. No difference, But HandlerThread is super class of Thread class.

Asked In Android Ashish (8 years ago)

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(#M40158011) ANDROID QUESTION Keep an EYE

What is the purpose of SQLiteOpentHelper?
Options
1) A helper class to manage database creation, version management, and inserting/modifying/deleting/updating table data without loosing state of the previous data.
2)A helper class to insert/update/delete data into tables with loosing state of the previous data.
3)A helper class to manage database creation, upgrading and version management without loosing state of the previous data.
4) all of the above

Asked In Android Ashish (8 years ago)

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(#M40158028) ANDROID QUESTION Keep an EYE

What is the tool to convert images to 9 patch image? where it will be located?

Options
1) draw9patch is the tool name, it is located in android-sdk/platform-tools.
2) draw9patch is the tool name, it is located in android-sdk/tools
3)9patch is the tool name, it is located in android-sdk/platform-tools
4)9patch is the tool name, it is located in android-sdk/tools

Asked In Android Ashish (8 years ago)

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(#M40158004) ANDROID QUESTION Keep an EYE

Main thread will have a looper. True or false?

Options
1) yes every thread by default will have looper
2) no only handler threads will have loopers
3) only handler threads will have loopers, but we can prepare normal threads looper also.
4) only main thread will have looper

Asked In Android Ashish (8 years ago)

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