How does the OutOfMemory happen? - Android Interview Questions | Android Engineers

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Questions

•How does Garbage collection works?•What is a dangling pointer?•Elaborate Memory Leak?•Explain fragment Lifecycle when it comes to ViewPager and sliding between different fragments.•Difference between FragmentStateAdapter and FragmentStatePagerAdapter.•Difference between Serializable and Parcelable? What are the disadvantages of Serializable?•How you could implement observable SharedPrefs or observable Databases i.e. Observe a certain key/table/query?•How does layout inflation work from xml tags to view references in memory?•What is a Thread, Handler, Looper, and Message Queue?•What are the different methods of concurrency on Android? Can you explain the difference between ExecutorService vs CachedThreadPool vs FixedThreadPool vs AsyncTasks vs HandlerThreads?•How does `ViewModel` instance provide to Activity and Fragment? How does `ViewModelProviderStore` decide when to retain the instance?•How do you inspect and solve the Jank issue? [here](https://developer.android.com/studio/profile/jank-detection)▶How does the OutOfMemory happen?•How do you find memory leaks in Android applications?•What is Doze? What about App Standby?•What does `setContentView` do?•Process of creating a custom view •Deeplink understanding and architecture •Notifications •Difference between Fragment Lifecycle Observer and View Lifecycle Observer.•When should you use a Fragment rather than an Activity?•Explain the Android push notification system.•How LiveData is different from ObservableField?•What is the difference between setValue and postValue in LiveData?•What is process death?•What is ViewModelScope and How does it work internally?

AndroidIntermediate3 min

How does the OutOfMemory happen?

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How do you inspect and solve the Jank issue? [here](https://developer.android.com/studio/profile/jank-detection)

How do you find memory leaks in Android applications?

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Related Questions

How does Garbage collection works?

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Elaborate Memory Leak?

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Explain fragment Lifecycle when it comes to ViewPager and sliding between different fragments.

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