What is the difference between onPause() and onStop()() of Android Activites?

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From android doc here http://developer.android.com/reference/android/app/Activity.html, it said 'Activity comes into foreground' will call onPause(), and 'Activity is no longer visible' will call onStop().

Isn't 'Activity comes into foreground' same as 'Activity is no longer visible'? Can you please tell me what is the difference between them?


No, if some activity comes into foreground, that doesn't necessarily mean that the other activity is completely invisible. Consider the following case:

Here we see both activities at the same time. The first activity with the fields is obscured by another activity, and the user can no longer interact with it. However, it is still visible with all the resulting consequences.

That leaves a question which activity is considered fully opaque and covering the whole screen and which isn't. This decision is based on the window containing the activity. If the window has a flag windowIsFloating or windowIsTranslucent, then it is considered that the activity doesn't make the underlying stuff invisible, otherwise it does and will cause onStop() to be called. The relevant code can be found in com.android.server.am.ActivityRecord:

fullscreen = ent != null && !ent.array.getBoolean(
        com.android.internal.R.styleable.Window_windowIsFloating, false)
        && !ent.array.getBoolean(
        com.android.internal.R.styleable.Window_windowIsTranslucent, false);

What is the difference between onPause() and onStop() of Android , When onDestroy () is called before onPause () and onStop () in an Android application? If you can still see any part of it (Activity coming to foreground either doesn’t occupy the whole screen, or it is somewhat transparent), onPause() will be called. If you cannot see any part of it, onStop() will be called. A dialog**, for example, may not cover the entire previous Activity, and this would be a time for onPause() to be called.


If you can still see any part of it (Activity coming to foreground either doesn't occupy the whole screen, or it is somewhat transparent), onPause() will be called. If you cannot see any part of it, onStop() will be called.

A dialog**, for example, may not cover the entire previous Activity, and this would be a time for onPause() to be called.

**I am not referring to an Android Dialog here, rather a conceptual idea of something that pops up and only obscures part of the user screen. This note was added to clarify based on a comment from @GMsoF below

Android scenario where ondestroy() is called without onpause() or , () is called when the activity that was hidden comes back to view on the screen. The Big Difference Between onPause() and onStop() Shortly I had some unexpected behaviour while testing the android version of the airTracker. While debugging this issue I realized that there is a big difference between the onStop() and the onPause() method provided by the Activty class.


Being in the foreground means that the activity has input focus. For instance, an activity can be visible but partially obscured by a dialog that has focus. In that case, onPause() will be called, but not onStop(). When the dialog goes away, the activity's onResume() method will be called (but not onStart()).

Android application and activity life cycle - Tutorial, it said 'Activity comes into foreground' will call onPause() , and 'Activity is no longer visible' will call Can you please tell me what is the difference between them? The relevant code can be found in com.android.server.am. Difference between onPause(), onStop() and onDestroy() onPause() is called when an activity is about to lose focus. onStop() is called when the activity is has already lost the focus and it is no longer in the screen.


Practically, one should consider the difference between "onPause()" and "onPause() + onStop()".

Whenever some new activity occurs and occupies some partial space of the Screen. So your previously running activity is still visible to some extent. In this Case, the previously running activity is not pushed to Back Stack. So, here only onPause() method is called.

On other hands, if some new Activity occurs and occupies the full screen so that your previously running activity is disappeared. In this Case, your previously running activity is moved to Back Stack. Here, onPause() + onStop() are called.

To Summaries-

onPause()- Screen is partially covered by other new activity. The Activity is not moved to Back Stack.

onPause() + onStop()- Screen is fully covered by other new activity. The Activity is moved to Back Stack.

Know more about- Back Stack.

Android For Beginners: Part II, The Big Difference Between onPause() and onStop() Shortly I had some unexpected behaviour while testing the android version of the airTracker. Only one activity can be assigned to the callback that is called if new  onCreate() method gets called when activity gets created, and its called only once in whole Activity life cycle. where as onStart() is called when activity is stopped I mean it has gone to background and its onStop() method is called by the os. onStart() may be called multiple times in Activity life cycle. More details here.


In concise words:

onStop() of previous activity life-cycle method is invoked when another activity is shown. When you have Dialogue on the top of activity, there onPause() is invoked.

Note: Activities are those components which fill your entire screen.

Note: Dialogues are not Activity as they don't completely fill the screen.

How to use onResume()?, android Difference between onPause and onStop()?. Question When the dialog goes away, the activity's onResume() method will be called (but not onStart()). onPause: Called when another activity comes into the foreground. onStop: Called when that other activity is completely visible. onResume: Called when your activity is navigated back to from the onPause state. Maybe your app was already in the onStop state, so then it would call onRestart.


Understand the Activity Lifecycle, Which Lifecycle method will get called when a dialog appears in an activiy onStart() } override fun onStop() { Log.d("lifecycle-test", "Main7Activity - onStop") The onPause() is called when your activity is no longer at the top of the activity stack. In Android 7.0 (API level 24) or higher, multiple apps run in  Using onStop() instead of onPause() ensures that UI-related work continues, even when the user is viewing your activity in multi-window mode. You should also use onStop() to perform relatively CPU-intensive shutdown operations.


Difference between onPause and onStop(), Activity is the base class of an Android Activity (package android.app). Difference between “onPause()” and “onPause() + onStop()”. Once onPause() finishes executing, the next callback is either onStop() or onResume(), depending on what happens after the activity enters the Paused state. onStop() The system calls onStop() when the activity is no longer visible to the user.


The Big Difference Between onPause() and onStop(), When the system calls onPause() for your activity, it technically means your activity should instead perform heavy-load shutdown operations during onStop​() ). Launched an English app featuring 2000 mostly asked english words in all Competitive Exams. #2kenglish Download Now, It's Free