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When should super.onResume(); be called, on the first line of onResume() or on the last line?
protected void onResume() { Log.i(MY_DEBUG_TAG, "On Resume"); super.onResume(); displayDashboard(); } 
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onResume() will never be called before onCreate() . Show activity on this post. onResume() will always be called when the activity goes into foreground, but it will never be executed before onCreate() .
An activity can frequently transition in and out of the foreground—for example, onPause() is called when the device goes to sleep or when a dialog appears. Because this state can transition often, the code in these two methods should be fairly lightweight in order to avoid slow transitions that make the user wait.
onResume() When the activity enters the Resumed state, it comes to the foreground, and then the system invokes the onResume() callback. This is the state in which the app interacts with the user.
Android’s source code can tell us everything. If you check the Activity super class you can find the following lines:
protected void onResume() { if (DEBUG_LIFECYCLE) Slog.v(TAG, "onResume " + this); getApplication().dispatchActivityResumed(this); mCalled = true; } On this basis, no matter before or after it is called.
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