This sample project explains the activity lifecycle in detail. To navigate transitions between stages of the activity lifecycle, the Activity class provides a core set of six callbacks: onCreate(), onStart(), onResume(), onPause(), onStop(), and onDestroy(). The system invokes each of these callbacks as an activity enters a new state.
Understanding the Activity lifecycle state in android java.
App to show how activity lifecycle works. Android Studio
Sample application contains two activity for explain about ACTIVITY-LIFECYCLE CONCEPTS
Android app to study about activities, the android activity lifecycle, Intents (Both explicit and implicit),
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