onStart, onRestart and onStop

Question

Which life-cycle method will execute when I reopen the app ?

onStart executes when we view the app, onStop executes when we minimize it, Will the onStart method executes again if maximize it?

Answer 1

When you re open the app. OnResume method will be called. See here

Image Source

Answer 2

How about checking it yourself. This can be a good exercise as well. Override all these methods and put individual logs in each of them so you can identify for eg

@Override
protected void onResume() {
    super.onResume();
    Log.e("Activity TAG","On Resume");
}

Check the logcat output and verify this for yourself. Hope it helps.

Answer 3

Since @Mohit Patel mentioned in his comment and posted a photo about it, combined with the @Karan Mer answer, your answer is: Yes, the onStart method executes again if maximize it.

You can prove it like this:

@Override
protected void onResume() {
    super.onResume();
    Log.e("Activity TAG","On Resume");
}

@Override
protected void onStart() {
    super.onResume();
    Log.e("Activity TAG","On start");
}

The lifecycle is the ABC of Android. You should be careful with it. This is the activity lifecycle:

https://developer.android.com/guide/components/images/activity_lifecycle.png

or if you are using fragments:

https://developer.android.com/images/fragment_lifecycle.png