Which activity method is called when orientation changes occur?

user_557179 0
Viewed 41618

Which method of the lifecycle is called when orientation changes occur? My application executes the onResume() method or maybe reloads the whole activity because I've set one boolean to check whether it is first run or not. I've read onConfigurationChanged() starts when orientation change occur, is it true? How to handle this?

onresume orientation android-activity android
2 Answers
public class MainActivity extends AppCompatActivity {
private final static String TAG = "AppActivity";

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Log.d(TAG, "onCreate(Bundle) called");
    setContentView(R.layout.activity_main);
}

@Override
public void onStart() {
    super.onStart();
    Log.d(TAG, "onStart() called");
}

@Override
public void onPause() {
    super.onPause();
    Log.d(TAG, "onPause() called");
}

@Override
public void onResume() {
    super.onResume();
    Log.d(TAG, "onResume() called");
}

@Override
public void onStop() {
    super.onStop();
    Log.d(TAG, "onStop() called");
}

@Override
public void onDestroy() {
    super.onDestroy();
    Log.d(TAG, "onDestroy() called");
}

}

1) Try to run your app on your phone and/or emulator and open the Logcat => on top of the window select Verbose.

2) Now try to change the screen orientation (ex. from portrait => landscape mode).

I hope this alternative will give you more insight into the activity lifecycle.

user_75712150
Related