How to detect orientation change in layout in Android?

android

Solution

Use the `onConfigurationChanged` method of Activity — as explained in the “Handling Runtime Changes” guide from the Android docs:

@Override public void onConfigurationChanged(@NotNull Configuration
newConfig) {
    super.onConfigurationChanged(newConfig);

    // Checks the orientation of the screen
    if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
        Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show();
    } else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
        Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show();
    } }

You also have to edit the appropriate element in your manifest file to include the android:configChanges:

<activity android:name=".MyActivity"
          android:configChanges="orientation|keyboardHidden"
          android:label="@string/app_name">

NOTE: with Android 3.2 (API level 13) or higher, the "screen size" also changes when the device switches between portrait and landscape orientation. Thus, if you want to prevent runtime restarts due to orientation change when developing for API level 13 or higher, you must declare android:configChanges="orientation|screenSize" for API level 13 or higher.

Problem

I just implemented a orientation change feature - e.g. when the layout changes from portrait to landscape (or vice versa). How can I detect when the orientation change event finished. The `OrientationEventListener` didn't work. How can I get notifications about layout orientation change events?

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