Keep Activity data when UI screen rotate.

If you want to keep data doesn't change when mobile screen rotate. You can modify Android.xml and override onConfigurationChanged in activity.

1. Modify AndroidManifest.xml

<activity android:name=".Magazine">
</activity>

Become to

<activity android:name=".Magazine"
  android:configChanges="orientation|keyboard">
</activity>

1. Override onConfigurationChanged method in Actvity

public void onConfigurationChanged(Configuration newConfig) {
  // TODO Auto-generated method stub
  super.onConfigurationChanged(newConfig);

}