Android - Activity continues running while rotations are going on

Question

In my activity, I have a inner class called A extends AsyncTask. I don't want activity destroys and recreates again when device is rotated. I want it keep running. I have read this link RotationAsync .They use a static class of AsyncTask. I have declared many variables in my activity, so if i use static class , I can not use variables of activity. Is there another way to do like link above without using static class of AsyncTask? Thanks for your answers. Sorry if my english has some mistakes.

Answer 1

You can prevent your Activity to restart using this settings on the Manifest:

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

After doing that, you can manage the changes using this code

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

// Checks the orientation of the screen
if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
    //do something here
} else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
    //do something here
}

}

For more info, you can read http://developer.android.com/guide/topics/resources/runtime-changes.html

Answer 2

To preserve your variables, you can save them into a Bundle and reload the state of your Activity when it is recreated. This should get you started: http://developer.android.com/guide/topics/fundamentals/activities.html#SavingActivityState