On Change Screen Orientation, New Activity Created

I'm relatively new to Android but have made quite a few apps over the past year so forgive me. I know that when you are running an app on a device and change the screen orientation

Solution 1:

In your AndroidManifest.xml add, android:configChanges and this would avoid the activity being re-created on orientation change. I hope your landscape and portrait mode has the same layout.

<activityandroid:label="Your Activity Name"android:configChanges="keyboardHidden|orientation|screenSize"android:name="com.yourpackage">

To add more to this, i would suggest you to look at the onPause() and onResume() methods and if you are playing with Fragments then have a watch on onSaveInstanceState and onRetainInstanceState rather than applying the xml changes as "Activity is destroyed by design."

http://developer.android.com/training/basics/activity-lifecycle/index.html

Solution 2:

If you are worried about losing the value of local variables within your activity... You could use Singleton Pattern for some of those variables. This not a beautiful solution, but could work.