Preventing destroying the activity when changes made by rotation of the device, use
android:configChanges="orientation"
Example:
<activity
android:configChanges="orientation"
android:name=".QuizStartActivity"
android:label="@string/title_activity_quiz_start" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
