Activity to restore the safe Loaders behavior of support libraries < 24.0.0 in recent versions

SafeLoadersFragmentActivity.java

package android.support.v4.app;

/**
 * Inherit from this class to prevent Loaders from being forcefully retained during a configuration change.
 * Forceful retain currently causes all stopped Loaders to briefly start, causing unexpected issues for detached fragments.
 * This restores the Loaders behavior of support libraries < 24.0.0
 *
 * @author Christophe Beyls
 * @see <a href="https://issuetracker.google.com/issues/37916599">Bug report</a>
 */
public class SafeLoadersFragmentActivity extends FragmentActivity {

	@Override
	void doReallyStop(boolean retaining) {
		// Ensure the Activity Loaders are only stopped once and never restarted during stop
		if (!mReallyStopped) {
			super.doReallyStop(retaining);
		}
	}

	@Override
	public Object onRetainCustomNonConfigurationInstance() {
		// All loaders are already stopped or retained at that point, but calling this method again
		// sets a flag to prevent them from being forcefully retained during the next phase
		mFragments.doLoaderStop(false);
		return super.onRetainCustomNonConfigurationInstance();
	}

	/**
	 * Hack to force update the LoaderManager in RETAINED fragments
	 * in order to avoid memory leaks and Loaders malfunction. Call this in Fragment.onAttach().
	 */
	public static void updateLoaderManager(Fragment fragment) {
		fragment.mLoaderManager = null;
		fragment.mCheckedForLoaderManager = false;
	}
}

Deprecated. Please migrate to LiveData and ViewModel from architecture components.