Generic implementation of AsyncTaskLoader. See http://developer.android.com/reference/android/content/AsyncTaskLoader.html

AsyncLoader.java

import android.content.Context;
import android.support.v4.content.AsyncTaskLoader;

public abstract class AsyncLoader<T> extends AsyncTaskLoader<T> {
    private T mResult;

    public AsyncLoader(Context context) {
        super(context);
    }

    @Override
    public void deliverResult(T result) {
        if (isReset()) {
            return;
        }
        mResult = result;
        if (isStarted()) {
            super.deliverResult(result);
        }
    }

    @Override
    protected void onStartLoading() {
        if (mResult != null) {
            deliverResult(mResult);
        }
        if (takeContentChanged() || mResult == null) {
            forceLoad();
        }
    }

    @Override
    protected void onStopLoading() {
        cancelLoad();
    }

    @Override
    protected void onReset() {
        super.onReset();
        onStopLoading();
        mResult = null;
    }
}