blob: dd4c0a3305533cea0c5dd5c52d6047d6ecfcc391 [file] [log] [blame]
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
package com.android.dialer.util;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.Context;
import android.content.Loader;
import android.os.Bundle;
/**
* A {@link Loader} only used to make use of the {@link android.app.Fragment#setStartDeferred}
* feature from an old-style fragment which doesn't use {@link Loader}s to load data.
*
* This loader never delivers results. A caller fragment must destroy it when deferred fragments
* should be started.
*/
public class EmptyLoader extends Loader<Object> {
public EmptyLoader(Context context) {
super(context);
}
/**
* {@link LoaderCallbacks} which just generates {@link EmptyLoader}. {@link #onLoadFinished}
* and {@link #onLoaderReset} are no-op.
*/
public static class Callback implements LoaderCallbacks<Object> {
private final Context mContext;
public Callback(Context context) {
mContext = context.getApplicationContext();
}
@Override
public Loader<Object> onCreateLoader(int id, Bundle args) {
return new EmptyLoader(mContext);
}
@Override
public void onLoadFinished(Loader<Object> loader, Object data) {
}
@Override
public void onLoaderReset(Loader<Object> loader) {
}
}
}