/* * Copyright (C) 2015 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.tv.common; import android.os.Handler; import android.os.Looper; import android.os.Message; import android.support.annotation.NonNull; import java.lang.ref.WeakReference; /** * A Handler that keeps a {@link WeakReference} to an object. * *
Use this to prevent leaking an Activity or other Context while messages are still pending. * When you extend this class you MUST NOT use a non static inner class, or the * containing object will still be leaked. * *
See
* Avoiding memory leaks.
*/
public abstract class WeakHandler If the WeakReference is cleared this method will no longer be called.
*
* @param msg the message to handle
* @param referent the referent. Guaranteed to be non null.
*/
protected abstract void handleMessage(Message msg, @NonNull T referent);
}