/*
* Copyright 2011 Google Inc.
*
* 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 se.alexanderblom.delicious.util;
import android.os.Bundle;
import android.os.Handler;
import android.os.ResultReceiver;
import android.util.Log;
/**
* Proxy {@link ResultReceiver} that offers a listener interface that can be
* detached. Useful for when sending callbacks to a {@link Service} where a
* listening {@link Activity} can be swapped out during configuration changes.
*/
public class DetachableResultReceiver extends ResultReceiver {
private static final String TAG = "DetachableResultReceiver";
private Receiver mReceiver;
public DetachableResultReceiver(Handler handler) {
super(handler);
}
public void clearReceiver() {
mReceiver = null;
}
public void setReceiver(Receiver receiver) {
mReceiver = receiver;
}
public interface Receiver {
public void onReceiveResult(int resultCode, Bundle resultData);
}
@Override
protected void onReceiveResult(int resultCode, Bundle resultData) {
if (mReceiver != null) {
mReceiver.onReceiveResult(resultCode, resultData);
} else {
Log.w(TAG, "Dropping result on floor for code " + resultCode + ": "
+ resultData.toString());
}
}
}