86 lines
2.3 KiB
Java
86 lines
2.3 KiB
Java
/*
|
|
* Copyright (C) 2015 Hippo Seven
|
|
*
|
|
* 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
|
|
* 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.hippo.util;
|
|
|
|
import android.util.SparseArray;
|
|
|
|
import java.util.HashSet;
|
|
import java.util.Set;
|
|
|
|
public class Messenger {
|
|
|
|
private IntIdGenerator mIdGenerator;
|
|
|
|
private SparseArray<Set<Receiver>> mReceiverSetMap;
|
|
|
|
private static Messenger sInstance;
|
|
|
|
public static Messenger getInstance() {
|
|
if (sInstance == null) {
|
|
sInstance = new Messenger();
|
|
}
|
|
return sInstance;
|
|
}
|
|
|
|
private Messenger() {
|
|
mIdGenerator = IntIdGenerator.create();
|
|
mReceiverSetMap = new SparseArray<>();
|
|
}
|
|
|
|
public int newId() {
|
|
return mIdGenerator.nextId();
|
|
}
|
|
|
|
public void notify(final int id, final Object obj) {
|
|
// Make sure do it in UI thread
|
|
AppHandler.getInstance().post(new Runnable() {
|
|
@Override
|
|
public void run() {
|
|
Set<Receiver> receiverSet = mReceiverSetMap.get(id);
|
|
if (receiverSet != null) {
|
|
for (Receiver receiver : receiverSet) {
|
|
receiver.onReceive(id, obj);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
public void register(int id, Receiver receiver) {
|
|
Set<Receiver> receiverSet = mReceiverSetMap.get(id);
|
|
if (receiverSet == null) {
|
|
receiverSet = new HashSet<>();
|
|
mReceiverSetMap.put(id, receiverSet);
|
|
}
|
|
|
|
receiverSet.add(receiver);
|
|
}
|
|
|
|
public void unregister(int id, Receiver receiver) {
|
|
Set<Receiver> receiverSet = mReceiverSetMap.get(id);
|
|
if (receiverSet != null) {
|
|
receiverSet.remove(receiver);
|
|
if (receiverSet.isEmpty()) {
|
|
mReceiverSetMap.remove(id);
|
|
}
|
|
}
|
|
}
|
|
|
|
public interface Receiver {
|
|
void onReceive(final int id, final Object obj);
|
|
}
|
|
}
|