com.yy.androidlib.util.notification.Notification Maven / Gradle / Ivy
package com.yy.androidlib.util.notification;
import android.os.Handler;
import android.util.Log;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
public class Notification implements InvocationHandler {
private Map observers;
private Handler mainHandler;
private T observerProxy = null;
private Class callback;
public Notification(Class callback, Handler handler) {
this.callback = callback;
this.mainHandler = handler;
this.observers = new ConcurrentHashMap<>();
}
public Object invoke(Object proxy, final Method method, final Object[] args) {
mainHandler.post(new Runnable() {
public void run() {
doInvoke(method, args);
}
});
return null;
}
private void doInvoke(Method method, Object[] args) {
for (Object observer : observers.keySet()) {
try {
method.invoke(observer, args);
} catch (Exception e) {
Log.e(NotificationCenter.TAG, "invoke error, method: " + method.getName(), e);
}
}
}
public T getObserver() {
if (observerProxy == null) {
observerProxy = (T) Proxy.newProxyInstance(callback.getClassLoader(), new Class[]{callback}, this);
}
return observerProxy;
}
public Map getObservers() {
return observers;
}
}