Android应用源码之18.消息处理详解-IT计算机-毕业设计.zip

package com.szy.handler.service; import android.app.Service; import android.content.Intent; import android.os.Handler; import android.os.IBinder; import android.os.Looper; import android.os.Message; import android.util.Log; public class ExampleService extends Service { private static final int COOLSZY=1; private static final int KUKA=2; private static final String TAG="ExampleService"; private ServiceHandler handler; private class ServiceHandler extends Handler { public ServiceHandler(Looper looper) { super(looper); } @Override public void handleMessage(Message msg) { switch (msg.what) { case COOLSZY: Log.i(TAG, "handlerMessage-->"+msg.obj); break; case KUKA: Log.i(TAG, "handlerMessage-->"+msg.obj); break; default: break; } stopSelf(msg.arg1); } } @Override public void onCreate() { Log.i(TAG, "ExampleService-->onCreate()"); Looper looper=Looper.getMainLooper(); handler=new ServiceHandler(looper); } @Override public int onStartCommand(Intent intent, int flags, int startId) { Log.i(TAG, "ExampleService-->onStartCommand()"); Message msg=handler.obtainMessage(); msg.what=KUKA; msg.arg1=startId; msg.obj="kuka"; //handler.sendMessage(msg)-->handler.sendMessageDelayed(msg, 0);-->handler.sendMessageAtTime()-->queue.enqueueMessage( handler.sendMessage(msg); return START_STICKY; } @Override public void onDestroy() { Log.i(TAG, "ExampleService-->onDestory()"); } @Override public IBinder onBind(Intent intent) { return null; } }