MainActivity
package com.kevin.test;
import com.kevin.test.R;
import com.kevin.test.ControlMusicService;
import com.kevin.test.IMusicControlService;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ServiceConnection;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
import android.view.View;
import android.widget.ImageButton;
import android.widget.Toast;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
//这个是一个普通的接口,对于程序员来说
private ImageButton play,pause,stop;
private MediaPlayer mp;
ActivityReceiver activityreceiver;
//private int et=0;
public IMusicControlService iMusicControlService;
//BroadcastReceiver recevier;
//ActivityReceiver activityreceiver;
//public static final String UPDATE_ACTION="com.kevin.test.update_action";
//private static final String BC_ACTION = "com.kevin.test.action.BC_ACTION1";
//通过执行这个方法给接口赋实现类 serviceConnection是专门用来连接服务的
//调用后台的服务，貌似如果不存在就启动，存在就调用
private final ServiceConnection serviceConnection =new ServiceConnection(){
//第一次链接的时候会调用这个方法
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
Log.i("kevin", "frist conn 1Myfi");
iMusicControlService =IMusicControlService.Stub.asInterface(service);
}
//service断开的时候会调用这个方法
@Override
public void onServiceDisconnected(ComponentName name) {
Log.i("kevin", "disconn");
iMusicControlService = null;
}
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// mp = MediaPlayer.create(this, R.raw.big);
Intent intent = new Intent();
intent.setClass(this, ControlMusicService.class);
boolean value = true;
// intent.putExtra("tag", et);
//把serviceConnection绑定到 ControlMusicService上
//估计在绑定的时候就会创建后台service和获取service返回的对象
bindService(intent,serviceConnection,Context.BIND_AUTO_CREATE);
IntentFilter filter = new IntentFilter();
filter.addAction(ControlMusicService.UPDATE_BUTTON);
activityreceiver = new ActivityReceiver();
registerReceiver(activityreceiver, filter);
Log.i("kevin", "Bind service...");
play = (ImageButton)findViewById(R.id.play);
pause = (ImageButton)findViewById(R.id.pause);
pause.setEnabled(false);
// stop = (ImageButton)findViewById(R.id.stop);
// setup();
// recevier = new BroadcastReceiver() {
//
// @Override
// public void onReceive(Context context, Intent intent) {
// // TODO Auto-generated method stub
// Log.i("kevin","Receive Broadcast");
// play.setEnabled(true);
// }
// };
play.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
try {
Log.i("kevin", "playmusic");
//调用接口的方法
play.setEnabled(false);
pause.setEnabled(true);
//stop.setEnabled(false);
iMusicControlService.playMusic();
// new Thread()
// {
// @Override
// public void run()
// {
// while(true){
// try {
// Thread.sleep(5000);
// }catch(InterruptedException e)
// {
// }
// try {
// if(iMusicControlService.Musicdone())
// {Log.i("kevin","music done");
// // play.setEnabled(true);
// }
// else Log.i("kevin","music undone");
// } catch (RemoteException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
// }
// }
// }.start();
}catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
pause.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
try {
Log.i("kevin", "pausemusic");
//调用接口的方法
play.setEnabled(true);
pause.setEnabled(false);
//stop.setEnabled(true);
iMusicControlService.pauseMusic();
} catch (RemoteException e) {
e.printStackTrace();
}
}
});
// stop.setOnClickListener(new View.OnClickListener() {
// public void onClick(View view) {
// try {
// Log.d("kevin", "stopmusic");
// //调用接口的方法
// play.setEnabled(true);
// pause.setEnabled(false);
// stop.setEnabled(false);
// iMusicControlService.stopMusic();
//
//
// } catch (RemoteException e) {
// e.printStackTrace();
// }
// }
// });
//
}
public void onStop(){
super.onStop();
Log.i("kevin","stopmusic");
//this.finish();
}
public class ActivityReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
Log.i("kevin", "msg:getaction");
String action = intent.getAction();
if (action.equals(ControlMusicService.UPDATE_BUTTON)) {
//从MusicService接收广播消息，弹出Toast
String msg = intent.getStringExtra("msg");
Toast.makeText(MainActivity.this, msg, Toast.LENGTH_SHORT)
.show();
play.setEnabled(true);
pause.setEnabled(false);
}
}
}
// @Override
// public void onCompletion(MediaPlayer mplayer) {
// // TODO Auto-generated method stub
// et=1;
// }
// @Override
// public void onDestroy() {
// super.onDestroy();
// if (stop.isEnabled()) {
// Log.i("kevin", "msg:stop onDestroy");
// stop();
// }
// }
//
// public void onCompletion(MediaPlayer mp) {
// stop();
// }
//
private void play() {
mp.start();
play.setEnabled(false);
pause.setEnabled(true);
stop.setEnabled(true);
}
// private void stop() {
// mp.stop();
// pause.setEnabled(false);
// stop.setEnabled(false);
//
// try {
// mp.prepare();
// mp.seekTo(0);
// play.setEnabled(true);
// }
// catch (Throwable t) {
// error(t);
// }
// }
//
private void pause() {
mp.pause();
play.setEnabled(true);
pause.setEnabled(false);
stop.setEnabled(true);
}
// private void loadClip() {
// try {
// mp=MediaPlayer.create(this, R.raw.big);
// //mp.setOnCompletionListener(this);
// }
// catch (Throwable t) {
// error(t);
// }
// }
//
// private void setup() {
// loadClip();
// play.setEnabled(true);
// pause.setEnabled(false);
// stop.setEnabled(false);
// }
//
// private void error(Throwable t) {
// AlertDialog.Builder builder=new AlertDialog.Builder(this);
// builder
// .setTitle("报错啦!")
// .setMessage(t.toString())
// .setPositiveButton("确定", null)
// .show();
// }
}