/**
 * 客戶端控制介面
 */
public class MainActivity extends Activity {

 public static final String TAG = "MainActivity";

 // 服務端 AndroidManifest.xml中的intent-filter action宣告的字串
 public static final String ACTION = "com.example.playerserver.PlayerService";

 private Button playbtn, stopbtn;

 private IRemoteService mService;

 private boolean isBinded = false;

 private ServiceConnection conn = new ServiceConnection() {

  @Override
  public void onServiceDisconnected(ComponentName name) {
   isBinded = false;
   mService = null;
  }

  @Override
  public void onServiceConnected(ComponentName name, IBinder service) {
   mService = IRemoteService.Stub.asInterface(service);
   isBinded = true;
  }
 };
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        doBind();
        initViews();
    }
    private void initViews() {
     playbtn = (Button) findViewById(R.id.button1);
        stopbtn = (Button) findViewById(R.id.button2);
        playbtn.setOnClickListener(clickListener);
        stopbtn.setOnClickListener(clickListener);
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
    @Override
    protected void onDestroy() {
  doUnbind();
     super.onDestroy();
    }
    public void doBind() {
     Intent intent = new Intent(ACTION);
     bindService(intent, conn, Context.BIND_AUTO_CREATE);
    }
    public void doUnbind() {
     if (isBinded) {
      unbindService(conn);
         mService = null;
         isBinded = false;
     }

    }
    private OnClickListener clickListener = new OnClickListener() {

  @Override
  public void onClick(View v) {
   if (v.getId() == playbtn.getId()) {
    // play
    Log.i(TAG,"play button clicked");
    try {
     mService.play();
    } catch (RemoteException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
    }
   } else {
    // stop
    Log.i(TAG,"stop button clicked");
    try {
     mService.stop();
    } catch (RemoteException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
    }
   }
  }
 };
}