Service+Broadcast socket更新图片显示

Service+Broadcast socket更新图片显示

首先在Service文件中，建立socket连接，以及相应的输入流，并完成广播的发送：

public class MyService extends Service {private ServerSocket serverSocket;private Socket socket;private InputStream inputStream;public int onStartCommand(final Intent intent, int flags, int startId) {new Thread(new Runnable() {@Overridepublic void run() {try {serverSocket = new ServerSocket(9600);socket = serverSocket.accept();inputStream = socket.getInputStream();int size = 65000;byte[] bt = new byte[size];while(true) {Intent pictureIntent = new Intent();pictureIntent.putExtra("picture_car",bt);pictureIntent.setAction("com.melo.hurryup.Myservice_Picture");sendBroadcast(pictureIntent);Thread.sleep(80);}}catch (Exception e) {e.printStackTrace();Log.i("test","连接失败");Toast.makeText(getApplicationContext(), "无法连接", Toast.LENGTH_LONG).show();}}}).start();

在Activity中完成BroadcastReceiver的注册，并建立一个新的类继承BroadcastReceiver，在这个继承类中接收传输的byte数据，并进行Bitmap处理，以及赋给imageview，实现图片的更新。

public class MainActivity extends AppCompatActivity  {mTimeBroadcast = new MyTimeBroadcast(); mTimeBroadcast = new MyTimeBroadcast();IntentFilter filter1 = new IntentFilter();filter1.addAction("com.melo.hurryup.Myservice_Picture");registerReceiver(mTimeBroadcast, filter1);public class MyTimeBroadcast extends BroadcastReceiver {@Overridepublic void onReceive(Context context, Intent intent) {byte[] get_data = intent.getByteArrayExtra("picture_car");Bitmap bitmap = BitmapFactory.decodeByteArray(get_data,0,65000);image1.setImageBitmap(bitmap);}}
}