Calling the Interface Function for Starting the Engine

Application Scenario

Start the video stream engine to receive and render images of the cloud phone.

Prerequisites

• The video stream engine has been created and initialized.
• The logic thread has been started.
• The SurfaceView control has been initialized.

Development Process

1. Record the width and height in the SurfaceView control callback function and start the connection thread.
2. Call the function for starting the video stream engine in the connection thread.

Encoding Instance

public class Activity implements BaseActivity {
    private VmiSurfaceView surfaceView;
    private Boolean newlyCreated = true;
    private int guestWidth = 1080;
    private int guestHeight = 1920;
    DisplayMetrics metric = new DisplayMetrics();

    protected void onCreate(Bundle savedInstanceState) {
        WindowManager wm = (WindowManager) getApplicationContext().getSystemService(WINDOW_SERVICE);
        wm.getDefaultDisplay().getRealMetrics(metric);
        Log.i(TAG, "width pixels:" + metric.widthPixels + ", height pixels:" + metric.heightPixels
            + ",densityDpi:" + metric.densityDpi);
        guestWidth = metric.widthPixels;
        guestHeight = metric.heightPixels;
        initSurfaceHolderCallback(surfaceView.getHolder());
    }
    private void initSurfaceHolderCallback(SurfaceHolder surfaceHolder) {
       surfaceHolder.addCallback(new SurfaceHolder.Callback() {
           @Override
           public void surfaceCreated(SurfaceHolder surfaceHolder) {
               // Create an activity for the first time.
               newlyCreated = true;
           }
           @Override
           public void surfaceChanged(SurfaceHolder inSurfaceHolder, int format, 
              int width, int height) {
               if (!newlyCreated) {
                   return;
               }
               newlyCreated = false;
               // The startup interface function involves socket connections. It is recommended that the function be called in a thread.
               threadPool.submit(new ConnectRunable());
           }
           @Override
           public void surfaceDestroyed(SurfaceHolder surfaceHolder) {
               newlyCreated = false;
           }
      });
  }
  class ConnectRunable implements Runnable {
        @Override
        public void run() {
            // Call the function for starting the video stream engine.
            final int startResult = engine.start(surfaceView.getHolder().getSurface(),
                guestWidth, guestHeight, metric.densityDpi);
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    if (startResult == VideoEngine.VMI_CLIENT_START_FAIL) {
                      // Connection failed.
                    } else {
                        //  The connection is successful or has been established.
                    }
                }
            });
       }
  }