Example usage for android.view SurfaceHolder.Callback SurfaceHolder.Callback

Introduction

In this page you can find the example usage for android.view SurfaceHolder.Callback SurfaceHolder.Callback.

Prototype

SurfaceHolder.Callback

Source Link

Usage

From source file:uk.ac.hutton.ics.buntata.activity.VideoActivity.java

@Override
protected void onResume() {
    super.onResume();

    if (player == null) {
        try {/*from w ww .ja  v a  2 s .c om*/
            player = new MediaPlayer();
            player.setDataSource(this, uri);

            mediaController = new MediaController(this);

            sv.getHolder().addCallback(new SurfaceHolder.Callback() {
                @Override
                public void surfaceCreated(SurfaceHolder holder) {
                    player.setDisplay(holder);
                }

                @Override
                public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
                    player.setDisplay(holder);
                }

                @Override
                public void surfaceDestroyed(SurfaceHolder holder) {
                }
            });

            player.setOnVideoSizeChangedListener(new MediaPlayer.OnVideoSizeChangedListener() {
                @Override
                public void onVideoSizeChanged(MediaPlayer mp, int width, int height) {
                    // // Get the dimensions of the video
                    int videoWidth = player.getVideoWidth();
                    int videoHeight = player.getVideoHeight();
                    float videoProportion = (float) videoWidth / (float) videoHeight;

                    // Get the width of the screen
                    Point point = new Point();
                    getWindowManager().getDefaultDisplay().getSize(point);
                    int screenWidth = point.x;
                    int screenHeight = point.y;
                    float screenProportion = (float) screenWidth / (float) screenHeight;

                    // Get the SurfaceView layout parameters
                    ViewGroup.LayoutParams lp = sv.getLayoutParams();
                    if (videoProportion > screenProportion) {
                        lp.width = screenWidth;
                        lp.height = (int) ((float) screenWidth / videoProportion);
                    } else {
                        lp.width = (int) (videoProportion * (float) screenHeight);
                        lp.height = screenHeight;
                    }
                    // Commit the layout parameters
                    sv.setLayoutParams(lp);

                    player.start();
                }
            });
            player.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
                @Override
                public void onPrepared(MediaPlayer mp) {
                    mediaController.setMediaPlayer(VideoActivity.this);
                    mediaController.setAnchorView(sv);
                }
            });
            player.prepare();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

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