系统播放器

打开视频列表

public void getbut_local(View view) {
    Intent intent = new Intent(Intent.ACTION_PICK);
    intent.setType("video/*");
    startActivityForResult(intent, 1);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    Uri url = data.getData();
    if (url==null){
        return;
    }
    Log.d(TAG, "onActivityResult: ---" + url);
   getSystemplayer(url);
}

调用系统播放器播放视频

private void getSystemplayer(Uri url) {
    Intent intent = new Intent(Intent.ACTION_VIEW);
    intent.setDataAndType(url, "video/*");
    startActivity(intent);
}

调用系统播放器播放网络视频

    public void getLocal(View view) {
//   练习网址：       http://vfx.mtime.cn/Video/2019/02/04/mp4/190204084208765161.mp4
        String BaseUrl = "http://vfx.mtime.cn/Video/2019/02/04/mp4/190204084208765161.mp4";
        Uri uri = Uri.parse(BaseUrl);
        getSystemplayered(uri);   
    }

    private void getSystemplayered(Uri url) {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setDataAndType(url, "video/*");
        startActivity(intent);
    }

VideoView播放器

调用 VideoView播放器播放视频

 public void getbut_local(View view) {
 Intent intent = new Intent(Intent.ACTION_PICK);
 intent.setType("video/*");
 startActivityForResult(intent, 1);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Uri url = data.getData();
 if (url==null){
            return;
        }
Log.d(TAG, "onActivityResult: ---" + url);
  playVideoView(url);

  }

调用 VideoView 播放器播放网络视频

public void getVideo(View view) {
//   练习网址：       http://vfx.mtime.cn/Video/2019/02/04/mp4/190204084208765161.mp4
    String BaseUrl = "http://vfx.mtime.cn/Video/2019/02/04/mp4/190204084208765161.mp4";
    Uri uri = Uri.parse(BaseUrl);
    playVideoView(uri);
}
    private  void  playVideoView(Uri uri){
        VideoView videoView=this.findViewById(R.id.videoview);
        videoView.setVideoURI(uri);
        videoView.start();
    }

SurfaceView + Mediaplay 播放器

SurfaceView + Mediaplay 实现播放本地视频

public class MainActivity extends AppCompatActivity {

    private SurfaceView mSurfaceview;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
    }
    private void initView() {
//        1、  SurfaceView   找到  SurfaceView 布局
        mSurfaceview = (SurfaceView) findViewById(R.id.surfaceview);
    }
}
    public void getVideo(View view) {
        Intent intent = new Intent(Intent.ACTION_PICK);
        intent.setType("video/*");
        startActivityForResult(intent, 1);
    }


    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        Uri uri = data.getData();

//       2、MediaPlayer
        final MediaPlayer mediaPlayer = new MediaPlayer();
        try {
            mediaPlayer.setDataSource(this, uri);
        } catch (IOException e) {
            e.printStackTrace();
        }
//       3、SurfaceHolder
//      用于 连接      2、MediaPlayer 与   1、SurfaceView
        mSurfaceview.getHolder().addCallback(new SurfaceHolder.Callback2() {
            @Override
            public void surfaceRedrawNeeded(SurfaceHolder holder) {

            }

            @Override
            public void surfaceCreated(SurfaceHolder holder) {
                mediaPlayer.setDisplay(holder);
                try {
                    mediaPlayer.prepare();
                    mediaPlayer.start();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

            @Override
            public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

            }

            @Override
            public void surfaceDestroyed(SurfaceHolder holder) {
                mediaPlayer.stop();
                mediaPlayer.release();
            }
        });

    }

SurfaceView + Mediaplay 实现播放网络视频

public class SurfaceViewActivity extends AppCompatActivity {

    private ImageView imageView;
    private SurfaceView surfaceView;
    private Context context;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_surface_view);
        context = getApplicationContext();
        imageView = this.findViewById(R.id.imageView);
        // SurfaceView
        surfaceView = this.findViewById(R.id.surfaceView);
        getVideoCover();
        playVideo(surfaceView);
    }

    private void playVideo(SurfaceView surfaceView) {
        try {
            // MediaPlayer
            final MediaPlayer mediaPlayer = new MediaPlayer();
            Uri uri = Uri.parse("http://vfx.mtime.cn/Video/2019/03/17/mp4/190317150237409904.mp4");
            mediaPlayer.setDataSource(this, uri);
            // SurfaceHolder
            surfaceView.getHolder().addCallback(new SurfaceHolder.Callback2() {
                @Override
                public void surfaceRedrawNeeded(SurfaceHolder holder) {

                }

                @Override
                public void surfaceCreated(SurfaceHolder holder) {
                    // SurfaceView创建时调用
                    try {
                        mediaPlayer.setDisplay(holder);
                        mediaPlayer.prepare();
                        mediaPlayer.start();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }

                @Override
                public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
                    // 横竖屏切换
                }

                @Override
                public void surfaceDestroyed(SurfaceHolder holder) {
                    // SurfaceView销毁时调用
                    mediaPlayer.stop();
                    mediaPlayer.release();
                }
            });
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void getVideoCover() {
        MediaMetadataRetriever retriever = new MediaMetadataRetriever();
        Uri uri = Uri.parse("http://vfx.mtime.cn/Video/2019/03/17/mp4/190317150237409904.mp4");
        retriever.setDataSource(uri.toString(), new HashMap<String, String>());
        Bitmap bitmap = retriever.getFrameAtTime();
        imageView.setImageBitmap(bitmap);
        // 获取屏幕的宽高
        Resources resources = context.getResources();
        DisplayMetrics metrics = resources.getDisplayMetrics();
        int widthPixels = metrics.widthPixels;
        int heightPixels = metrics.heightPixels;
        // 重新设置SurfaceView宽高
        int width = bitmap.getWidth();
        int height = bitmap.getHeight();
        // 计算最佳缩放比例
        float widthRatio = width * 1.f / widthPixels;
        float heightRatio = height * 1.0f / heightPixels;
        float ratio = Math.max(widthRatio, heightRatio);
        // 计算视频显示的宽高
        int displayWidth = (int) (width / ratio);
        int displayHeight = (int) (height / ratio);
        // 设置SurfaceView的宽高
        ViewGroup.LayoutParams layoutParams = surfaceView.getLayoutParams();
        layoutParams.width = displayWidth;
        layoutParams.height = displayHeight;
        surfaceView.requestLayout();


    }

    // teamviewer

}