Android TextureView & MediaPlayer implements video media player

code:

import android.graphics.SurfaceTexture;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Surface;
import android.view.TextureView;

import java.io.File;

public class MainActivity extends AppCompatActivity {

    private MediaPlayer mMediaPlayer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        TextureView textureView = new TextureView(this);
        setContentView(textureView);

        textureView.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {
            @Override
            public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
                Surface mSurface = new Surface(surface);
                player(mSurface);
            }

            @Override
            public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {

            }

            @Override
            public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
                mMediaPlayer.stop();
                mMediaPlayer.release();

                return false;
            }

            @Override
            public void onSurfaceTextureUpdated(SurfaceTexture surface) {

            }
        });
    }

    private void player(Surface surface) {
        try {
            File file = new File(Environment.getExternalStorageDirectory() + "/video.mp4");

            mMediaPlayer = new MediaPlayer();
            mMediaPlayer.setDataSource(file.getAbsolutePath());
            mMediaPlayer.setSurface(surface);
            mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mMediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
                @Override
                public void onPrepared(MediaPlayer mp) {
                    mMediaPlayer.start();
                }
            });
            mMediaPlayer.prepare();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

need permission:

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>