如何实现android视频播放器全屏播放

我已经实现了android视频播放器，但我不需要像这样我需要什么意思当我打开活动时我需要支付视频半屏在中心当我点击按钮全屏按钮然后我需要全屏支付，如何实现它帮助我....

视频播放器活动

public class VideoPlayerActivity extends Activity implements SurfaceHolder.Callback, MediaPlayer.OnPreparedListener, VideoControllerView.MediaPlayerControl {

    SurfaceView videoSurface;
    MediaPlayer player;
    VideoControllerView controller;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_video_player);

        videoSurface = (SurfaceView) findViewById(R.id.videoSurface);
        SurfaceHolder videoHolder = videoSurface.getHolder();
        videoHolder.addCallback(this);

        player = new MediaPlayer();
        controller = new VideoControllerView(this);

        try {
            player.setAudioStreamType(AudioManager.STREAM_MUSIC);
            player.setDataSource(this, Uri.parse("http:/myipadree/sites/default/files/759226_639541239394676_1125470178_n.mp4"));
            player.setOnPreparedListener(this);
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (SecurityException e) {
            e.printStackTrace();
        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        controller.show();
        return false;
    }

    // Implement SurfaceHolder.Callback
    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        player.setDisplay(holder);
        player.prepareAsync();
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {

    }
    // End SurfaceHolder.Callback

    // Implement MediaPlayer.OnPreparedListener
    @Override
    public void onPrepared(MediaPlayer mp) {
        controller.setMediaPlayer(this);
        controller.setAnchorView((FrameLayout) findViewById(R.id.videoSurfaceContainer));
        player.start();
    }
    // End MediaPlayer.OnPreparedListener

    // Implement VideoMediaController.MediaPlayerControl
    @Override
    public boolean canPause() {
        return true;
    }

    @Override
    public boolean canSeekBackward() {
        return true;
    }

    @Override
    public boolean canSeekForward() {
        return true;
    }

    @Override
    public int getBufferPercentage() {
        return 0;
    }

    @Override
    public int getCurrentPosition() {
        return player.getCurrentPosition();
    }

    @Override
    public int getDuration() {
        return player.getDuration();
    }

    @Override
    public boolean isPlaying() {
        return player.isPlaying();
    }

    @Override
    public void pause() {
        player.pause();
    }

    @Override
    public void seekTo(int i) {
        player.seekTo(i);
    }

    @Override
    public void start() {
        player.start();
    }

    @Override
    public boolean isFullScreen() {
        return false;
    }

    @Override
    public void toggleFullScreen() {

    }
    // End VideoMediaController.MediaPlayer

它工作完美，但如果我修改布局文件宽度和高度，它会打开全屏，那么如何实现全屏和按钮全屏按钮

这是自定义媒体控件的演示，但是全屏和小屏没有代码。http://www.brightec.co.uk/blog/custom-android-media-controller我正在创建方法 setFullScreen。下面的代码对我有用。

private boolean mFullScreen = true;

@Override
public boolean isFullScreen() {   
    if(mFullScreen){    
        Log.v("FullScreen", "--set icon full screen--");
        return false;
    }else{
        Log.v("FullScreen", "--set icon small full screen--");
        return true;
    }   
}
@Override
public void toggleFullScreen() {
    Log.v("FullScreen", "-----------------click toggleFullScreen-----------");
    setFullScreen(isFullScreen());

}
// End VideoMediaController.MediaPlayerControl

public void setFullScreen(boolean fullScreen){
    fullScreen = false;

    if (mFullScreen)

    {
        Log.v("FullScreen", "-----------Set full screen SCREEN_ORIENTATION_LANDSCAPE------------"); 
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); 
        DisplayMetrics displaymetrics = new DisplayMetrics();
          getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
          int height = displaymetrics.heightPixels;
          int width = displaymetrics.widthPixels;
          android.widget.FrameLayout.LayoutParams params = (android.widget.FrameLayout.LayoutParams) videoSurface.getLayoutParams();
          params.width = width;
          params.height=height;
          params.setMargins(0, 0, 0, 0);
          //set icon is full screen
         mFullScreen = fullScreen;
    }
    else{
        Log.v("FullScreen", "-----------Set small screen SCREEN_ORIENTATION_PORTRAIT------------");             
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);      
        DisplayMetrics displaymetrics = new DisplayMetrics();
          getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
          final FrameLayout mFrame = (FrameLayout) findViewById(R.id.videoSurfaceContainer);
         // int height = displaymetrics.heightPixels;
          int height = mFrame.getHeight();//get height Frame Container video
          int width = displaymetrics.widthPixels;
          android.widget.FrameLayout.LayoutParams params = (android.widget.FrameLayout.LayoutParams) videoSurface.getLayoutParams();
          params.width = width;
          params.height= height;
          params.setMargins(0, 0, 0, 0);
          //set icon is small screen
          mFullScreen = !fullScreen;
    }
}

或使用 onConfigurationChanged 进行旋转屏幕。

*@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);

  // Checks the orientation of the screen
  if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
    Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show();
   // setContentView(R.layout.view_lang);
      DisplayMetrics displaymetrics = new DisplayMetrics();
      getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
      int height = displaymetrics.heightPixels;
      int width = displaymetrics.widthPixels;
      android.widget.FrameLayout.LayoutParams params = (android.widget.FrameLayout.LayoutParams) videoSurface.getLayoutParams();
      params.width = width;
      params.height=height;// -80 for android controls
      params.setMargins(0, 0, 0, 0);
  } else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
    Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show();
    //setContentView(R.layout.view);    
    DisplayMetrics displaymetrics = new DisplayMetrics();
      getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
      int height = displaymetrics.heightPixels;
      int width = displaymetrics.widthPixels;
      android.widget.FrameLayout.LayoutParams params = (android.widget.FrameLayout.LayoutParams) videoSurface.getLayoutParams();
      params.width = width;
      params.height=height / 3;
      params.setMargins(0, 0, 0, 0);
  }
}

在 AndroidManifest.xml 中添加代码

 android:configChanges="orientation|keyboard|keyboardHidden|screenSize" 

对不起英语！