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我想在横向模式下播放具有纵横比的视频。所以，我写了以下。

    landscape = true;
    // Get the dimensions of the video
    int videoWidth = mediaPlayer.getVideoWidth();
    int videoHeight = mediaPlayer.getVideoHeight();
    float videoProportion = (float) videoWidth / (float) videoHeight;

    // Get the width of the screen
    int screenWidth = getWindowManager().getDefaultDisplay().getWidth();
    int screenHeight = getWindowManager().getDefaultDisplay().getHeight();
    float screenProportion = (float) screenWidth / (float) screenHeight;

    // Get the SurfaceView layout parameters
    lp = surfaceView.getLayoutParams();
    lp.width = (int) (videoProportion * (float) screenHeight);
    lp.height = screenHeight;
   
    mVideoWidth = lp.width;
    mVideoHeight = lp.height;
    
    // Commit the layout parameters
    surfaceView.setLayoutParams(lp);
    holder.setFixedSize(mVideoWidth,  mVideoHeight); '

因此，视频以横向播放，但位置仍然存在。我希望那个位置是中心。如何实施？

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