SurfaceView height + width gets ignored

问题:

The following script works flawless, but the size of my videoplayer will get f'd after changing my surfaceview from portrait to landscape. Tried several options like setFixedSize(), setSizeFromLayout() and removing everything which involves my width + height from my surfaceview. Does anyone knows whats wrong with the code below? Or did someone have the same problem in the past?

package com.list;
import io.vov.vitamio.MediaPlayer;
import io.vov.vitamio.MediaPlayer.OnBufferingUpdateListener;
import io.vov.vitamio.MediaPlayer.OnCompletionListener;
import io.vov.vitamio.MediaPlayer.OnPreparedListener;
import io.vov.vitamio.MediaPlayer.OnVideoSizeChangedListener;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;

public class mediaPlayer extends Activity implements OnBufferingUpdateListener, OnCompletionListener, OnPreparedListener, OnVideoSizeChangedListener, SurfaceHolder.Callback {

private static final String TAG = "MediaPlayerDemo";
private int mVideoWidth;
private int mVideoHeight;
private MediaPlayer mMediaPlayer;
private SurfaceView mPreview;
private SurfaceHolder holder;


private boolean mIsVideoSizeKnown = false;
private boolean mIsVideoReadyToBePlayed = false;

@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.mediaplayer);
    mPreview = (SurfaceView) findViewById(R.id.surface);
    holder = mPreview.getHolder();
    holder.addCallback(this);
}

private void playVideo() {
    doCleanUp();
    try {
        mMediaPlayer = new MediaPlayer(this);
        Intent myIntent = this.getIntent();
        String url = myIntent.getStringExtra("url");
        mMediaPlayer.setDataSource(url);
        mMediaPlayer.setDisplay(holder);
        mMediaPlayer.prepareAsync();
        mMediaPlayer.setScreenOnWhilePlaying(true);
        mMediaPlayer.setOnBufferingUpdateListener(this);
        mMediaPlayer.setOnCompletionListener(this);
        mMediaPlayer.setOnPreparedListener(this);
        mMediaPlayer.setOnVideoSizeChangedListener(this);
    } catch (Exception e) {
        Log.e(TAG, "error: " + e.getMessage(), e);
    }
}

public void onBufferingUpdate(MediaPlayer arg0, int percent) {
    Log.d(TAG, "onBufferingUpdate percent:" + percent);

}

public void onCompletion(MediaPlayer arg0) {
    Log.d(TAG, "onCompletion called");
    mMediaPlayer.release();
}

public void onVideoSizeChanged(MediaPlayer mp, int width, int height) {
    Log.v(TAG, "onVideoSizeChanged called");
    if (width == 0 || height == 0) {
        Log.e(TAG, "invalid video width(" + width + ") or height(" + height + ")");
        return;
    }
    Log.v("afmeting", "->" +width+"px bij "+height+"px");
    mIsVideoSizeKnown = true;

    if (mIsVideoReadyToBePlayed && mIsVideoSizeKnown) {
        startVideoPlayback();
    }
}

public void onPrepared(MediaPlayer mediaplayer) {
    Log.d(TAG, "onPrepared called");
    mIsVideoReadyToBePlayed = true;
    if (mIsVideoReadyToBePlayed && mIsVideoSizeKnown) {
        startVideoPlayback();
    }
}

public void surfaceChanged(SurfaceHolder surfaceholder, int i, int j, int k) {
    Log.d(TAG, "surfaceChanged called" + i + "  " + j + "   " + k);
}

public void surfaceDestroyed(SurfaceHolder surfaceholder) {
    Log.d(TAG, "surfaceDestroyed called");
}

public void surfaceCreated(SurfaceHolder holder) {
    Log.d(TAG, "surfaceCreated called");
    playVideo();
}

@Override
protected void onPause() {
    super.onPause();
    releaseMediaPlayer();
    doCleanUp();
}

@Override
protected void onDestroy() {
    super.onDestroy();
    releaseMediaPlayer();
    doCleanUp();
}

private void releaseMediaPlayer() {
    if (mMediaPlayer != null) {
        mMediaPlayer.release();
        mMediaPlayer = null;
    }
}

private void doCleanUp() {
    mVideoWidth = 0;
    mVideoHeight = 0;
    mIsVideoReadyToBePlayed = false;
    mIsVideoSizeKnown = false;
}

private void startVideoPlayback() {
    Log.v(TAG, "startVideoPlayback");
    holder.setSizeFromLayout();
    mMediaPlayer.start();
}
}

回答1:

Same problem here:

I believe the problem is the Vitamio library as I have experienced a similar problem when dealing with the Vitamio SDK. Resizing didn't work for me, when using a SurfaceView and invoking setLayoutParams(ViewGroup.LayoutParams params). The below code works fine using the standard Android media-framework, but importing the vitamio packages breaks it.

RelativeLayout.LayoutParams video_VIEWLAYOUT = (RelativeLayout.LayoutParams) videoView.getLayoutParams();
video_VIEWLAYOUT.width = screenWidth;
video_VIEWLAYOUT.height = (int) (((float)videoHeight / (float)videoWidth) *(float)screenWidth);
videoView.setLayoutParams(video_VIEWLAYOUT);

My recommendation would be to try using the io.vov.vitamio.widget.VideoView instead of a android.view.SurfaceView.

回答2:

use this method and call it inside onConfigurationChanged method :

private void setVideoSize() {

    // // Get the dimensions of the video

            // mVideoView is your video view object.

    int videoWidth = mVideoView.getVideoWidth();
    int videoHeight = mVideoView.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
    android.view.ViewGroup.LayoutParams lp = mVideoView.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
    mVideoView.setLayoutParams(lp);
}

Now on change of orientation your videoview will be resized.