本文介绍了之后的onPause打TextureView视频变黑的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我使用的是TextureView在ListView播放视频。该TextureView本身完美的作品,但是,如果我preSS主页按钮并重新输入应用了几次,该TextureView变成黑色(虽然音频继续播放)。如果我退出,然后再次重新输入,对TextureView变成白色(或者透明的,白色是我的背景色)。

下面是我的code:

  holder.instagramTextureView
    .setSurfaceTextureListener(新SurfaceTextureListener(){        @覆盖
        公共无效onSurfaceTextureUpdated(
                表面表面纹理){
            // TODO自动生成方法存根        }        @覆盖
        公共无效onSurfaceTextureSizeChanged(
                表面表面纹理,诠释的宽度,高度INT){
            // TODO自动生成方法存根        }        @覆盖
        公共布尔onSurfaceTextureDestroyed(
                表面表面纹理){
            // TODO自动生成方法存根
            返回false;
        }        @覆盖
        公共无效onSurfaceTextureAvailable(
                表面表面纹理,诠释的宽度,高度INT){
            最后面S =新的表面(表面);            尝试{
                holder.mMediaPlayer =新的MediaPlayer();
                holder.mMediaPlayer.setDataSource(后
                                .getMedias()得到(0)
                                .getMediaUrlVideomp4StandardRes());
                holder.mMediaPlayer.setSurface(多个);
                holder.mMediaPlayer prepare()。                holder.instagramVideoVolume = 0F;
                holder.mMediaPlayer.setVolume(
                        holder.instagramVideoVolume,
                        holder.instagramVideoVolume);
                //holder.mMediaPlayer.setOnBufferingUpdateListener(this);                holder.mMediaPlayer
                    .setOnCompletionListener(新OnCompletionListener(){
                        @覆盖
                        公共无效onCompletion(
                                MediaPlayer的熔点){                            //播放:
                            mp.reset();
                            尝试{
                                mp.setDataSource(后
                                    .getMedias()
                                    获得(0)
                                    .getMediaUrlVideomp4StandardRes());
                                MP prepare()。                            }赶上(抛出:IllegalArgumentException五){
                                // TODO自动生成捕
                                //块
                                e.printStackTrace();
                            }赶上(SecurityException异常五){
                                // TODO自动生成捕
                                //块
                                e.printStackTrace();
                            }赶上(IllegalStateException异常五){
                                // TODO自动生成捕
                                //块
                                e.printStackTrace();
                            }赶上(IOException异常五){
                                // TODO自动生成捕
                                //块
                                e.printStackTrace();
                            }
                            //< ---这里涉及到一个呼叫
                            //调整大小,这是显示
                            //右上此code
                            mp.start();
                        }
                });                // holder.mMediaPlayer.setOn preparedListener(本);
                //holder.mMediaPlayer.setOnVideoSizeChangedListener(this);                holder.mMediaPlayer
                    .setAudioStreamType(AudioManager.STREAM_MUSIC);
                holder.mMediaPlayer.start();                holder.instagramTextureView
                    .setOnClickListener(新OnClickListener(){                        @覆盖
                        公共无效的onClick(视图v){
                            如果(holder.instagramVideoVolume == 1){
                                holder.instagramVideoVolume = 0F;
                                holder.mMediaPlayer
                                    .setVolume(
                                        holder.instagramVideoVolume,
                                        holder.instagramVideoVolume);
                            }其他{
                                holder.instagramVideoVolume = 1F;
                                holder.mMediaPlayer
                                    .setVolume(
                                        holder.instagramVideoVolume,
                                        holder.instagramVideoVolume);
                                    }
                            }
                });            }赶上(抛出:IllegalArgumentException五){
                // TODO自动生成catch块
                e.printStackTrace();
            }赶上(SecurityException异常五){
                // TODO自动生成catch块
                e.printStackTrace();
            }赶上(IllegalStateException异常五){
                // TODO自动生成catch块
                e.printStackTrace();
            }赶上(IOException异常五){
                // TODO自动生成catch块
                e.printStackTrace();
            }
        }
});


解决方案

问题是每次的表面,可以制作一个新的媒体播放器。搞不清怎么运作的,但是这是问题。相反,我创建了这个监听器之外的媒体播放器。

I am using a TextureView to play a video in a ListView. The TextureView itself works perfectly, however, if I press the home button and reenter the application a few times, the TextureView turns black (though the audio continues to play). If I exit and reenter again, the TextureView turns white (or maybe transparent, as white is the colour of my background).

Here is my code:

holder.instagramTextureView
    .setSurfaceTextureListener(new SurfaceTextureListener() {

        @Override
        public void onSurfaceTextureUpdated(
                SurfaceTexture surface) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onSurfaceTextureSizeChanged(
                SurfaceTexture surface, int width, int height) {
            // TODO Auto-generated method stub

        }

        @Override
        public boolean onSurfaceTextureDestroyed(
                SurfaceTexture surface) {
            // TODO Auto-generated method stub
            return false;
        }

        @Override
        public void onSurfaceTextureAvailable(
                SurfaceTexture surface, int width, int height) {
            final Surface s = new Surface(surface);

            try {
                holder.mMediaPlayer = new MediaPlayer();
                holder.mMediaPlayer.setDataSource(post
                                .getMedias().get(0)
                                .getMediaUrlVideomp4StandardRes());
                holder.mMediaPlayer.setSurface(s);
                holder.mMediaPlayer.prepare();

                holder.instagramVideoVolume = 0f;
                holder.mMediaPlayer.setVolume(
                        holder.instagramVideoVolume,
                        holder.instagramVideoVolume);
                //holder.mMediaPlayer.setOnBufferingUpdateListener(this);

                holder.mMediaPlayer
                    .setOnCompletionListener(new OnCompletionListener() {
                        @Override
                        public void onCompletion(
                                MediaPlayer mp) {

                            // To play:
                            mp.reset();
                            try {
                                mp.setDataSource(post
                                    .getMedias()
                                    .get(0)
                                    .getMediaUrlVideomp4StandardRes());
                                mp.prepare();

                            } catch (IllegalArgumentException e) {
                                // TODO Auto-generated catch
                                // block
                                e.printStackTrace();
                            } catch (SecurityException e) {
                                // TODO Auto-generated catch
                                // block
                                e.printStackTrace();
                            } catch (IllegalStateException e) {
                                // TODO Auto-generated catch
                                // block
                                e.printStackTrace();
                            } catch (IOException e) {
                                // TODO Auto-generated catch
                                // block
                                e.printStackTrace();
                            }
                            // <--- Here comes a call to
                            // "To Resize" which is shown
                            // right above this code
                            mp.start();
                        }
                });

                // holder.mMediaPlayer.setOnPreparedListener(this);
                //holder.mMediaPlayer.setOnVideoSizeChangedListener(this);

                holder.mMediaPlayer
                    .setAudioStreamType(AudioManager.STREAM_MUSIC);
                holder.mMediaPlayer.start();

                holder.instagramTextureView
                    .setOnClickListener(new OnClickListener() {

                        @Override
                        public void onClick(View v) {
                            if (holder.instagramVideoVolume == 1) {
                                holder.instagramVideoVolume = 0f;
                                holder.mMediaPlayer
                                    .setVolume(
                                        holder.instagramVideoVolume,
                                        holder.instagramVideoVolume);
                            } else {
                                holder.instagramVideoVolume = 1f;
                                holder.mMediaPlayer
                                    .setVolume(
                                        holder.instagramVideoVolume,
                                        holder.instagramVideoVolume);
                                    }
                            }
                });

            } catch (IllegalArgumentException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (SecurityException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IllegalStateException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
});
解决方案

Problem was making a new mediaplayer each time the surface is available. Not quite sure how this worked, but this was the problem. Instead, I create the mediaplayer outside of this listener.

这篇关于之后的onPause打TextureView视频变黑的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

09-13 23:37