TextureView+MediaPlayer实现在线短视频播放

比眉伴天荒 2022-06-15 05:21 309阅读 0赞

## **Android多媒体开发系列文章** ##

*  [Android多媒体开发：录音机][Android]
 *  [Android多媒体开发：照相机][Android 1]
 *  [ TextureView+MediaPlayer实现在线短视频播放][TextureView_MediaPlayer]
 *  [Android多媒体开发：第三方框架][Android 2]

## TextureView+MediaPlayer实现在线短视频播放 ##

![VideoPlayer.jpg][]

## 列表item布局文件 ##

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical">
    
        <FrameLayout android:layout_width="match_parent" android:layout_height="wrap_content">
    
    
            <ImageView android:id="@+id/iv_bg" android:layout_width="match_parent" android:layout_height="200dp" android:scaleType="centerCrop" android:src="@mipmap/beautiful" android:visibility="visible"/>
    
    
            <com.jackchan.videoplayer.view.VideoPlayer android:id="@+id/videoPlayer" android:layout_width="match_parent" android:layout_height="200dp" android:visibility="visible"/>
    
    
        </FrameLayout>
    
        <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center_vertical" android:orientation="horizontal" android:padding="10dp">
    
            <ImageView android:id="@+id/iv_author" android:layout_width="20dp" android:layout_height="20dp" android:background="@drawable/qq_allshare_normal"/>
    
            <TextView android:id="@+id/tv_author_name" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:text="飞行的钢蛋儿" android:textColor="#000"/>
    
            <TextView android:id="@+id/tv_play_count" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_weight="1" android:text="109万次播放" android:textColor="#8b8787"/>
    
            <ImageView android:id="@+id/iv_comment" android:layout_width="20dp" android:layout_height="20dp" android:layout_marginRight="2dp" android:background="@drawable/comment_video_normal"/>
    
            <TextView android:id="@+id/tv_comment_count" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="10dp" android:text="3940" android:textColor="#8b8787"/>
    
            <ImageView android:id="@+id/iv_comment_more" android:layout_width="20dp" android:layout_height="20dp" android:background="@drawable/more_pgc_comment_normal_night"/>
        </LinearLayout>
    
    </LinearLayout>

其中VideoPlayer是自定义View，继承于RelativeLayout，是视频播放的关键类

## VideoPlayer ##

public VideoPlayer(Context context, AttributeSet attrs, int defStyleAttr) {
            super(context, attrs, defStyleAttr);
            initView();
        }
            //初始化布局
        private void initView() {
            View view = View.inflate(getContext(), R.layout.video_play, this);
            ButterKnife.bind(this,view);
            ...
        }

<?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content">
    
        
        <TextureView android:id="@+id/video_view" android:layout_width="match_parent" android:layout_height="200dp" android:visibility="visible"/>
    
        
        <com.jackchan.videoplayer.view.VideoMediaController android:id="@+id/mediaController" android:layout_width="match_parent" android:layout_height="wrap_content"/>
    
    </RelativeLayout>

实现视频播放功能的是TextureView，VideoMediaController视频播放控制器，自定义View，继承于RelativeLayout

### 视频播放（视频的初始化） ###

private void play(String url){
            try {
                mPlayer = MediaHelper.getInstance();
                mPlayer.reset();
                mPlayer.setDataSource(url);
                //让MediaPlayer和TextureView进行视频画面的结合
                mPlayer.setSurface(mSurface);
                //设置监听
                mPlayer.setOnBufferingUpdateListener(onBufferingUpdateListener);
                mPlayer.setOnCompletionListener(onCompletionListener);
                mPlayer.setOnErrorListener(onErrorListener);
                mPlayer.setOnPreparedListener(onPreparedListener);
                mPlayer.setScreenOnWhilePlaying(true);//在视频播放的时候保持屏幕的高亮
                //异步准备
                mPlayer.prepareAsync();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

### 准备完成监听 ###

private MediaPlayer.OnPreparedListener onPreparedListener = new MediaPlayer.OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mp) {
                //隐藏视频加载进度条
                mediaController.setPbLoadingVisiable(View.GONE);
                //进行视频的播放
                MediaHelper.play();
                hasPlay = true;
                //隐藏标题
                mediaController.delayHideTitle();
                //设置视频的总时长
                mediaController.setDuration(mPlayer.getDuration());
                //更新播放的时间和进度
                mediaController.updatePlayTimeAndProgress();
            }
        };

### 进行TextureView控件创建的监听 ###

videoView.setSurfaceTextureListener(surfaceTextureListener);

private TextureView.SurfaceTextureListener surfaceTextureListener = new TextureView.SurfaceTextureListener() {
    
            //创建完成 TextureView才可以进行视频画面的显示
            @Override
            public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
               // Log.i(TAG,"onSurfaceTextureAvailable");
                mSurface = new Surface(surface);//连接对象（MediaPlayer和TextureView）
                play(info.url);
            }
    
            @Override
            public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
               // Log.i(TAG,"onSurfaceTextureSizeChanged");
            }
    
            @Override
            public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
               // Log.i(TAG,"onSurfaceTextureDestroyed");
                return true;
            }
    
            @Override
            public void onSurfaceTextureUpdated(SurfaceTexture surface) {
               // Log.i(TAG,"onSurfaceTextureUpdated");
            }
        };

## VideoMediaController ##

![VideoMediaController1.jpg][]

![VideoMediaController2.jpg][]

布局文件如下

<?xml version="1.0" encoding="utf-8"?>
    <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="200dp" >
    
        
        <ProgressBar android:id="@+id/pb_loading" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:visibility="gone"/>
    
        <RelativeLayout android:id="@+id/rl_play_finish" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#b4000000" android:visibility="visible">
    
            <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:orientation="horizontal">
    
                <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="20dp" android:orientation="vertical" >
    
                    <ImageView android:id="@+id/iv_replay" android:layout_width="50dp" android:layout_height="50dp" android:src="@drawable/replay_video"/>
    
                    <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:layout_marginTop="5dp" android:text="重播" android:textColor="#fff" android:textSize="14sp"/>
                </LinearLayout>
    
                <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" >
    
                    <ImageView android:id="@+id/iv_share" android:layout_width="50dp" android:layout_height="50dp" android:src="@drawable/share_video"/>
    
                    <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:layout_marginTop="5dp" android:text="分享" android:textColor="#fff" android:textSize="14sp"/>
                </LinearLayout>
            </LinearLayout>
        </RelativeLayout>
    
        <TextView android:id="@+id/tv_title" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_margin="10dp" android:gravity="center" android:text="@string/title" android:textColor="#fff" android:textSize="14sp"/>
    
        <ImageView android:id="@+id/iv_play" android:layout_width="50dp" android:layout_height="50dp" android:layout_gravity="center" android:src="@drawable/new_play_video" android:visibility="visible"/>
    
        <TextView android:id="@+id/tv_all_time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="bottom|right" android:layout_margin="10dp" android:background="@drawable/tv_time_bg" android:paddingBottom="5dp" android:paddingLeft="10dp" android:paddingRight="10dp" android:paddingTop="5dp" android:text="02:30" android:textColor="#fff" android:textSize="10sp" android:visibility="visible"/>
    
        <LinearLayout android:id="@+id/ll_play_control" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_gravity="bottom" android:background="#ca000000" android:gravity="center_vertical" android:padding="10dp" android:visibility="visible" >
    
            <TextView android:id="@+id/tv_use_time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="10dp" android:text="00:00" android:textColor="#fff" android:textSize="10sp"/>
    
            <SeekBar android:id="@+id/seekBar" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginRight="10dp" android:layout_weight="1" android:progressDrawable="@drawable/sb_progress_drawable" android:thumb="@drawable/biz_video_progress_thumb" />
    
            <TextView android:id="@+id/tv_time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="10dp" android:text="02:30" android:textColor="#fff" android:textSize="10sp"/>
    
            <ImageView android:id="@+id/iv_fullscreen" android:layout_width="20dp" android:layout_height="20dp" android:src="@drawable/enlarge_fullscreen"/>
        </LinearLayout>
    </FrameLayout>

显示或者隐藏视频控制界面

private void showOrHideVideoController() {
            if(llPlayControl.getVisibility() == View.GONE){
                //显示（标题、播放按钮、视频进度控制）
                tvTitle.setVisibility(View.VISIBLE);
                ivPlay.setVisibility(View.VISIBLE);
                //加载动画
                Animation animation = AnimationUtils.loadAnimation(getContext(),R.anim.bottom_enter);
                animation.setAnimationListener(new SimpleAnimationListener(){
                    @Override
                    public void onAnimationEnd(Animation animation) {
                        super.onAnimationEnd(animation);
                        llPlayControl.setVisibility(View.VISIBLE);
                        //过2秒后自动隐藏
                        mHandler.sendEmptyMessageDelayed(MSG_HIDE_CONTROLLER,2000);
                    }
                });
                //执行动画
                llPlayControl.startAnimation(animation);
            }else{
                //隐藏（标题、播放按钮、视频进度控制）
                tvTitle.setVisibility(View.GONE);
                ivPlay.setVisibility(View.GONE);
                //加载动画
                Animation animation = AnimationUtils.loadAnimation(getContext(),R.anim.bottom_exit);
                animation.setAnimationListener(new SimpleAnimationListener(){
                    @Override
                    public void onAnimationEnd(Animation animation) {
                        super.onAnimationEnd(animation);
                        llPlayControl.setVisibility(View.GONE);
                    }
                });
                //执行动画
                llPlayControl.startAnimation(animation);
            }
        }

更新播放的时间和进度

public void updatePlayTimeAndProgress() {
            //获取目前播放的进度
            int currentPosition = MediaHelper.getInstance().getCurrentPosition();
            //格式化
            String useTime = formatDuration(currentPosition);
            tvUseTime.setText(useTime);
            //更新进度
            int duration = MediaHelper.getInstance().getDuration();
            if(duration == 0){
                return;
            }
            int progress = 100*currentPosition/duration;
            seekBar.setProgress(progress);
            //发送一个更新的延时消息
            mHandler.sendEmptyMessageDelayed(MSG_UPDATE_TIME_PROGRESS,500);
        }

## 自定义SeekBar ##

sb\_progress\_drawable

<?xml version="1.0" encoding="utf-8"?>
    <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
        <item android:id="@android:id/background" android:drawable="@drawable/sb_bg"/>
        <item android:id="@android:id/secondaryProgress">
            <scale android:scaleWidth="100%">
                <selector>
                    <item android:state_enabled="false">
                        <color android:color="@android:color/transparent"/>
                    </item>
                    <item android:drawable="@drawable/sb_second"/>
                </selector>
            </scale>
        </item>
        <item android:id="@android:id/progress">
            <scale android:scaleWidth="100%">
                <selector>
                    <item android:state_enabled="false">
                        <color android:color="@android:color/transparent"/>
                    </item>
                    <item android:drawable="@drawable/sb_progress"/>
                </selector>
            </scale>
        </item>
    </layer-list>

## 列表的item滚动出屏幕时停止播放 ##

private RecyclerView.OnScrollListener onScrollListener = new RecyclerView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                super.onScrollStateChanged(recyclerView, newState);
            }
    
            //进行滑动
            @Override
            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);
                //获取屏幕上显示的第一个条目和最后一个条目的下标
                int firstVisibleItemPosition = lm.findFirstVisibleItemPosition();
                int lastVisibleItemPosition = lm.findLastVisibleItemPosition();
                //获取播放条目的下标
                int currentPosition = adapter.currentPosition;
                if((firstVisibleItemPosition > currentPosition || lastVisibleItemPosition < currentPosition) && currentPosition > -1){
                    //让播放隐藏的条目停止
                    MediaHelper.release();
                    adapter.currentPosition = -1;
                    adapter.notifyDataSetChanged();
                }
            }
        };

> 代码：[https://github.com/JackChan1999/VideoPlayer][https_github.com_JackChan1999_VideoPlayer]

[Android]: http://blog.csdn.net/axi295309066/article/details/52724017
[Android 1]: http://blog.csdn.net/axi295309066/article/details/52723527
[TextureView_MediaPlayer]: http://blog.csdn.net/axi295309066/article/details/72712340
[Android 2]: http://blog.csdn.net/axi295309066/article/details/52724069
[VideoPlayer.jpg]: https://github.com/JackChan1999/VideoPlayer/raw/master/art/VideoPlayer.jpg
[VideoMediaController1.jpg]: https://github.com/JackChan1999/VideoPlayer/raw/master/art/VideoMediaController1.jpg
[VideoMediaController2.jpg]: /images/20220615/ceab3553e8ae48bda77d8ff287eb6524.png
[https_github.com_JackChan1999_VideoPlayer]: https://github.com/JackChan1999/VideoPlayer