VideoView的使用

主布局：

<LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context="net.bwie.videoview.activity.MainActivity">    <Button        android:id="@+id/next_btn"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="下一页"/>    <Button        android:id="@+id/play_btn"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="播放"/>    <VideoView        android:id="@+id/video_view"        android:layout_width="match_parent"        android:layout_height="match_parent"/></LinearLayout>

public class MainActivity extends AppCompatActivity implements View.OnClickListener {    protected Button mNextBtn;    protected Button mPlayBtn;    protected VideoView mVideoView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        super.setContentView(R.layout.activity_main);        initView();    }    @Override    public void onClick(View view) {        if (view.getId() == R.id.next_btn) {            VideoListActivity.startActivity(this);        } else if (view.getId() == R.id.play_btn) {//            String rootPath = Environment.getExternalStorageDirectory().getPath();// 根目录//            String fileName = "VID_20171117_144736.3gp";//            String videoPath = rootPath + "/" + fileName;            String videoPath = "http://172.29.23.6:8080/video/aa.3gp";            playVideo(videoPath);        }    }    private void playVideo(String videoPath) {        mVideoView.setVideoPath(videoPath);        // 设置多媒体控制器        mVideoView.setMediaController(new MediaController(this));        mVideoView.start();    }    private void initView() {        mNextBtn = (Button) findViewById(R.id.next_btn);        mNextBtn.setOnClickListener(MainActivity.this);        mPlayBtn = (Button) findViewById(R.id.play_btn);        mPlayBtn.setOnClickListener(MainActivity.this);        mVideoView = (VideoView) findViewById(R.id.video_view);    }}

bean类：

public class VideoBean {    private List<String> pathList;    public VideoBean() {        pathList = new ArrayList<>();        for (int i = 0; i < 20; i++) {            String path = Environment.getExternalStorageDirectory()                    + "/VID_20171117_144736.3gp";            pathList.add(path);        }    }    public List<String> getPathList() {        return pathList;    }    public void setPathList(List<String> pathList) {        this.pathList = pathList;    }}

适配器：

public class VideoListAdapter extends RecyclerView.Adapter<VideoListAdapter.ViewHolder> {    private Context mContext;    private List<String> mPathList;    // 当前正在播放的VideoView    private VideoView mPlayingVideoView;    //记录正在播放的进度TextView    private TextView mPlayingProgressTextiew;    private Handler mHandler;    public VideoListAdapter(Context context, List<String> pathList) {        mContext = context;        mPathList = pathList;    }    @Override    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View itemView = LayoutInflater.from(mContext)                .inflate(R.layout.item_video, parent, false);        return new ViewHolder(itemView);    }    @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)    @Override    public void onBindViewHolder(final ViewHolder holder, int position) {        // 获取播放地址        final String path = mPathList.get(position);        // 如果VideoView滑出去时正在播放，下次复用进入的item应该停止播放并隐藏        holder.mVideoView.stopPlayback();// 停止播放        holder.mVideoView.setVisibility(View.INVISIBLE);// 设置不可见        holder.mProgressTextView.setText("0%");        // 播放按钮绑定监听器        holder.mPlayBtn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                // 停止上一个VideoView的播放并隐藏，才能继续播放当前的视频                if (mPlayingVideoView != null) {                    mPlayingVideoView.stopPlayback();                    mPlayingVideoView.setVisibility(View.INVISIBLE);                }                // 播放时让VideoView可见                holder.mVideoView.setVisibility(View.VISIBLE);// 设置可见性                holder.mVideoView.setVideoPath(path);                holder.mVideoView.start();                // 记录当前正在播放的VideoView                mPlayingVideoView = holder.mVideoView;                mPlayingProgressTextiew = holder.mProgressTextView;                // 提示开始播放的通知                showPlayingNotification();                // 点击播放按钮，使用Handler每间隔1s更新一次进度                mHandler = new Handler(new Handler.Callback() {                    @Override                    public boolean handleMessage(Message msg) {                        // 获取VideoView当前进度和总进度                        int currentPosition = mPlayingVideoView.getCurrentPosition();                        int duration = mPlayingVideoView.getDuration();                        float progress = currentPosition / ((float) duration) * 100;                        // 展示进度百分比                        mPlayingProgressTextiew.setText("0%");                        holder.mProgressTextView.setText(progress + "%");                        mHandler.sendEmptyMessageDelayed(1, 1000);                        return true;                    }                });                // 第一次让Handler更新进度                mHandler.sendEmptyMessageDelayed(1, 1000);            }        });    }    // 展示开始播放的通知    private void showPlayingNotification() {        NotificationCompat.Builder builder = new NotificationCompat.Builder(mContext);        // 必须设置3项：小图标，标题，内容        builder.setSmallIcon(R.mipmap.ic_launcher)                .setContentTitle("视频开始播放")                .setContentText("正在播放");        Notification notification = builder.build();        // 使用通知管理者发布通知        NotificationManager nm = (NotificationManager)                mContext.getSystemService(Context.NOTIFICATION_SERVICE);        ;        // 发布通知        nm.notify(1, notification);    }    @Override    public int getItemCount() {        return mPathList == null ? 0 : mPathList.size();    }    static class ViewHolder extends RecyclerView.ViewHolder {        Button mPlayBtn;        VideoView mVideoView;        TextView mProgressTextView;        public ViewHolder(View itemView) {            super(itemView);            mPlayBtn = ((Button) itemView.findViewById(R.id.play_btn));            mVideoView = ((VideoView) itemView.findViewById(R.id.video_view));            mProgressTextView = ((TextView) itemView.findViewById(R.id.progress_tv));        }    }}

item类

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:orientation="vertical">    <TextView        android:id="@+id/progress_tv"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="当前进度"/>    <Button        android:id="@+id/play_btn"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="播放"/>    <VideoView        android:id="@+id/video_view"        android:layout_width="match_parent"        android:layout_height="200dp"        android:layout_gravity="center_horizontal"        android:visibility="invisible"/>    <!--android:visibility="invisible"代表视图不可见。点击播放时才可见--></LinearLayout>

public class VideoListActivity extends AppCompatActivity {    protected RecyclerView mRecyclerView;    public static void startActivity(Context context) {        Intent intent = new Intent(context, VideoListActivity.class);        context.startActivity(intent);    }    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        super.setContentView(R.layout.activity_video_list);        initView();        List<String> pathList = new VideoBean().getPathList();        VideoListAdapter adapter = new VideoListAdapter(this, pathList);        mRecyclerView.setAdapter(adapter);    }    private void initView() {        mRecyclerView = (RecyclerView) findViewById(R.id.recycler_view);    }}

<LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:orientation="vertical"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="net.bwie.videoview.activity.VideoListActivity">    <android.support.v7.widget.RecyclerView        android:id="@+id/recycler_view"        android:layout_width="match_parent"        android:layout_height="match_parent"        app:layoutManager="android.support.v7.widget.LinearLayoutManager"/></LinearLayout>