Android 视频播放器dkplayer-编程知识

gihub地址：

https://github.com/Doikki/DKVideoPlayer

GitHub - Doikki/DKVideoPlayer: Android Video Player. 安卓视频播放器，封装MediaPlayer、ExoPlayer、IjkPlayer。模仿抖音并实现预加载，列表播放，悬浮播放，广告播放，弹幕，视频水印，视频滤镜

列表播放如图所示：

一、依赖

     //添加RecyclerView的依赖包implementation 'androidx.recyclerview:recyclerview:1.2.1'// 异步加载图片依赖implementation 'com.squareup.picasso:picasso:2.5.2'// 上拉刷新、下来加载依赖implementation 'com.scwang.smartrefresh:SmartRefreshLayout:1.1.3'// --  Android:视频播放器dkplayer//# 必选，内部默认使用系统mediaplayer进行解码implementation 'com.github.dueeeke.dkplayer:dkplayer-java:3.2.6'//# 可选，包含StandardVideoController的实现implementation 'com.github.dueeeke.dkplayer:dkplayer-ui:3.2.6'//# 可选，使用exoplayer进行解码implementation 'com.github.dueeeke.dkplayer:player-exo:3.2.6'//# 可选，使用ijkplayer进行解码implementation 'com.github.dueeeke.dkplayer:player-ijk:3.2.6'//# 可选，如需要缓存或者抖音预加载功能请引入此库implementation 'com.github.dueeeke.dkplayer:videocache:3.2.6'

二、工具类

Tag.java

package com.chy.permission;/*** 播放器标签*/
public final class Tag {//列表播放public static final String LIST = "list";//无缝播放public static final String SEAMLESS = "seamless";//画中画public static final String PIP = "pip";
}

Utils.java

package com.chy.permission;import android.view.View;
import android.view.ViewParent;
import android.widget.FrameLayout;import com.dueeeke.videoplayer.player.VideoView;
import com.dueeeke.videoplayer.player.VideoViewConfig;
import com.dueeeke.videoplayer.player.VideoViewManager;import java.lang.reflect.Field;public final class Utils {private Utils() {}/*** 获取当前的播放核心*/public static Object getCurrentPlayerFactory() {VideoViewConfig config = VideoViewManager.getConfig();Object playerFactory = null;try {Field mPlayerFactoryField = config.getClass().getDeclaredField("mPlayerFactory");mPlayerFactoryField.setAccessible(true);playerFactory = mPlayerFactoryField.get(config);} catch (Exception e) {e.printStackTrace();}return playerFactory;}/*** 将View从父控件中移除*/public static void removeViewFormParent(View v) {if (v == null) return;ViewParent parent = v.getParent();if (parent instanceof FrameLayout) {((FrameLayout) parent).removeView(v);}}/*** Returns a string containing player state debugging information.*/public static String playState2str(int state) {String playStateString;switch (state) {default:case VideoView.STATE_IDLE:playStateString = "idle";break;case VideoView.STATE_PREPARING:playStateString = "preparing";break;case VideoView.STATE_PREPARED:playStateString = "prepared";break;case VideoView.STATE_PLAYING:playStateString = "playing";break;case VideoView.STATE_PAUSED:playStateString = "pause";break;case VideoView.STATE_BUFFERING:playStateString = "buffering";break;case VideoView.STATE_BUFFERED:playStateString = "buffered";break;case VideoView.STATE_PLAYBACK_COMPLETED:playStateString = "playback completed";break;case VideoView.STATE_ERROR:playStateString = "error";break;}return String.format("playState: %s", playStateString);}/*** Returns a string containing player state debugging information.*/public static String playerState2str(int state) {String playerStateString;switch (state) {default:case VideoView.PLAYER_NORMAL:playerStateString = "normal";break;case VideoView.PLAYER_FULL_SCREEN:playerStateString = "full screen";break;case VideoView.PLAYER_TINY_SCREEN:playerStateString = "tiny screen";break;}return String.format("playerState: %s", playerStateString);}}

VideoAdapter.java

package com.chy.demoprj.adapter;import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.TextView;import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;import com.chy.demoprj.R;
import com.dueeeke.videocontroller.component.PrepareView;
import com.squareup.picasso.Picasso;import java.util.HashMap;
import java.util.List;public class VideoAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {private Context context;private List<HashMap<String,String>> datas;private OnItemChildClickListener mOnItemChildClickListener;// 播放控件点击事件/*** 构造函数* */public VideoAdapter(Context context,List<HashMap<String,String>> datas){this.context = context;this.datas = datas;}@NonNull@Overridepublic RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent,int viewType) {View view = LayoutInflater.from(context).inflate(R.layout.item_video_layout,parent,false);ViewHolder viewHolder = new ViewHolder(view);return viewHolder;}@Overridepublic void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder,int position) {ViewHolder vh = (ViewHolder) holder;HashMap<String,String> entity = datas.get(position);// 设置播放占位图（不设置默认黑色）Picasso.with(context).load(entity.get("thumbUrl")).into(vh.mThumb);vh.mPosition = position;}@Overridepublic int getItemCount() {return datas.size();}public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{public FrameLayout mPlayerContainer;// 容器public PrepareView mPrepareView;// 播放视图public ImageView mThumb;// 缩略图public int mPosition;// 当前视图indexpublic ViewHolder(@NonNull View itemView) {super(itemView);mPlayerContainer = itemView.findViewById(R.id.player_container);mPrepareView = itemView.findViewById(R.id.prepare_view);mThumb = mPrepareView.findViewById(R.id.thumb);/*** 添加点击事件* */if (mOnItemChildClickListener != null) {mPlayerContainer.setOnClickListener(this);}//通过tag将ViewHolder和itemView绑定itemView.setTag(this);}@Overridepublic void onClick(View v) {if (v.getId() == R.id.player_container){if (mOnItemChildClickListener != null){mOnItemChildClickListener.onItemChildClick(mPosition);}}}}/*** 点击事件接口* */public interface OnItemChildClickListener{void onItemChildClick(int position);}/*** 点击事件回调函数* */public void setOnItemChildClickListener(OnItemChildClickListener onItemChildClickListener) {mOnItemChildClickListener = onItemChildClickListener;}}

三、布局

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<com.scwang.smartrefresh.layout.SmartRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:id="@+id/refreshLayout"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".MainActivity"><androidx.recyclerview.widget.RecyclerViewandroid:id="@+id/recyclerView"android:layout_width="match_parent"android:layout_height="match_parent"/></com.scwang.smartrefresh.layout.SmartRefreshLayout>

item_video_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="vertical"><FrameLayoutandroid:id="@+id/player_container"android:layout_width="match_parent"android:layout_height="187dp"android:layout_marginTop="8dp"android:background="@android:color/black"app:layout_constraintDimensionRatio="16:9"app:layout_constraintTop_toTopOf="parent"><com.dueeeke.videocontroller.component.PrepareViewandroid:id="@+id/prepare_view"android:layout_width="match_parent"android:layout_height="match_parent" /></FrameLayout></LinearLayout>

四、实现

package com.chy.demoprj;import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.Manifest;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.Toast;
import com.chy.demoprj.adapter.VideoAdapter;
import com.chy.permission.PermissionUtils;
import com.chy.permission.Tag;
import com.chy.permission.Utils;
import com.dueeeke.videocontroller.StandardVideoController;
import com.dueeeke.videocontroller.component.CompleteView;
import com.dueeeke.videocontroller.component.ErrorView;
import com.dueeeke.videocontroller.component.GestureView;
import com.dueeeke.videocontroller.component.TitleView;
import com.dueeeke.videocontroller.component.VodControlView;
import com.dueeeke.videoplayer.player.VideoView;
import com.dueeeke.videoplayer.player.VideoViewManager;
import com.scwang.smartrefresh.layout.api.RefreshLayout;
import com.scwang.smartrefresh.layout.listener.OnLoadMoreListener;
import com.scwang.smartrefresh.layout.listener.OnRefreshListener;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;public class MainActivity extends AppCompatActivity {private static final int REQUEST_PERMISSION_CODE = 0;// 权限所用// 动态申请权限private String[] permissions = {Manifest.permission.INTERNET,// 网络权限Manifest.permission.WRITE_EXTERNAL_STORAGE,// 写入数据权限Manifest.permission.READ_EXTERNAL_STORAGE,// 读取数据权限Manifest.permission.ACCESS_FINE_LOCATION,// 定位权限Manifest.permission.ACCESS_COARSE_LOCATION // 获取基站的服务信号权限，以便获取位置信息};private RefreshLayout refreshLayout;private RecyclerView recyclerView;// 列表private LinearLayoutManager layoutManager;private List<HashMap<String,String>> datas = new ArrayList<>();// 视频播放-控件protected VideoView mVideoView;protected StandardVideoController mController;protected ErrorView mErrorView;protected CompleteView mCompleteView;protected TitleView mTitleView;/*** 当前播放的位置* */protected int mCurPos = -1;/*** 上次播放的位置,用于页面切换回来继续播放* */protected int mLastPos = mCurPos;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);getPermission();initData();initControls();initVideoView();}/*** 权限* */private void getPermission(){boolean flage = PermissionUtils.hasPermissions(MainActivity.this,permissions);if (flage) {System.out.println("权限获取成功!");} else {PermissionUtils.requestPermissions(MainActivity.this, REQUEST_PERMISSION_CODE, permissions);}}/*** 数据初始化* */private void initData(){HashMap<String,String> hashMap = null;// 占位图String thumbUrl = "https://p1-xg.byteimg.com/img/tos-cn-p-0000/527b08d0f31d4705a4d8f4a72120948c~tplv-crop-center:1041:582.jpg";// 视频播放地址String playerUrl = "https://vd4.bdstatic.com/mda-pdhb52ikamv3bdb7/sc/cae_h264/1681819063478400576/mda-pdhb52ikamv3bdb7.mp4";// 循环添加数据for (int i=0,len=8;i<=len;i++){hashMap = new HashMap<>();hashMap.put("thumbUrl",thumbUrl);hashMap.put("playerUrl",playerUrl);hashMap.put("vtitle","播放标题"+i);datas.add(hashMap);}}/*** 初始化控件* */private void initControls(){refreshLayout = findViewById(R.id.refreshLayout);// 下拉刷新事件refreshLayout.setOnRefreshListener(new OnRefreshListener() {@Overridepublic void onRefresh(@NonNull RefreshLayout refreshLayout) {refreshLayout.finishRefresh(2000/*,false*/);// 传入false表示刷新失败}});// 上拉加载事件refreshLayout.setOnLoadMoreListener(new OnLoadMoreListener() {@Overridepublic void onLoadMore(@NonNull RefreshLayout refreshLayout) {refreshLayout.finishLoadMore(2000/*,false*/);// 传入false表示加载失败runOnUiThread(new Runnable() {@Overridepublic void run() {Toast.makeText(getApplication(),"没有更多数据",Toast.LENGTH_SHORT).show();}});}});recyclerView = findViewById(R.id.recyclerView);// 设置布局layoutManager = new LinearLayoutManager(this);layoutManager.setOrientation(LinearLayoutManager.VERTICAL);recyclerView.setLayoutManager(layoutManager);// 配置器VideoAdapter videoAdapter = new VideoAdapter(this,datas);// 设置点击事件videoAdapter.setOnItemChildClickListener(new VideoAdapter.OnItemChildClickListener() {@Overridepublic void onItemChildClick(int position) {/*** PrepareView被点击*/startPlay(position);}});recyclerView.setAdapter(videoAdapter);// RecyclerView监听事件recyclerView.addOnChildAttachStateChangeListener(new RecyclerView.OnChildAttachStateChangeListener() {@Overridepublic void onChildViewAttachedToWindow(@NonNull View view) {}@Overridepublic void onChildViewDetachedFromWindow(@NonNull View view) {FrameLayout playerContainer = view.findViewById(R.id.player_container);View v = playerContainer.getChildAt(0);if (v != null && v == mVideoView && !mVideoView.isFullScreen()){releaseVideoView();}}});}/*** 播放控件初始化* */protected void initVideoView() {mVideoView = new VideoView(this);mVideoView.setOnStateChangeListener(new VideoView.SimpleOnStateChangeListener() {@Overridepublic void onPlayStateChanged(int playState) {//监听VideoViewManager释放，重置状态if (playState == com.dueeeke.videoplayer.player.VideoView.STATE_IDLE) {Utils.removeViewFormParent(mVideoView);mLastPos = mCurPos;mCurPos = -1;}}});mController = new StandardVideoController(this);mErrorView = new ErrorView(this);mController.addControlComponent(mErrorView);mCompleteView = new CompleteView(this);mController.addControlComponent(mCompleteView);mTitleView = new TitleView(this);mController.addControlComponent(mTitleView);mController.addControlComponent(new VodControlView(this));mController.addControlComponent(new GestureView(this));mController.setEnableOrientation(true);mVideoView.setVideoController(mController);}@Overridepublic void onPause() {super.onPause();pause();}/*** 由于onPause必须调用super。故增加此方法，* 子类将会重写此方法，改变onPause的逻辑*/protected void pause() {releaseVideoView();}@Overridepublic void onResume() {super.onResume();resume();}/*** 由于onResume必须调用super。故增加此方法，* 子类将会重写此方法，改变onResume的逻辑*/protected void resume() {if (mLastPos == -1)return;//恢复上次播放的位置startPlay(mLastPos);}/*** 开始播放** @param position 列表位置*/protected void startPlay(int position) {if (mCurPos == position) return;if (mCurPos != -1) {releaseVideoView();}HashMap<String,String> entity = datas.get(position);//边播边存
//        String proxyUrl = ProxyVideoCacheManager.getProxy(getActivity()).getProxyUrl(videoBean.getUrl());
//        mVideoView.setUrl(proxyUrl);String playurl = entity.get("playerUrl");mVideoView.setUrl(playurl);mTitleView.setTitle(entity.get("vtitle"));View itemView = layoutManager.findViewByPosition(position);if (itemView == null) return;VideoAdapter.ViewHolder viewHolder = (VideoAdapter.ViewHolder) itemView.getTag();//把列表中预置的PrepareView添加到控制器中，注意isPrivate此处只能为true。mController.addControlComponent(viewHolder.mPrepareView, true);Utils.removeViewFormParent(mVideoView);viewHolder.mPlayerContainer.addView(mVideoView, 0);//播放之前将VideoView添加到VideoViewManager以便在别的页面也能操作它getVideoViewManager().add(mVideoView, Tag.LIST);mVideoView.start();mCurPos = position;}/*** 释放播放控件* */private void releaseVideoView() {mVideoView.release();if (mVideoView.isFullScreen()) {mVideoView.stopFullScreen();}if (this.getRequestedOrientation() != ActivityInfo.SCREEN_ORIENTATION_PORTRAIT) {this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);}mCurPos = -1;}/*** 创建播放管理类* */protected VideoViewManager getVideoViewManager(){return VideoViewManager.instance();}}