添加弹幕

效果图：

　　　　　　　　　　　　　　　　　　　　

 

1、  添加依赖

implementation 'com.github.ctiao:DanmakuFlameMaster:0.5.3'// bilibili 开源弹幕库

2、编写布局   DanmakuView  覆盖在 VideoView

<?xml version="1.0" encoding="utf-8"?> <LinearLayoutxmlns: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:id="@+id/activity_main"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".MainActivity"android:orientation="vertical"><RelativeLayoutandroid:layout_width="400dp"android:layout_height="400dp"><VideoViewandroid:id="@+id/video"android:layout_width="match_parent"android:layout_height="match_parent"android:layout_centerInParent="true"android:background="@android:color/white"/><master.flame.danmaku.ui.widget.DanmakuViewandroid:id="@+id/DanmakuView"android:layout_width="match_parent"android:layout_height="match_parent" /><LinearLayoutandroid:layout_alignParentBottom="true"android:id="@+id/operation_layout"android:layout_width="match_parent"android:orientation="horizontal"android:layout_height="50dp"><EditTextandroid:id="@+id/et"android:layout_width="0dp"android:layout_height="match_parent"android:layout_weight="1"/><ImageViewandroid:id="@+id/send"android:layout_width="wrap_content"android:layout_height="match_parent"app:srcCompat="@android:drawable/ic_menu_send" /></LinearLayout></RelativeLayout> </LinearLayout>

 

 

 

 

3、 编写相关逻辑

public class MainActivity extends AppCompatActivity {private static final String TAG = "MainActivity";private boolean showDanmaku;private DanmakuView danmakuView;private DanmakuContext danmakuContext;private BaseDanmakuParser parser = new BaseDanmakuParser() {@Overrideprotected IDanmakus parse() {return new Danmakus();}};/*** 添加弹幕* @param content* @param withBorder*/private void addDanmaku(String content,boolean withBorder){BaseDanmaku danmaku = danmakuContext.mDanmakuFactory.createDanmaku(BaseDanmaku.TYPE_SCROLL_LR);danmaku.text = content;danmaku.padding = 5;danmaku.textSize = 50;//DensityUtil.px2dip(MainActivity.this,100);danmaku.textColor = Color.BLACK;danmaku.setTime(danmakuView.getCurrentTime());if (withBorder){danmaku.borderColor = Color.GREEN;}danmakuView.addDanmaku(danmaku);}/*** 随机生成弹幕*/private void generateSomeDanmaku() {new Thread(new Runnable() {@Overridepublic void run() {while(showDanmaku){int time = new Random().nextInt(300);String content = ""+time+time;addDanmaku(content,false);try {Thread.sleep(time);} catch (InterruptedException e) {e.printStackTrace();}}}}).start();}/***暂停时 弹幕跟着暂停*/@Overrideprotected void onResume() {super.onResume();if (danmakuView!=null&&danmakuView.isPrepared()){danmakuView.resume();}}/*** 退出时销毁弹幕*/@Overrideprotected void onDestroy() {super.onDestroy();showDanmaku = false;if (danmakuView!=null){danmakuView.release();// 释放danmakuView = null;}}@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);VideoView videoView = findViewById(R.id.video);videoView.setVideoURI(Uri.parse("http://ips.ifeng.com/video.ifeng.com/video04/2011/03/24/480x360_offline20110324.mp4"));videoView.start();danmakuView=findViewById(R.id.DanmakuView);danmakuView.enableDanmakuDrawingCache(true);danmakuView.setCallback(new DrawHandler.Callback() {@Overridepublic void prepared() {showDanmaku = true;danmakuView.start();generateSomeDanmaku();}@Overridepublic void updateTimer(DanmakuTimer timer) { }@Overridepublic void danmakuShown(BaseDanmaku danmaku) { }@Overridepublic void drawingFinished() { }});danmakuContext = DanmakuContext.create();danmakuView.prepare(parser,danmakuContext);final LinearLayout operationLayout = findViewById(R.id.operation_layout);ImageView send = findViewById(R.id.send);final EditText editText = findViewById(R.id.et);danmakuView.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {if (operationLayout.getVisibility()==View.GONE){operationLayout.setVisibility(View.VISIBLE);}else {operationLayout.setVisibility(View.GONE);}}});send.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {String content = editText.getText().toString();if (!TextUtils.isEmpty(content)){addDanmaku(content,true);editText.setText("");}}});} }

 

转载于:https://www.cnblogs.com/the-wang/p/9059969.html

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