基于IJKDanmakuFlameMaster的android 弹幕接入

首先import 弹幕包

import master.flame.danmaku.danmaku.util.SystemClock;import master.flame.danmaku.controller.IDanmakuView;import master.flame.danmaku.danmaku.loader.ILoader;import master.flame.danmaku.danmaku.loader.IllegalDataException;import master.flame.danmaku.danmaku.loader.android.DanmakuLoaderFactory;import master.flame.danmaku.danmaku.model.BaseDanmaku;import master.flame.danmaku.danmaku.model.DanmakuTimer;import master.flame.danmaku.danmaku.model.IDanmakus;import master.flame.danmaku.danmaku.model.IDisplayer;import master.flame.danmaku.danmaku.model.android.BaseCacheStuffer;import master.flame.danmaku.danmaku.model.android.DanmakuContext;import master.flame.danmaku.danmaku.model.android.Danmakus;import master.flame.danmaku.danmaku.model.android.SpannedCacheStuffer;import master.flame.danmaku.danmaku.parser.BaseDanmakuParser;import master.flame.danmaku.danmaku.parser.IDataSource;import master.flame.danmaku.danmaku.parser.android.BiliDanmukuParser;import master.flame.danmaku.danmaku.util.IOUtils;

定义全局变量

 private IDanmakuView mDanmakuView; private BaseDanmakuParser mParser; private DanmakuContext mContext;

启动单个线程加载远程图片

private BaseCacheStuffer.Proxy mCacheStufferAdapter = new BaseCacheStuffer.Proxy() {        private Drawable mDrawable;        @Override        public void prepareDrawing(final BaseDanmaku danmaku, boolean fromWorkerThread) {            if (danmaku.text instanceof Spanned) { // 根据你的条件检查是否需要需要更新弹幕                // FIXME 这里只是简单启个线程来加载远程url图片，请使用你自己的异步线程池，最好加上你的缓存池                new Thread() {                    @Override                    public void run() {                        String url = "http://vod.vbyte.cn/leifeng32.ico";                        InputStream inputStream = null;                        Drawable drawable = mDrawable;                        if(drawable == null) {                            try {                                URLConnection urlConnection = new URL(url).openConnection();                                inputStream = urlConnection.getInputStream();                                drawable = BitmapDrawable.createFromStream(inputStream, "bitmap");                                mDrawable = drawable;                            } catch (MalformedURLException e) {                                e.printStackTrace();                            } catch (IOException e) {                                e.printStackTrace();                            } finally {                                IOUtils.closeQuietly(inputStream);                            }                        }                        if (drawable != null) {                            drawable.setBounds(0, 0, 100, 100);                            SpannableStringBuilder spannable = createSpannable(drawable);                            danmaku.text = spannable;                            if(mDanmakuView != null) {                                mDanmakuView.invalidateDanmaku(danmaku, false);                            }                            return;                        }                    }                }.start();            }        }        @Override        public void releaseResource(BaseDanmaku danmaku) {            // TODO 重要:清理含有ImageSpan的text中的一些占用内存的资源 例如drawable        }    };

设置最大显示行数及是否进制重叠

HashMap<Integer, Integer> maxLinesPair = new HashMap<Integer, Integer>();// 滚动弹幕最大显示5行maxLinesPair.put(BaseDanmaku.TYPE_SCROLL_RL, 5); HashMap<Integer, Boolean> overlappingEnablePair = new HashMap<Integer, Boolean>();overlappingEnablePair.put(BaseDanmaku.TYPE_SCROLL_RL, true);overlappingEnablePair.put(BaseDanmaku.TYPE_FIX_TOP, true);

接下来初始化上面定义的最关键三个全局变量

mDanmakuView = (IDanmakuView) findViewById(R.id.sv_danmaku);mContext = DanmakuContext.create();mContext.setDanmakuStyle(IDisplayer.DANMAKU_STYLE_STROKEN,3)　　　　　.setDuplicateMergingEnabled(false)　　　　　.setScaleTextSize(1.2f)　　　　　// 图文混排使用SpannedCacheStuffer        .setCacheStuffer(new SpannedCacheStuffer(), mCacheStufferAdapter)         .setMaximumLines(maxLinesPair)        .preventOverlapping(overlappingEnablePair);          if (mDanmakuView != null) {          //很明显，这就是我们弹幕的显示资源            mParser = createParser(this.getResources().openRawResource(R.raw.comments));            mDanmakuView.setCallback(new master.flame.danmaku.controller.DrawHandler.Callback() {                @Override                public void updateTimer(DanmakuTimer timer) {                }                @Override                public void drawingFinished() {                }                @Override                public void danmakuShown(BaseDanmaku danmaku) {                }                @Override                public void prepared() {                    mDanmakuView.start();                }            });            mDanmakuView.setOnDanmakuClickListener(new IDanmakuView.OnDanmakuClickListener() {                @Override                public void onDanmakuClick(BaseDanmaku latest) {                }                @Override                public void onDanmakuClick(IDanmakus danmakus) {                }            });            mDanmakuView.prepare(mParser, mContext);            mDanmakuView.showFPS(true);            mDanmakuView.enableDanmakuDrawingCache(true);            ((View) mDanmakuView).setOnClickListener(new View.OnClickListener() {                @Override                public void onClick(View view) {                    mMediaController.setVisibility(View.VISIBLE);                }            });        }

下面是跟随播放器的一些弹幕库的暂定、播放、释放资源的操作

    @Override    protected void onPause() {        super.onPause();        if (mDanmakuView != null && mDanmakuView.isPrepared()) {            mDanmakuView.pause();        }    }    @Override    protected void onResume() {        super.onResume();        if (mDanmakuView != null && mDanmakuView.isPrepared() && mDanmakuView.isPaused()) {            mDanmakuView.resume();        }    }    @Override    protected void onDestroy() {        super.onDestroy();        if (mDanmakuView != null) {            // dont forget release!            mDanmakuView.release();            mDanmakuView = null;        }    }    @Override    public void onBackPressed() {        super.onBackPressed();        if (mDanmakuView != null) {            // dont forget release!            mDanmakuView.release();            mDanmakuView = null;        }    }

弹幕的一些属性操作，可用户自设置，易理解，不解释

mDanmakuView.hide();mDanmakuView.show();mDanmakuView.pause();mDanmakuView.resume();

来一条纯文本弹幕测试一下

 private void addDanmaku(boolean islive) {        BaseDanmaku danmaku = mContext.mDanmakuFactory.createDanmaku(BaseDanmaku.TYPE_SCROLL_RL);        if (danmaku == null || mDanmakuView == null) {            return;        }        danmaku.text = "这就是一条测试，至于你信不信，反正我是信了";        danmaku.padding = 5;        // 优先级，>0为高优先级不会被过滤器过滤，会被各种过滤器过滤并隐藏显示        danmaku.priority = 0;          danmaku.isLive = islive;        danmaku.time = mDanmakuView.getCurrentTime() + 1200;        danmaku.textSize = 25f * (mParser.getDisplayer().getDensity() - 0.6f);        danmaku.textColor = Color.RED;        danmaku.textShadowColor = Color.WHITE;        danmaku.underlineColor = Color.GREEN;        danmaku.borderColor = Color.GREEN;        mDanmakuView.addDanmaku(danmaku);    }

来一条图文混编的测试一下，SpannableStringBuilder
private void addDanmaKuShowTextAndImage(boolean islive) {

    BaseDanmaku danmaku = mContext.mDanmakuFactory.createDanmaku(BaseDanmaku.TYPE_SCROLL_RL);    Drawable drawable = getResources().getDrawable(R.drawable.ic_launcher);    drawable.setBounds(0, 0, 100, 100);    String text = "bitmap";    SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder(text);    ImageSpan span = new ImageSpan(drawable);//ImageSpan.ALIGN_BOTTOM);    spannableStringBuilder.setSpan(span, 0, text.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);    spannableStringBuilder.append("我只是个图文混排的测试");    spannableStringBuilder.setSpan(new BackgroundColorSpan(Color.parseColor("#8A2233B1")), 0, spannableStringBuilder.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);    //以上部分是与纯文本的区别，显示资源的区别    danmaku.text = spannable;    danmaku.padding = 5;    danmaku.priority = 1;  // 一定会显示, 一般用于本机发送的弹幕    danmaku.isLive = islive;    danmaku.time = mDanmakuView.getCurrentTime() + 1200;    danmaku.textSize = 25f * (mParser.getDisplayer().getDensity() - 0.6f);    danmaku.textColor = Color.RED;    danmaku.textShadowColor = 0; // 重要：如果有图文混排，最好不要设置描边(设textShadowColor=0)，否则会进行两次复杂的绘制导致运行效率降低    danmaku.underlineColor = Color.GREEN;    mDanmakuView.addDanmaku(danmaku);}