开弹幕卡顿的原因

package com.sample;

import java.io.IOException;

import java.io.InputStream;

import java.net.MalformedURLException;

import java.net.URL;

import java.net.URLConnection;

import java.util.HashMap;

import java.util.Timer;

import java.util.TimerTask;

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;

import master.flame.danmaku.danmaku.util.SystemClock;

import tv.danmaku.ijk.media.player.IMediaPlayer;

import tv.danmaku.ijk.media.player.IMediaPlayer.OnPreparedListener;

import tv.danmaku.ijk.media.player.IjkMediaPlayer;

import android.app.Activity;

import android.content.pm.ActivityInfo;

import android.graphics.Canvas;

import android.graphics.Color;

import android.graphics.Paint;

import android.graphics.drawable.BitmapDrawable;

import android.graphics.drawable.Drawable;

import android.os.Bundle;

import android.text.Spannable;

import android.text.SpannableStringBuilder;

import android.text.Spanned;

import android.text.TextPaint;

import android.text.style.BackgroundColorSpan;

import android.text.style.ImageSpan;

import android.util.Log;

import android.view.Menu;

import android.view.View;

import android.widget.Button;

import android.widget.PopupWindow;

public class MainActivity extends Activity implements View.OnClickListener {

private IDanmakuView mDanmakuView;

private View mMediaController;

public PopupWindow mPopupWindow;

private Button mBtnRotate;

private Button mBtnHideDanmaku;

private Button mBtnShowDanmaku;

private BaseDanmakuParser mParser;

private Button mBtnPauseDanmaku;

private Button mBtnResumeDanmaku;

private Button mBtnSendDanmaku;

private Button mBtnSendDanmakuTextAndImage;

private Button mBtnSendDanmakus;

private DanmakuContext mContext;

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://www.bilibili.com/favicon.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

}

};

/**

* 绘制背景(自定义弹幕样式)

*/

private static class BackgroundCacheStuffer extends SpannedCacheStuffer {

// 通过扩展SimpleTextCacheStuffer或SpannedCacheStuffer个性化你的弹幕样式

final Paint paint = new Paint();

@Override

public void measure(BaseDanmaku danmaku, TextPaint paint,

boolean fromWorkerThread) {

danmaku.padding = 10; // 在背景绘制模式下增加padding

super.measure(danmaku, paint, fromWorkerThread);

}

@Override

public void drawBackground(BaseDanmaku danmaku, Canvas canvas,

float left, float top) {

paint.setColor(0x8125309b);

canvas.drawRect(left + 2, top + 2, left + danmaku.paintWidth - 2,

top + danmaku.paintHeight - 2, paint);

}

@Override

public void drawStroke(BaseDanmaku danmaku, String lineText,

Canvas canvas, float left, float top, Paint paint) {

// 禁用描边绘制

}

}

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

findViews();

}

private BaseDanmakuParser createParser(InputStream stream) {

if (stream == null) {

return new BaseDanmakuParser() {

@Override

protected Danmakus parse() {

return new Danmakus();

}

};

}

ILoader loader = DanmakuLoaderFactory

.create(DanmakuLoaderFactory.TAG_BILI);

try {

loader.load(stream);

} catch (IllegalDataException e) {

e.printStackTrace();

}

BaseDanmakuParser parser = new BiliDanmukuParser();

IDataSource> dataSource = loader.getDataSource();

parser.load(dataSource);

return parser;

}

private void findViews() {

mMediaController = findViewById(R.id.media_controller);

mBtnRotate = (Button) findViewById(R.id.rotate);

mBtnHideDanmaku = (Button) findViewById(R.id.btn_hide);

mBtnShowDanmaku = (Button) findViewById(R.id.btn_show);

mBtnPauseDanmaku = (Button) findViewById(R.id.btn_pause);

mBtnResumeDanmaku = (Button) findViewById(R.id.btn_resume);

mBtnSendDanmaku = (Button) findViewById(R.id.btn_send);

mBtnSendDanmakuTextAndImage = (Button) findViewById(R.id.btn_send_image_text);

mBtnSendDanmakus = (Button) findViewById(R.id.btn_send_danmakus);

mBtnRotate.setOnClickListener(this);

mBtnHideDanmaku.setOnClickListener(this);

mMediaController.setOnClickListener(this);

mBtnShowDanmaku.setOnClickListener(this);

mBtnPauseDanmaku.setOnClickListener(this);

mBtnResumeDanmaku.setOnClickListener(this);

mBtnSendDanmaku.setOnClickListener(this);

mBtnSendDanmakuTextAndImage.setOnClickListener(this);

mBtnSendDanmakus.setOnClickListener(this);

// init player

IjkMediaPlayer.loadLibrariesOnce(null);

IjkMediaPlayer.native_profileBegin("libijkplayer.so");

// VideoView

final IjkVideoView mVideoView = (IjkVideoView) findViewById(R.id.videoview);

// DanmakuView

// 设置最大显示行数

HashMap maxLinesPair = new HashMap();

maxLinesPair.put(BaseDanmaku.TYPE_SCROLL_RL, 5); // 滚动弹幕最大显示5行

// 设置是否禁止重叠

HashMap overlappingEnablePair = new HashMap();

overlappingEnablePair.put(BaseDanmaku.TYPE_SCROLL_RL, true);

overlappingEnablePair.put(BaseDanmaku.TYPE_FIX_TOP, true);

mDanmakuView = (IDanmakuView) findViewById(R.id.sv_danmaku);

mContext = DanmakuContext.create();

mContext.setDanmakuStyle(IDisplayer.DANMAKU_STYLE_STROKEN, 3)

.setDuplicateMergingEnabled(false)

.setScrollSpeedFactor(1.2f)

.setScaleTextSize(1.2f)

.setCacheStuffer(new SpannedCacheStuffer(),

mCacheStufferAdapter)

// 图文混排使用SpannedCacheStuffer

// .setCacheStuffer(new BackgroundCacheStuffer()) //

// 绘制背景使用BackgroundCacheStuffer

.setMaximumLines(maxLinesPair)

.preventOverlapping(overlappingEnablePair);

if (mDanmakuView != null) {

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) {

// Log.d("DFM", "danmakuShown(): text=" +

// danmaku.text);

}

@Override

public void prepared() {

mDanmakuView.start();

}

});

mDanmakuView

.setOnDanmakuClickListener(new IDanmakuView.OnDanmakuClickListener() {

@Override

public boolean onDanmakuClick(IDanmakus danmakus) {

Log.d("DFM", "onDanmakuClick: danmakus size:"

+ danmakus.size());

BaseDanmaku latest = danmakus.last();

if (null != latest) {

Log.d("DFM",

"onDanmakuClick: text of latest danmaku:"

+ latest.text);

return true;

}

return false;

}

@Override

public boolean onViewClick(IDanmakuView view) {

mMediaController.setVisibility(View.VISIBLE);

return false;

}

});

mDanmakuView.prepare(mParser, mContext);

mDanmakuView.showFPS(true);

mDanmakuView.enableDanmakuDrawingCache(true);

}

if (mVideoView != null) {

mVideoView.setOnPreparedListener(new OnPreparedListener() {

@Override

public void onPrepared(IMediaPlayer mp) {

mVideoView.start();

}

});

mVideoView

.setVideoPath("http://bj.video.baladiguo.com/video_480/4bd706ed230deebe5696dde3b592b851.mp4?OSSAccessKeyId=0EBRRPeWqt4QcQ7s&Expires=1477558360&Signature=6rtvkZFeVxuuCTPNXp4wKCHKXiQ%3D");

}

}

@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

public void onBackPressed() {

super.onBackPressed();

if (mDanmakuView != null) {

// dont forget release!

mDanmakuView.release();

mDanmakuView = null;

}

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

getMenuInflater().inflate(R.menu.main, menu);

return true;

}

@Override

public void onClick(View v) {

if (v == mMediaController) {

mMediaController.setVisibility(View.GONE);

}

if (mDanmakuView == null || !mDanmakuView.isPrepared())

return;

if (v == mBtnRotate) {

setRequestedOrientation(getRequestedOrientation() == ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE ? ActivityInfo.SCREEN_ORIENTATION_PORTRAIT

: ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

} else if (v == mBtnHideDanmaku) {

mDanmakuView.hide();

// mPausedPosition = mDanmakuView.hideAndPauseDrawTask();

} else if (v == mBtnShowDanmaku) {

mDanmakuView.show();

// mDanmakuView.showAndResumeDrawTask(mPausedPosition); // sync to

// the video time in your practice

} else if (v == mBtnPauseDanmaku) {

mDanmakuView.pause();

} else if (v == mBtnResumeDanmaku) {

mDanmakuView.resume();

} else if (v == mBtnSendDanmaku) {

addDanmaku(false);

} else if (v == mBtnSendDanmakuTextAndImage) {

addDanmaKuShowTextAndImage(false);

} else if (v == mBtnSendDanmakus) {

Boolean b = (Boolean) mBtnSendDanmakus.getTag();

timer.cancel();

if (b == null || !b) {

mBtnSendDanmakus.setText(R.string.cancel_sending_danmakus);

timer = new Timer();

timer.schedule(new AsyncAddTask(), 0, 1000);

mBtnSendDanmakus.setTag(true);

} else {

mBtnSendDanmakus.setText(R.string.send_danmakus);

mBtnSendDanmakus.setTag(false);

}

}

}

Timer timer = new Timer();

class AsyncAddTask extends TimerTask {

@Override

public void run() {

for (int i = 0; i < 20; i++) {

addDanmaku(true);

SystemClock.sleep(20);

}

}

};

private void addDanmaku(boolean islive) {

BaseDanmaku danmaku = mContext.mDanmakuFactory

.createDanmaku(BaseDanmaku.TYPE_SCROLL_RL);

if (danmaku == null || mDanmakuView == null) {

return;

}

// for(int i=0;i<100;i++){

// }

danmaku.text = "这是一条弹幕" + System.nanoTime();

danmaku.padding = 5;

danmaku.priority = 0; // 可能会被各种过滤器过滤并隐藏显示

danmaku.isLive = islive;

danmaku.setTime(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);

}

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);

SpannableStringBuilder spannable = createSpannable(drawable);

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.setTime(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);

}

private SpannableStringBuilder createSpannable(Drawable drawable) {

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("图文混排");

spannableStringBuilder.setSpan(

new BackgroundColorSpan(Color.parseColor("#8A2233B1")), 0,

spannableStringBuilder.length(),

Spannable.SPAN_INCLUSIVE_INCLUSIVE);

return spannableStringBuilder;

}

@Override

protected void onDestroy() {

super.onDestroy();

IjkMediaPlayer.native_profileEnd();

if (mDanmakuView != null) {

// dont forget release!

mDanmakuView.release();

mDanmakuView = null;

}

}

}

里面使用的ijkplayer就是官方的ijkplayer的demo里的文件 ，直接复制过来的，如果需要demo加我的qq就是我的名字的号码