Retrofit+RxJava+Mvp实现多线程视频下载

依赖的导入：

compile'io.reactivex.rxjava2:rxjava:2.1.1'
compile'io.reactivex.rxjava2:rxandroid:2.0.1'
//retrofit
compile'com.squareup.retrofit2:retrofit:2.2.0'
//Gsonconverter
compile'com.squareup.retrofit2:converter-gson:2.2.0'
//RxJava2Adapter
compile'com.squareup.retrofit2:adapter-rxjava2:2.2.0'
//okhttp
compile'com.squareup.okhttp3:okhttp:3.6.0'
implementation'com.android.support:recyclerview-v7:26.1.0'
compile'com.youth.banner:banner:1.4.9'
compile'com.github.bumptech.glide:glide:3.7.0'
compile'com.facebook.fresco:fresco:0.11.0'
compile(name:'ijkplayer-java-release',ext:'aar')
compile'org.greenrobot:greendao:3.2.0'

第一步：注解@Streaming/*大文件需要加入这个判断，防止下载过程中写入到内存中*/@GET//我们在下载文件的时候，需要传回range值来继续下载 Observable<ResponseBody>download(@Header("RANGE")Stringstart,@UrlStringurl);

第二步：封装Retrofit

publicclassBaseService{
//okhttp的简单实例，如果我们加拦截器的话，就配上用场了
privatestaticOkHttpClient.BuilderhttpClient=newOkHttpClient.Builder();
//实例retrofit
privatestaticRetrofit.Builderbuilder=
newRetrofit.Builder()
.baseUrl("http://result.eolinker.com/")
.addConverterFactory(GsonConverterFactory.create())
.addCallAdapterFactory(RxJava2CallAdapterFactory.create());
//创建一个方法，提供外部创建retrofit
publicstatic<S>ScreateService(Class<S>serviceClass){
Retrofitretrofit=builder.client(httpClient.build()).build();
returnretrofit.create(serviceClass);
}
}

第三步：model层处理下载问题
//这个方法使我们实现model接口中的那个方法

Stringurl3="";

@Override
publicvoidgetData(Stringstart,Stringurl,
4000
finalStringurl2,finalGetCallbackcallback){
this.url3=url;
//调用我们自己创建的retrofit中的方法
BaseService.createService(GetInterface.class).download(start,url3)
.subscribeOn(Schedulers.io())
//可以不写在主线程，
 .observeOn(AndroidSchedulers.mainThread())
.subscribe(newObserver<ResponseBody>(){
@Override
publicvoidonSubscribe(Disposabled){

}

@Override
publicvoidonNext(ResponseBodyresponseBody){
//获取文件的总长度
finallongl=responseBody.contentLength();
Log.i("=====length=====","onNext:"+l);
//调用文件的长度
 downloadfile(l,url2);
}

@Override
publicvoidonError(Throwablee){

}

@Override
publicvoidonComplete(){

}
});
}
//传来的参数是我们文件的总长度和我们文件下载的路径
publicvoiddownloadfile(longlength,Stringurl2){
finalFilefile=newFile(url2);
if(!file.exists()){
try{
file.createNewFile();
}catch(IOExceptione){
e.printStackTrace();
}
}

intthreadNum=5;
longblockSize=length/threadNum;
longstartPosition=0;
longend=0;
////四舍五入---让一个数字+0。5在四舍五入就变成向上取整
//计算出下载块以后创建线程执行下载操作
for(inti=0;i<threadNum;i++){
//在下载之前，我们先判断一下数据库有没有值，因为断点续传我们暂停后会有数据保存到数据库
 List<Bean2>cityInfoList=DBHelper.getInstance(context).getCityInfoList(i);
//如果有的话，我们将数据库中的数据查询出来，然后对我们下载的开始值和结束值进行赋值
 if(cityInfoList.size()>0){
Longrange=cityInfoList.get(0).getRange();
Longend1=cityInfoList.get(0).getEnd();
startPosition=range;
end=end1;
Log.i("=====","downloadFile:"+startPosition+"=="+end);
}else{
//如果没有值的话我们要计算它的长度，然后给开始结束的位置进行赋值
 startPosition=blockSize*i;
//让最后一个线程下载的大小是正好的，总长度-除了最后一个块的大小和
if(i==threadNum-1){
blockSize=length-blockSize*(threadNum-1);
}
//然后将我们计算好的中存放到数据库
 end=startPosition+blockSize-1;
Bean2bean2=newBean2();
bean2.setThreadNum(i+"");
bean2.setRange(startPosition);
bean2.setEnd(end);
//数据库方法，插入的
 DBHelper.getInstance(context).addToCityInfoTable(bean2);
}
//开启下载的任务
 downloadTask(startPosition,file,end,length,i);
}

}}第4步：

downloadTask方法：

publicvoiddownloadTask(finallongstartPosition,finalFilefile,longend,finallonglength,finalinti){
//计算开始位置
Stringrange="bytes="+startPosition+"-"+end;
BaseService.createService(GetInterface.class).download(range,url3)
.subscribeOn(Schedulers.io())
.observeOn(Schedulers.io())
.subscribe(newObserver<ResponseBody>(){
@Override
publicvoidonSubscribe(Disposabled){
}

@Override
publicvoidonNext(ResponseBodyresponseBody){
///文件的输入流
 BufferedInputStreambis=null;
//写入文件的地址
 RandomAccessFileraf=null;
try{
bis=newBufferedInputStream(responseBody.byteStream());
raf=newRandomAccessFile(file,"rwd");
raf.seek(startPosition);
byte[]buff=newbyte[1024*8];
intlen=0;
longlength2=0;
List<Bean2>cityInfoList=DBHelper.getInstance(context).getCityInfoList(i);
if(cityInfoList.size()>0){
length2=cityInfoList.get(0).getRange();
Log.i("=====继续length2=======","onNext:"+length2);
}
while((len=bis.read(buff))!=-1){
Log.i("===循环继续====","onNext:");
//正在下载的判断
 if(stateDownload==DOWNLOAD_ING){
Log.i("===继续下载====","onNext:");
length2+=len;
raf.write(buff,0,len);
handler.sendEmptyMessage((int)length2);
//当我们点击暂停的时候，我们要改变状态。当我们点击继续的时候，我们一定要记得把状态值改变回下载的状态，（本人就是犯了这么个地级错误）
 }elseif(stateDownload==DOWNLOAD_PAUSE){
//更新数据库
DBHelper.getInstance(context).updateInfo(i,length2);
break;
}
}
}catch(IOExceptione){
e.printStackTrace();
}finally{
if(bis!=null){
try{
bis.close();
}catch(IOExceptione){
e.printStackTrace();
}
}
if(raf!=null){
try{
raf.close();
}catch(IOExceptione){
e.printStackTrace();
}
}
}
}

@Override
publicvoidonError(Throwablee){
}

@Override
publicvoidonComplete(){
}
});

第5步：接口改变状态值：
//暂停

@Override
publicvoidstop(){
stateDownload=DOWNLOAD_PAUSE;
}
//继续
@Override
publicvoidjixu(){
stateDownload=DOWNLOAD_ING;
}

@Override
publicvoidgetProgress(){

}

//集成GreenDao

publicclassDBHelper{
privatestaticContextmContext;
privatestaticDBHelperinstance;
Bean2Daobean2Dao;
Bean2bean;
//使用单例模式
 privateDBHelper(){
}
publicstaticDBHelpergetInstance(Contextcontext){
if(instance==null){
instance=newDBHelper();
if(mContext==null){
mContext=context;
}

//数据库对象
//数据库对象
DaoMaster.DevOpenHelperdevOpenHelper=newDaoMaster.DevOpenHelper(mContext,"student.db",null);
DaoMasterdaoMaster=newDaoMaster(devOpenHelper.getWritableDb());
DaoSessiondaoSession=daoMaster.newSession();
instance.bean2Dao=daoSession.getBean2Dao();
}
returninstance;
}
/**添加数据*/
publicvoidaddToCityInfoTable(Bean2item)
{
bean2Dao.insert(item);
}
/**查询*/

/**通过我们的线程数量号进行查询*/
publicList<Bean2>getCityInfoList(intthreadNum){
QueryBuilder<Bean2>qb=bean2Dao.queryBuilder();
qb.where(Bean2Dao.Properties.ThreadNum.eq(threadNum));
List<Bean2>list=qb.list();
Log.i("========","getCityInfoList:"+list);
returnlist;
}
//更新数据库的方法
publicvoidupdateInfo(intid,longrang){
QueryBuilder<Bean2>qb=bean2Dao.queryBuilder();
qb.where(Bean2Dao.Properties.ThreadNum.eq(id));
List<Bean2>list=qb.list();
Bean2bean2=list.get(0);
bean2.setRange(rang);
bean2Dao.update(bean2);
}
}

//bean类

@Entity
publicclassBean2{
@Id
privateLongid;
@Property(nameInDb="RANGE")
privateLongrange;
@Property(nameInDb="END")
privateLongend;
@Property(nameInDb="ThREADNUM")
privateStringThreadNum;

第5步：视频播放：

compile(name:'ijkplayer-java-release',ext:'aar')

android{compileSdkVersion26defaultConfig{applicationId"com.bwie.mcowu.lx_zhouthree"minSdkVersion19targetSdkVersion26versionCode1versionName"1.0"testInstrumentationRunner"android.support.test.runner.AndroidJUnitRunner"}buildTypes{release{minifyEnabledfalseproguardFilesgetDefaultProguardFile('proguard-android.txt'),'proguard-rules.pro'}}sourceSets{main{jniLibs.srcDirs=['libs']}}}repositories{mavenCentral()flatDir{dirs'libs'//thiswaywecanfindthe.aarfileinlibsfolder}}

第五步：

/***日志工具类在发布时不显示日志*@authorRANDY_ZHANG*/publicclassDebugLog{staticStringclassName;staticStringmethodName;staticintlineNumber;privateDebugLog(){/*Protectfrominstantiations*/}publicstaticbooleanisDebuggable(){returnBuildConfig.DEBUG;}privatestaticStringcreateLog(Stringlog){StringBufferbuffer=newStringBuffer();buffer.append("[");buffer.append(methodName);buffer.append(":");buffer.append(lineNumber);buffer.append("]");buffer.append(log);returnbuffer.toString();}privatestaticvoidgetMethodNames(StackTraceElement[]sElements){className=sElements[1].getFileName();methodName=sElements[1].getMethodName();lineNumber=sElements[1].getLineNumber();}publicstaticvoide(Stringmessage){if(!isDebuggable())return;//ThrowableinstancemustbecreatedbeforeanymethodsgetMethodNames(newThrowable().getStackTrace());Log.e(className,createLog(message));}publicstaticvoidi(Stringmessage){if(!isDebuggable())return;getMethodNames(newThrowable().getStackTrace());Log.i(className,createLog(message));}publicstaticvoidd(Stringmessage){if(!isDebuggable())return;getMethodNames(newThrowable().getStackTrace());Log.d(className,createLog(message));}publicstaticvoidv(Stringmessage){if(!isDebuggable())return;getMethodNames(newThrowable().getStackTrace());Log.v(className,createLog(message));}publicstaticvoidw(Stringmessage){if(!isDebuggable())return;getMethodNames(newThrowable().getStackTrace());Log.w(className,createLog(message));}publicstaticvoidwtf(Stringmessage){if(!isDebuggable())return;getMethodNames(newThrowable().getStackTrace());Log.wtf(className,createLog(message));}}第六步：playManager

publicclassPlayerManager{/***可能会剪裁,保持原视频的大小，显示在中心,当原视频的大小超过view的大小超过部分裁剪处理*/publicstaticfinalStringSCALETYPE_FITPARENT="fitParent";/***可能会剪裁,等比例放大视频，直到填满View为止,超过View的部分作裁剪处理*/publicstaticfinalStringSCALETYPE_FILLPARENT="fillParent";/***将视频的内容完整居中显示，如果视频大于view,则按比例缩视频直到完全显示在view中*/publicstaticfinalStringSCALETYPE_WRAPCONTENT="wrapContent";/***不剪裁,非等比例拉伸画面填满整个View*/publicstaticfinalStringSCALETYPE_FITXY="fitXY";/***不剪裁,非等比例拉伸画面到16:9,并完全显示在View中*/publicstaticfinalStringSCALETYPE_16_9="16:9";/***不剪裁,非等比例拉伸画面到4:3,并完全显示在View中*/publicstaticfinalStringSCALETYPE_4_3="4:3";/***状态常量*/privatefinalintSTATUS_ERROR=-1;privatefinalintSTATUS_IDLE=0;privatefinalintSTATUS_LOADING=1;privatefinalintSTATUS_PLAYING=2;privatefinalintSTATUS_PAUSE=3;privatefinalintSTATUS_COMPLETED=4;privatefinalActivityactivity;privatefinalIjkVideoViewvideoView;privatefinalAudioManageraudioManager;publicGestureDetectorgestureDetector;privatebooleanplayerSupport;privatebooleanisLive=false;//是否为直播privatebooleanfullScreenOnly;privatebooleanportrait;privatefinalintmMaxVolume;privateintscreenWidthPixels;privateintcurrentPosition;privateintstatus=STATUS_IDLE;privatelongpauseTime;privateStringurl;privatefloatbrightness=-1;privateintvolume=-1;privatelongnewPosition=-1;privatelongdefaultRetryTime=5000;privateOrientationEventListenerorientationEventListener;privatePlayerStateListenerplayerStateListener;publicvoidsetPlayerStateListener(PlayerStateListenerplayerStateListener){this.playerStateListener=playerStateListener;}privateOnErrorListeneronErrorListener=newOnErrorListener(){@OverridepublicvoidonError(intwhat,intextra){}};privateOnCompleteListeneronCompleteListener=newOnCompleteListener(){@OverridepublicvoidonComplete(){}};privateOnInfoListeneronInfoListener=newOnInfoListener(){@OverridepublicvoidonInfo(intwhat,intextra){}};privateOnControlPanelVisibilityChangeListeneronControlPanelVisibilityChangeListener=newOnControlPanelVisibilityChangeListener(){@Overridepublicvoidchange(booleanisShowing){}};/***trytoplaywhenerror(onlyforlivevideo)*@paramdefaultRetryTimemillisecond,0willstopretry,defaultis5000millisecond*/publicvoidsetDefaultRetryTime(longdefaultRetryTime){this.defaultRetryTime=defaultRetryTime;}publicPlayerManager(finalActivityactivity){try{IjkMediaPlayer.loadLibrariesOnce(null);IjkMediaPlayer.native_profileBegin("libijkplayer.so");playerSupport=true;}catch(Throwablee){Log.e("GiraffePlayer","loadLibrarieserror",e);}this.activity=activity;screenWidthPixels=activity.getResources().getDisplayMetrics().widthPixels;videoView=(IjkVideoView)activity.findViewById(R.id.video_view);videoView.setOnCompletionListener(newIMediaPlayer.OnCompletionListener(){@OverridepublicvoidonCompletion(IMediaPlayermp){statusChange(STATUS_COMPLETED);onCompleteListener.onComplete();}});videoView.setOnErrorListener(newIMediaPlayer.OnErrorListener(){@OverridepublicbooleanonError(IMediaPlayermp,intwhat,intextra){statusChange(STATUS_ERROR);onErrorListener.onError(what,extra);returntrue;}});videoView.setOnInfoListener(newIMediaPlayer.OnInfoListener(){@OverridepublicbooleanonInfo(IMediaPlayermp,intwhat,intextra){switch(what){caseIMediaPlayer.MEDIA_INFO_BUFFERING_START:statusChange(STATUS_LOADING);break;caseIMediaPlayer.MEDIA_INFO_BUFFERING_END:statusChange(STATUS_PLAYING);break;caseIMediaPlayer.MEDIA_INFO_NETWORK_BANDWIDTH://显示下载速度//Toast.show("downloadrate:"+extra);break;caseIMediaPlayer.MEDIA_INFO_VIDEO_RENDERING_START:statusChange(STATUS_PLAYING);break;default:break;}onInfoListener.onInfo(what,extra);returnfalse;}});audioManager=(AudioManager)activity.getSystemService(Context.AUDIO_SERVICE);mMaxVolume=audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);gestureDetector=newGestureDetector(activity,newPlayerGestureListener());if(fullScreenOnly){activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);}portrait=getScreenOrientation()==ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;if(!playerSupport){DebugLog.e("","播放器不支持此设备");}}privatevoidstatusChange(intnewStatus){status=newStatus;if(!isLive&&newStatus==STATUS_COMPLETED){DebugLog.d("","statusChangeSTATUS_COMPLETED...");if(playerStateListener!=null){playerStateListener.onComplete();}}elseif(newStatus==STATUS_ERROR){DebugLog.d("","statusChangeSTATUS_ERROR...");if(playerStateListener!=null){playerStateListener.onError();}}elseif(newStatus==STATUS_LOADING){//$.id(R.id.app_video_loading).visible();if(playerStateListener!=null){playerStateListener.onLoading();}DebugLog.d("","statusChangeSTATUS_LOADING...");}elseif(newStatus==STATUS_PLAYING){DebugLog.d("","statusChangeSTATUS_PLAYING...");if(playerStateListener!=null){playerStateListener.onPlay();}}}publicvoidonPause(){pauseTime=System.currentTimeMillis();if(status==STATUS_PLAYING){videoView.pause();if(!isLive){currentPosition=videoView.getCurrentPosition();}}}publicvoidonResume(){pauseTime=0;if(status==STATUS_PLAYING){if(isLive){videoView.seekTo(0);}else{if(currentPosition>0){videoView.seekTo(currentPosition);}}videoView.start();}}publicvoidonDestroy(){orientationEventListener.disable();videoView.stopPlayback();}publicvoidplay(Stringurl){this.url=url;if(playerSupport){videoView.setVideoPath(url);videoView.start();}}privateStringgenerateTime(longtime){inttotalSeconds=(int)(time/1000);intseconds=totalSeconds%60;intminutes=(totalSeconds/60)%60;inthours=totalSeconds/3600;returnhours>0?String.format("%02d:%02d:%02d",hours,minutes,seconds):String.format("%02d:%02d",minutes,seconds);}privateintgetScreenOrientation(){introtation=activity.getWindowManager().getDefaultDisplay().getRotation();DisplayMetricsdm=newDisplayMetrics();activity.getWindowManager().getDefaultDisplay().getMetrics(dm);intwidth=dm.widthPixels;intheight=dm.heightPixels;intorientation;//ifthedevice'snaturalorientationisportrait:if((rotation==Surface.ROTATION_0||rotation==Surface.ROTATION_180)&&height>width||(rotation==Surface.ROTATION_90||rotation==Surface.ROTATION_270)&&width>height){switch(rotation){caseSurface.ROTATION_0:orientation=ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;break;caseSurface.ROTATION_90:orientation=ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;break;caseSurface.ROTATION_180:orientation=ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT;break;caseSurface.ROTATION_270:orientation=ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE;break;default:orientation=ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;break;}}//ifthedevice'snaturalorientationislandscapeorifthedevice//issquare:else{switch(rotation){caseSurface.ROTATION_0:orientation=ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;break;caseSurface.ROTATION_90:orientation=ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;break;caseSurface.ROTATION_180:orientation=ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE;break;caseSurface.ROTATION_270:orientation=ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT;break;default:orientation=ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;break;}}returnorientation;}/***滑动改变声音大小**@parampercent*/privatevoidonVolumeSlide(floatpercent){if(volume==-1){volume=audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);if(volume<0)volume=0;}intindex=(int)(percent*mMaxVolume)+volume;if(index>mMaxVolume){index=mMaxVolume;}elseif(index<0){index=0;}//变更声音audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,index,0);//变更进度条inti=(int)(index*1.0/mMaxVolume*100);Strings=i+"%";if(i==0){s="off";}DebugLog.d("","onVolumeSlide:"+s);}privatevoidonProgressSlide(floatpercent){longposition=videoView.getCurrentPosition();longduration=videoView.getDuration();longdeltaMax=Math.min(100*1000,duration-position);longdelta=(long)(deltaMax*percent);newPosition=delta+position;if(newPosition>duration){newPosition=duration;}elseif(newPosition<=0){newPosition=0;delta=-position;}intshowDelta=(int)delta/1000;if(showDelta!=0){Stringtext=showDelta>0?("+"+showDelta):""+showDelta;DebugLog.d("","onProgressSlide:"+text);}}/***滑动改变亮度**@parampercent*/privatevoidonBrightnessSlide(floatpercent){if(brightness<0){brightness=activity.getWindow().getAttributes().screenBrightness;if(brightness<=0.00f){brightness=0.50f;}elseif(brightness<0.01f){brightness=0.01f;}}DebugLog.d("","brightness:"+brightness+",percent:"+percent);WindowManager.LayoutParamslpa=activity.getWindow().getAttributes();lpa.screenBrightness=brightness+percent;if(lpa.screenBrightness>1.0f){lpa.screenBrightness=1.0f;}elseif(lpa.screenBrightness<0.01f){lpa.screenBrightness=0.01f;}activity.getWindow().setAttributes(lpa);}publicvoidsetFullScreenOnly(booleanfullScreenOnly){this.fullScreenOnly=fullScreenOnly;tryFullScreen(fullScreenOnly);if(fullScreenOnly){activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);}else{activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);}}privatevoidtryFullScreen(booleanfullScreen){if(activityinstanceofAppCompatActivity){ActionBarsupportActionBar=((AppCompatActivity)activity).getSupportActionBar();if(supportActionBar!=null){if(fullScreen){supportActionBar.hide();}else{supportActionBar.show();}}}setFullScreen(fullScreen);}privatevoidsetFullScreen(booleanfullScreen){if(activity!=null){WindowManager.LayoutParamsattrs=activity.getWindow().getAttributes();if(fullScreen){attrs.flags|=WindowManager.LayoutParams.FLAG_FULLSCREEN;activity.getWindow().setAttributes(attrs);activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);}else{attrs.flags&=(~WindowManager.LayoutParams.FLAG_FULLSCREEN);activity.getWindow().setAttributes(attrs);activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);}}}/***<pre>*fitParent:可能会剪裁,保持原视频的大小，显示在中心,当原视频的大小超过view的大小超过部分裁剪处理*fillParent:可能会剪裁,等比例放大视频，直到填满View为止,超过View的部分作裁剪处理*wrapContent:将视频的内容完整居中显示，如果视频大于view,则按比例缩视频直到完全显示在view中*fitXY:不剪裁,非等比例拉伸画面填满整个View*16:9:不剪裁,非等比例拉伸画面到16:9,并完全显示在View中*4:3:不剪裁,非等比例拉伸画面到4:3,并完全显示在View中*</pre>*@paramscaleType*/publicvoidsetScaleType(StringscaleType){if(SCALETYPE_FITPARENT.equals(scaleType)){videoView.setAspectRatio(IRenderView.AR_ASPECT_FIT_PARENT);}elseif(SCALETYPE_FILLPARENT.equals(scaleType)){videoView.setAspectRatio(IRenderView.AR_ASPECT_FILL_PARENT);}elseif(SCALETYPE_WRAPCONTENT.equals(scaleType)){videoView.setAspectRatio(IRenderView.AR_ASPECT_WRAP_CONTENT);}elseif(SCALETYPE_FITXY.equals(scaleType)){videoView.setAspectRatio(IRenderView.AR_MATCH_PARENT);}elseif(SCALETYPE_16_9.equals(scaleType)){videoView.setAspectRatio(IRenderView.AR_16_9_FIT_PARENT);}elseif(SCALETYPE_4_3.equals(scaleType)){videoView.setAspectRatio(IRenderView.AR_4_3_FIT_PARENT);}}publicvoidstart(){videoView.start();}publicvoidpause(){videoView.pause();}publicbooleanonBackPressed(){if(!fullScreenOnly&&getScreenOrientation()==ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE){activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);returntrue;}returnfalse;}classQuery{privatefinalActivityactivity;privateViewview;publicQuery(Activityactivity){this.activity=activity;}publicQueryid(intid){view=activity.findViewById(id);returnthis;}publicQueryimage(intresId){if(viewinstanceofImageView){((ImageView)view).setImageResource(resId);}returnthis;}publicQueryvisible(){if(view!=null){view.setVisibility(View.VISIBLE);}returnthis;}publicQuerygone(){if(view!=null){view.setVisibility(View.GONE);}returnthis;}publicQueryinvisible(){if(view!=null){view.setVisibility(View.INVISIBLE);}returnthis;}publicQueryclicked(View.OnClickListenerhandler){if(view!=null){view.setOnClickListener(handler);}returnthis;}publicQuerytext(CharSequencetext){if(view!=null&&viewinstanceofTextView){((TextView)view).setText(text);}returnthis;}publicQueryvisibility(intvisible){if(view!=null){view.setVisibility(visible);}returnthis;}privatevoidsize(booleanwidth,intn,booleandip){if(view!=null){ViewGroup.LayoutParamslp=view.getLayoutParams();if(n>0&&dip){n=dip2pixel(activity,n);}if(width){lp.width=n;}else{lp.height=n;}view.setLayoutParams(lp);}}publicvoidheight(intheight,booleandip){size(false,height,dip);}publicintdip2pixel(Contextcontext,floatn){intvalue=(int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,n,context.getResources().getDisplayMetrics());returnvalue;}publicfloatpixel2dip(Contextcontext,floatn){Resourcesresources=context.getResources();DisplayMetricsmetrics=resources.getDisplayMetrics();floatdp=n/(metrics.densityDpi/160f);returndp;}}publicclassPlayerGestureListenerextendsGestureDetector.SimpleOnGestureListener{privatebooleanfirstTouch;privatebooleanvolumeControl;privatebooleantoSeek;/***双击*/@OverridepublicbooleanonDoubleTap(MotionEvente){videoView.toggleAspectRatio();returntrue;}@OverridepublicbooleanonDown(MotionEvente){firstTouch=true;returnsuper.onDown(e);}/***滑动*/@OverridepublicbooleanonScroll(MotionEvente1,MotionEvente2,floatdistanceX,floatdistanceY){floatmOldX=e1.getX(),mOldY=e1.getY();floatdeltaY=mOldY-e2.getY();floatdeltaX=mOldX-e2.getX();if(firstTouch){toSeek=Math.abs(distanceX)>=Math.abs(distanceY);volumeControl=mOldX>screenWidthPixels*0.5f;firstTouch=false;}if(toSeek){if(!isLive){onProgressSlide(-deltaX/videoView.getWidth());}}else{floatpercent=deltaY/videoView.getHeight();if(volumeControl){onVolumeSlide(percent);}else{onBrightnessSlide(percent);}}returnsuper.onScroll(e1,e2,distanceX,distanceY);}@OverridepublicbooleanonSingleTapUp(MotionEvente){returntrue;}}/***isplayersupportthisdevice*@return*/publicbooleanisPlayerSupport(){returnplayerSupport;}/***是否正在播放*@return*/publicbooleanisPlaying(){returnvideoView!=null?videoView.isPlaying():false;}publicvoidstop(){videoView.stopPlayback();}publicintgetCurrentPosition(){returnvideoView.getCurrentPosition();}/***getvideoduration*@return*/publicintgetDuration(){returnvideoView.getDuration();}publicPlayerManagerplayInFullScreen(booleanfullScreen){if(fullScreen){activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);}returnthis;}publicPlayerManageronError(OnErrorListeneronErrorListener){this.onErrorListener=onErrorListener;returnthis;}publicPlayerManageronComplete(OnCompleteListeneronCompleteListener){this.onCompleteListener=onCompleteListener;returnthis;}publicPlayerManageronInfo(OnInfoListeneronInfoListener){this.onInfoListener=onInfoListener;returnthis;}publicPlayerManageronControlPanelVisibilityChange(OnControlPanelVisibilityChangeListenerlistener){this.onControlPanelVisibilityChangeListener=listener;returnthis;}/***setislive(can'tseekforward)*@paramisLive*@return*/publicPlayerManagerlive(booleanisLive){this.isLive=isLive;returnthis;}publicPlayerManagertoggleAspectRatio(){if(videoView!=null){videoView.toggleAspectRatio();}returnthis;}publicinterfacePlayerStateListener{voidonComplete();voidonError();voidonLoading();voidonPlay();}publicinterfaceOnErrorListener{voidonError(intwhat,intextra);}publicinterfaceOnCompleteListener{voidonComplete();}publicinterfaceOnControlPanelVisibilityChangeListener{voidchange(booleanisShowing);}publicinterfaceOnInfoListener{voidonInfo(intwhat,intextra);}}

第七步：初始化

privatevoidinitPlayer(){player=newPlayerManager(this);player.setFullScreenOnly(true);player.setScaleType(PlayerManager.SCALETYPE_FILLPARENT);player.playInFullScreen(true);player.setPlayerStateListener(this);player.play(url);}@OverridepublicbooleanonTouchEvent(MotionEventevent){if(player.gestureDetector.onTouchEvent(event))returntrue;returnsuper.onTouchEvent(event);}@OverridepublicvoidonComplete(){Log.i("+++++","onComplete:");}@OverridepublicvoidonError(){Log.i("+++++","onError:");}@OverridepublicvoidonLoading(){Log.i("+++++","onLoading:");}@OverridepublicvoidonPlay(){Log.i("+++++","onPlay:");}@OverridepublicvoidonClick(Viewv){switch(v.getId()){caseR.id.btn:Stringurl2=getCacheDir()+"haha.mp4";presenter.down(String.valueOf(0),url,url2);break;default:break;}}@OverridepublicvoidgetData(ResponseBodyresponseBody){}