Android Downloader 1:init downloader Application--onCreate()--> Downloader.getInstance().Init(this); 2: download DownLoadItem downloaditem = new DownLoadItem(); downloaditem.setDownLoadUrl(video.getUrl()); downloaditem.setGuid(MD5Util.mD5(video.getUrl())); downloaditem.setFileName(videoName); Downloader.getInstance().getDownloadManager().downLoad(downloaditem); 3:pause Downloader.getInstance().getDownloadManager().pause(BaseModel model) 4:resume Downloader.getInstance().getDownloadManager().resume(DownloadRequest request) 5:delete Downloader.getInstance().getDownloadManager().delete(DownloadRequest request)