获取SD卡视频文件缩略图

获取SD卡视频文件缩略图 Java代码 , privateBitmapcreateVideoThumbnail(StringfilePath){ , Bitmapbitmap=null; , MediaMetadataRetrieverretriever=newMediaMetadataRetriever(); , try{ , retriever.setMode(MediaMetadataRetriever.MODE_CAPTURE_FRAME_ONLY); , retriever.setDataSource(filePath); , bitmap=retriever.captureFrame(); , }catch(IllegalArgumentExceptionex){ ？ //Assumethisisacorruptvideofile ,, }catch(RuntimeExceptionex){ ,, //Assumethisisacorruptvideofile. ,, }finally{ ,, try{ ,, retriever.release(); ,, }catch(RuntimeExceptionex){ ,, //Ignorefailureswhilecleaningup. ,, } ,, } ,？ returnbitmap; ,, } ,, ,, privatevoidgetVideoFile(finalListlist) ,, { ,, Bitmapbitmap=null; ,, ,, ContentResolvermContentResolver=this.getContentResolver(); ,, Cursorcursor=mContentResolver.query(MediaStore.Video.Media.EXTERNAL_CONTE NT_URI,null, ,, null,null,MediaStore.Video.DEFAULT_SORT_ORDER); ,？ ,, ,, ,, if(cursor.moveToFirst()) ,, { ,, do{ ,, //ID:MediaStore.Audio.Media._ID ,, intid=cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.Video.Media._ID)); ,, ,, //名称:MediaStore.Audio.Media.TITLE ,？ Stringtilte=cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.TI TLE)); ,, ,, //专辑名:MediaStore.Audio.Media.ALBUM ,, Stringalbum=cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.ALBUM)); ,, ,, ,, //歌手名:MediaStore.Audio.Media.ARTIST ,, Stringartist=cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.ARTIST)); ,, ,, //路径:MediaStore.Audio.Media.DATA ,？ Stringurl=cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA)); ,, ,, //总播放时长:MediaStore.Audio.Media.DURATION ,, intduration=cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DURATION)); ,, ,, //大小:MediaStore.Audio.Media.SIZE ,, intsize=(int)cursor.getLong(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.SIZE)); ,, ,, //拍摄时间 ,, intdateTaken=cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATE_TAKEN)); ,？ Stringdatetime=DateFormat.format("yyyy-MM-ddkk:mm:ss",dateTaken).toString(); ,, ,, bitmap=createVideoThumbnail(url); ,, ,, } MediaMetadataRetriever.Java 应放在工程的: Android.media 下面