将应用raw里的文件copy到sd卡实现

    把APK的资源文件copy到SD卡下的实现。 /* * 将raw里的文件copy到sd卡下 * */ public void copyResToSdcard(String name){//name为sd卡下制定的路径 Field[] raw = R.raw.class.getFields(); for (Field r : raw) { try { // System.out.println("R.raw." + r.getName()); int id=getResources().getIdentifier(r.getName(), "raw", getPackageName()); if(!r.getName().equals("allapps")){ String path=name+"/"+r.getName()+".png"; BufferedOutputStream bufEcrivain = new BufferedOutputStream((new FileOutputStream(new File(path)))); BufferedInputStream VideoReader = new BufferedInputStream(getResources().openRawResource(id)); byte[] buff = new byte[20*1024]; int len; while( (len = VideoReader.read(buff)) > 0 ){ bufEcrivain.write(buff,0,len); } bufEcrivain.flush(); bufEcrivain.close(); VideoReader.close(); } } catch (Exception e) { e.printStackTrace(); } } }