遍历sd卡上所有图片

  public void loadNewBitmapFromSDcard(){
  //sdcard路径
  String SDPath = Environment.getExternalStorageDirectory()+"/";
  
  getFiles(SDPath);
 }
 
 
 /**
     *
     * @param url
     * 查找起始根目录
     *
     */
    private void getFiles(String url) {
        try {
        File mainFile = new File(url);        
        File[] files = mainFile.listFiles();
       
        for(int i=0;i<files.length;i++) {
                if(files[i].isDirectory()) {
                  getFiles(files[i].getAbsolutePath());
                }else {
 //                       AppConstant.sdcasd_size += files[i].length();                       
                        if(files[i].getAbsolutePath().endsWith(".jpg") ||
                          files[i].getAbsolutePath().endsWith(".bmp") ||
                          files[i].getAbsolutePath().endsWith(".bmp")) {
                                //保存到list中
//                                this.setAudio(files[i]);
                         iData.add(files[i].toString());
                         System.out.println(files[i]);
                        }               
                }
         }
     }catch(Exception e) {
             Log.d("getfile", "查找成功!");
     }
   
    }

 

可以将.jpg改为你想要的任何文件