android 删除、重名命文件，刷新 Android 的 MediaStore，让你文件立即出现

//旧的文件
File file = new File(photoBean.getFilePath());

String newname = inputStr+photoBean.getFileType();
File f2 = new File(file.getParent()+File.separator+newname);
boolean b = file.renameTo(f2);
if(f2.exists()){
   Log.e("新的文件存在,重命名成功",f2.getPath());
}
//通知MediaStore刷新删除的文件
notifyLocalMedia(file.getPath());
//通知MediaStore刷新重命名的文件
updateGallery(f2.getPath());

for(int i=0;i<delList.size();i++){
    System.gc();
    File file = new File(delList.get(i).getFilePath());
    boolean delete = file.delete();
    if(!file.exists()){
        Log.e("TGA","删除的文件已经不存在了");
    }
    notifyLocalMedia(file.getPath());
    updateGallery(file.getPath());
}

//通知MediaStore刷新删除的文件
private void notifyLocalMedia(String imgPath) {
    Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
    intent.setData(Uri.fromFile(new File(imgPath)));
    mContext.sendBroadcast(intent);
}
// 通知MediaStore刷新新的文件
private void updateGallery(String filename)//filename是我们的文件全名，包括后缀哦
{
    MediaScannerConnection.scanFile(mContext,
          new String[] { filename }, null,
          new MediaScannerConnection.OnScanCompletedListener() {
              public void onScanCompleted(String path, Uri uri) {
                  Log.e("TGA","刷新成功，文件路径：" + path);
                  handler.removeCallbacks(runnable);
                  handler.postDelayed(runnable,600);
              }
          });
}