@Override
  public void onItemClick(AdapterView<?> parent, View v, int position, long id) {

    mImageResizer.setPauseWork(true);

    if (position == 0) {

      Intent intent = new Intent();
      intent.setClass(getActivity(), RecorderVideoActivity.class);
      startActivityForResult(intent, 100);
    } else {
      //			VideoEntity vEntty=(VideoEntity) parent.getItemAtPosition(position);
      VideoEntity vEntty = mList.get(position - 1);

      // 限制大小不能超过10M
      if (vEntty.size > 1024 * 1024 * 10) {
        Toast.makeText(getActivity(), "暂不支持大于10M的视频!", Toast.LENGTH_SHORT).show();
        return;
      }
      Intent intent =
          getActivity()
              .getIntent()
              .putExtra("path", vEntty.filePath)
              .putExtra("dur", vEntty.duration);
      getActivity().setResult(Activity.RESULT_OK, intent);
      getActivity().finish();
    }
  }
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mImageThumbSize = getResources().getDimensionPixelSize(R.dimen.image_thumbnail_size);
    mImageThumbSpacing = getResources().getDimensionPixelSize(R.dimen.image_thumbnail_spacing);
    mList = new ArrayList<VideoEntity>();
    getVideoFile();
    mAdapter = new ImageAdapter(getActivity());

    ImageCache.ImageCacheParams cacheParams = new ImageCache.ImageCacheParams();

    cacheParams.setMemCacheSizePercent(0.25f); // Set memory cache to 25% of
    // app memory

    // The ImageFetcher takes care of loading images into our ImageView
    // children asynchronously
    mImageResizer = new ImageResizer(getActivity(), mImageThumbSize);
    mImageResizer.setLoadingImage(R.drawable.empty_photo);
    mImageResizer.addImageCache(getActivity().getSupportFragmentManager(), cacheParams);
  }
 @Override
 public void onDestroy() {
   super.onDestroy();
   mImageResizer.closeCache();
   mImageResizer.clearCache();
 }
 @Override
 public void onResume() {
   super.onResume();
   mImageResizer.setExitTasksEarly(false);
   mAdapter.notifyDataSetChanged();
 }