相册选择照片

        switch (requestCode) {
        case REQUEST_FROM_ALBUM:
            Uri uri = data.getData();
            String path = Utils.getImageAbsolutePath(FeedBackActivity.this, uri);
            Logger.d(Const.Tag_Log, "path:" + path);
            if (path != null) {
                File file = new File(path);
                if (file != null) {
                    Logger.d(Const.Tag_Log, "fileLen:" + file.length());
                }
            }

            Bitmap photo = null;
            try {
                photo = MediaStore.Images.Media.getBitmap(getContentResolver(), uri);
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (photo != null) {
                // TODO 缩放
                // //为防止原始图片过大导致内存溢出，这里先缩小原图显示，然后释放原始Bitmap占用的内存
                // Bitmap smallBitmap = ImageTools.zoomBitmap(photo,
                // photo.getWidth() / SCALE, photo.getHeight() / SCALE);
                // //释放原始图片占用的内存，防止out of memory异常发生
                // photo.recycle();

                mIv.setImageBitmap(photo);
            }
            break;

        default:
            break;
        }