支持多选、单选、预览图片、单选图片后裁剪、简单裁剪视频。采用配置model的思路，多页面对相册的使用互不影响。Support multi-selection, single selection, preview pictures, single-choice pictures after clipping, simple clipping video. Using the idea of configuring model, multi-page has no effect on the use of albums.
