TZImagePreviewController
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banchichen
对TZImagePickerController库的增强，支持用UIImage、NSURL预览照片和用NSURL预览视频。
TZImagePickerController *imagePickerVc = [[TZImagePickerController alloc] initWithMaxImagesCount:1 columnNumber:4 delegate:weakSelf pushPhotoPickerVc:NO]; 设置的单选 TZImagePreviewController *previewVc = [[TZImagePreviewController alloc] initWithPhotos:videos currentIndex:idx tzImagePickerVc:imagePickerVc]; 但传入数组用于展示后，选中的逻辑变为多选了
问题描述：第一次预览网络图片时会出现，后面则不会 开发环境：Xcode13.1，iOS15.1  
iOS13会报'Client error attempting to change layout margins of a private view'错误
If the selected photo is duplicated, the Index on the navigation bar is not initialized correctly.
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对TZImagePickerController库的增强，支持用UIImage、NSURL预览照片和用NSURL预览视频。