ios - 如何确定使用 UIImagePickerController 捕获的图像是 JPEG 还是 HEIF？

Question

我已将 UIImagePickerController 的 imageExportPreset 属性设置为使用当前的。如何确定捕获的图像是 HEIF 还是 JPEG？

Answer 1

您是否尝试过类似以下的操作？

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 
{
    NSURL *assetURL = info[UIImagePickerControllerReferenceURL];

    NSString *extension = [assetURL pathExtension];
    CFStringRef imageUTI = (UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension,(__bridge CFStringRef)extension , NULL));

    if (UTTypeConformsTo(imageUTI, kUTTypeJPEG))
    {
        // JPEG
    }
    else
    {
        NSLog(@"Unhandled Image UTI: %@", imageUTI);
    }
}