ios - 如何从 UIImagePickerController 拍摄的照片和视频中获取日期？

Question

如果您呈现一个源类型为 .Camera (Swift) 的 UIImagePickerController，您如何获取拍摄日期(或开始录制，如UIImagePickerControllerDelegate 方法中的图像或视频的视频)？

Answer 1

您必须访问 info 并提取元数据并从中提取日期:

- (void)imagePickerController:(nonnull UIImagePickerController *)picker didFinishPickingMediaWithInfo:(nonnull NSDictionary<NSString *,id> *)info {
    NSString* meta = [[[info objectForKey:UIImagePickerControllerMediaMetadata] objectForKey:@"{TIFF}"] objectForKey:@"DateTime"];
    NSDateFormatter *form = [[NSDateFormatter alloc] init];
    form.dateFormat = @"yyyy:MM:dd HH:mm:ss";
    NSDate* date = [form dateFromString:meta];

    [picker dismissViewControllerAnimated:true completion:^{}];
}