iphone - 如何识别从 uiimagePicketController 获取的图像是屏幕截图还是相机图像？

Question

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)selectedImage editingInfo:(NSDictionary *)editInfo {
NSLog(@"done");

headingLabel.hidden= NO;
//[self playMovie];
[picker dismissViewControllerAnimated:YES completion:nil];
[self setupCroppingTool:selectedImage];

}

这是代码，所以我如何识别 selectedImage 是屏幕截图或相机图像

Answer 1

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)selectedImage editingInfo:(NSDictionary *)editInfo

此方法image从照片库中挑选。您不能将 ascreenshot image与 a进行比较，normal image因为两者都是UIImage。

Answer 2

查看图像元数据 - 日期、关键字、地理位置……并进行比较。

Answer 3

可能有帮助..

我认为对UIImagePickerController你有帮助的源属性。

例子。

UIImagePickerController *abc = [[UIImagePickerController alloc] init];;
abc.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

您可以使用其中之一..

UIImagePickerControllerSourceTypePhotoLibrary
UIImagePickerControllerSourceTypeCamera
UIImagePickerControllerSourceTypeSavedPhotosAlbum