无法将VERY BIG（HEAVY）UIImage传递给另一个UIViewController

Question

我有将大小约为300 MB的图片传递给另一个UIViewController的问题。我可以传递任何其他图像，但它们的大小不是那么大。

首先，在第二个UIImagePickerController中选择我显示预览窗口的图像后，我在第一个UIViewController中调用UIViewController。试图使用UIImagePickerControllerReferenceURL密钥，但也无效。

我的代码如下：

1）第二个UIViewController传递图像

#import <UIKit/UIKit.h>

@interface SecondViewController : UIViewController
@property (nonatomic, strong) UIImage *selectedImage;
@end

2）在我的第一个UIViewController

中

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

    selectedImage = [info objectForKey:UIImagePickerControllerOriginalImage];

    SecondViewController *vc = [SecondViewController new];
    vc.selectedImage = selectedImage;

    [imagePickerController pushViewController:vc animated:YES];

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(finishedToPickImage) name:@"finishedToPickImage" object:nil];
}

可以在不压缩原始图像的情况下进行此操作吗？

Answer 1

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

    selectedImage = [info objectForKey:UIImagePickerControllerEditedImage];

    SecondViewController *vc = [SecondViewController new];
    vc.selectedImage = selectedImage;

    [imagePickerController pushViewController:vc animated:YES];

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(finishedToPickImage) name:@"finishedToPickImage" object:nil];
}

尝试使用UIImagePickerControllerEditedImage这个代码，这会使图像尺寸变小。