PureCamera

#import <PureCamera.h>  

#import "PureCamera.h"

Privacy - Camera Usage Description      Use camera

PureCamera *homec=[[PureCamera alloc]init];
__weak typeof(self)myself=self;
homec.fininshcapture=^(UIImage *ss){
    if (ss) {
        NSLog(@"Photo exists");
        //Here you can get the cropped photo
        myself.ViewImageview.image=ss;
    }
} ;
[self presentViewController:homec animated:NO completion:^{}];}

First import #import "TOCropViewController.h"
Adhere to @interface ViewController()<TOCropViewControllerDelegate>
Pass in an image and you can present the image cropping page

TOCropViewController *cropController = [[TOCropViewController alloc] initWithImage:self.cropImageview.image];
cropController.delegate = self;
[self presentViewController:cropController animated:YES completion:nil];

- (void)cropViewController:(TOCropViewController *)cropViewController didCropToImage:(UIImage *)image withRect:(CGRect)cropRect angle:(NSInteger)angle
{
   self.cropImageview.image=image;
   self.navigationItem.rightBarButtonItem.enabled = YES;
   //The following defines an animation effect, which is that when the image cropping page disappears, it will use the frame of the view you defined as the boundary after the disappearance.
   CGRect viewFrame = [self.view convertRect:self.cropImageview.frame toView:self.navigationController.view];
   [cropViewController dismissAnimatedFromParentViewController:self withCroppedImage:image toFrame:viewFrame completion:^{
   }];
}