VPImageCropper

##Usage It's incredibly easy to use this kit. Before present the cropper view controller, you should implement the protocol VPImageCropperDelegate:

// callback when cropping finished
- (void)imageCropper:(VPImageCropperViewController *)cropperViewController didFinished:(UIImage *)editedImage;

// callback when cropping cancelled
- (void)imageCropperDidCancel:(VPImageCropperViewController *)cropperViewController;

Now it's time to present the image cropper view controller and do some cropping.

// present the cropper view controller
VPImageCropperViewController *imgCropperVC = [[VPImageCropperViewController alloc] initWithImage:portraitImg cropFrame:CGRectMake(0, 100.0f, self.view.frame.size.width, self.view.frame.size.width) limitScaleRatio:3.0];
imgCropperVC.delegate = self;
[self presentViewController:imgCropperVC animated:YES completion:^{
        // TO DO
}];

##Summary As negligible as it is, I am glad this work could be used in some of the products in our company which is the best part. Anyway, if you are interested enough to have a test. Please refer to the VPImageCropperDemo Project and enjoy the beauty of coding.