how to change CropRect when it is loaded? - ios

Question

I found a useful library which works with cropping image in this link. I want to use it with only one cropRect which is ratio = 3.0f / 4.0f; instead of choosing them. I added below code in viewDidApper method of PECropViewController:
CGFloat ratio = 3.0f / 4.0f;
CGRect cropRect = self.cropView.cropRect;
CGFloat width = CGRectGetWidth(cropRect);
cropRect.size = CGSizeMake(width, width * ratio);
self.cropView.cropRect = cropRect;
But it is not working. There is (void)constrain:(id)sender method which works when I press Edit button. If I write above code in this method it works well. Here is the code:
(void)constrain:(id)sender
{
CGFloat ratio = 3.0f / 4.0f;
CGRect cropRect = self.cropView.cropRect;
CGFloat width = CGRectGetWidth(cropRect);
cropRect.size = CGSizeMake(width, width * ratio);
self.cropView.cropRect = cropRect;
return;
{
The problem is I can't change cropRect's ratio when croppingView appears.

Answer 1

if somebody is looking for solution for this question, i found it. I have just changed cropAspectRatio in PECropView:
- (void)setupImageView
{
CGRect cropRect = AVMakeRectWithAspectRatioInsideRect(self.image.size, self.insetRect);
self.scrollView.frame = cropRect;
self.scrollView.contentSize = cropRect.size;
self.zoomingView = [[UIView alloc] initWithFrame:self.scrollView.bounds];
self.zoomingView.backgroundColor = [UIColor clearColor];
[self.scrollView addSubview:self.zoomingView];
self.imageView = [[UIImageView alloc] initWithFrame:self.zoomingView.bounds];
self.imageView.backgroundColor = [UIColor clearColor];
self.imageView.contentMode = UIViewContentModeScaleAspectFit;
self.imageView.image = self.image;
[self.zoomingView addSubview:self.imageView];
//i added this line code
self.cropAspectRatio = 4 / 3.0;
}