Constant crop aspect ratio using PEPhotoCropEditor library in iOS - ios

Question

I'm using PEPhotoCropEditor library in one of my iOS project. I able to having constant aspect ratio (1:1) with following code.
- (void)openEditor {
PECropViewController *controller = [[PECropViewController alloc] init];
controller.delegate = self;
controller.image = self.imageView.image;
UIImage *image = self.imageView.image;
CGFloat width = image.size.width;
CGFloat height = image.size.height;
CGFloat length = MIN(width, height);
CGRectMake(CGFloat x, CGFloat y, CGFloat width, CGFloat height)
controller.imageCropRect = CGRectMake((width - length) / 2,
(height - length) / 2,
length,
length);
// Restricted to a square aspect ratio
controller.keepingCropAspectRatio = YES;
controller.cropAspectRatio = 1.0;
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:controller];
[self presentViewController:navigationController animated:YES completion:NULL];
}
But then I needed to have aspect ratio (height:width) of (1:3) instead of (1:1).
controller.cropAspectRatio = 1.0f / 3.0f;
I tried above and nothing happened. Still having same aspect ratio. Then I change below code too.
controller.imageCropRect = CGRectMake((width - length) / 2,
(height - length) / 2,
length * 3,
length);
Again nothing happened. After commenting above I hard coded the value like below.
controller.imageCropRect = CGRectMake(0.0f, 0.0f, 300.0f, 100.0f);
Then the cropping area displayed correctly but when resizing that aria will lead to destroy the crop aspect ratio (1:3)
Any idea how to remain aspect ratio (1:3) till all editing process complete?

Answer 1

Set this in ViewdidAppear in PECropViewController.m
self.cropAspectRatio = 1.0f;
self.keepingCropAspectRatio = YES;
And pass value to function setKeepingAspectRatio in PECropRectView.m
- (void)setKeepingAspectRatio:(BOOL)keepingAspectRatio
{
_keepingAspectRatio = keepingAspectRatio;
if (self.keepingAspectRatio) {
CGFloat width = CGRectGetWidth(self.bounds);
CGFloat height = CGRectGetHeight(self.bounds);
self.fixedAspectRatio = your_fixed_aspect_ratio_value;//fminf(width / height, height / width);
}
}
you will get expected result.