CODEWITHSUNDEEP
iphoneobjective-cuiimagecrop
Hanon
Hanon

Reputation: 3927

Crop uiimage as screen size

My application have an function that allow user to move and scale the image just like setting allowsEditing = YES with UIImagePickerController.

My approach is having a scrollview which allow user to zoom with level 1-4 There is only a image view on the scrollview.

At the end, I want to crop the image as the screen size. How can I do it?

Upvotes: 1

Views: 1182

Answers (1)

Simon Lee
Simon Lee

Reputation: 22334

The trick is to capture the layer of the view containing the scaled / rotated image. In this case you need to capture the scrollview layer NOT the image itself.

I have a UIImage capture category for this...check out my article and download the source code.

UPDATE: to crop part of the image as per the comment below...

First capture the whole view then crop the image to the specified rect using the following method in the UIImage+Resize category (also in the article...)

- (UIImage *)croppedImage:(CGRect)bounds;

Upvotes: 2

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