CODEWITHSUNDEEP
uiimageviewuitextviewuibezierpath
Sadiq Jaffer
Sadiq Jaffer

Reputation: 500

UIBeizierPath around UIImageView contained within a UITextView

Within a collection view cell I have a textview which is created in

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath

I'm creating a bezier path for text exclusion as below

CGRect exclusionRect=CGRectMake(0,0, cell.coverImage.frame.size.width, cell.coverImage.frame.size.height);
UIBezierPath *exclusionPath=[UIBezierPath bezierPathWithRect:exclusionRect];
cell.issueInfo.textContainer.exclusionPaths=@[exclusionPath];

However, when the textview scrolls the bezier path stays fixed within the textview and therefore my text becomes masked by the image.

How do get the bezier path to not move when the text view scrolls?

Upvotes: 1

Views: 516

Answers (1)

Sadiq Jaffer
Sadiq Jaffer

Reputation: 500

I resolved this by having my custom UICollectionViewCell subclass adopt the UITextViewDelegate protocol and setting the cell as the delegate in

-(void)awakeFromNib

As the UITextViewDelegate protocol inherits from the UIScrollView protocol I implemented 

-(void)scrollViewDidScroll:(UIScrollView *)scrollView

Inside this method I calculate and apply the bezierpath as below

self.exclusionPath=[UIBezierPath bezierPathWithRect:[self.textView convertRect:self.imageView.bounds fromView:self.imageView]];
self.textView.textContainer.exclusionPaths=@[self.exclusionPath];

Hope this helps someone!

Upvotes: 3

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