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POAuto-expanding a UIView and CGPath to fit Core Text
 

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  1. POAuto-expanding a UIView and CGPath to fit Core Text
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    <p>I've been searching all over stack to an answer for this, although there is a lot on the topic nothing quite seems to answer the question, at least not to me.</p> <p>I have a custom UIView of fixed size in storyboard (in a prototype cell). I subclassed UIView for it and over-wrote the drawRect Method. It basically puts together a formatted string, then I draw it like so:</p> <pre><code>// now for the actual drawing CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetShadowWithColor(context, CGSizeMake(0, 1), 0, [UIColor whiteColor].CGColor); CGMutablePathRef path = CGPathCreateMutable(); //1 CGPathAddRect(path, NULL, self.bounds ); // flip the coordinate system CGContextSetTextMatrix(context, CGAffineTransformIdentity); CGContextTranslateCTM(context, 0, self.bounds.size.height); CGContextScaleCTM(context, 1.0, -1.0); CTFramesetterRef framesetter = CTFramesetterCreateWithAttributedString((__bridge CFAttributedStringRef)stringToDraw); //3 CTFrameRef frame = CTFramesetterCreateFrame(framesetter, CFRangeMake(0, 0), path, NULL); CTFrameDraw(frame, context); //4 </code></pre> <p>That's fine and works and if I make the default size big enough, it'll handle multiple lines of text.</p> <p>The CGPath uses all of the UIView, that's fine/desired.</p> <p>I want to keep the CGPath's width fixed, but I want the height to expand to accomodate an essentially unlimited amount of text, right now it just gets cut off (due to the path/view not being big enough to encompass it)</p> <p>I've tried playing with CTFramesetterSuggestFrameSizeWithConstraints to no avail. Can someone please help me develop some code that will achieve what I need to do?</p>
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