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    <p><strong>--Edit--</strong></p> <p>See <a href="https://stackoverflow.com/questions/50467/how-do-i-size-a-uitextview-to-its-content">How do I size a UITextView to its content?</a></p> <p>Once the text has changed, you can go back to your original solution of using the contentSize. I adjusted this code to use a <code>maxHeight</code></p> <pre><code>- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text { return YES; } - (void)textViewDidChange:(UITextView *)textView { CGFloat maxHeight = 312.0f; CGFloat fixedWidth = textView.frame.size.width; CGSize newSize = [textView sizeThatFits:CGSizeMake(fixedWidth, MAXFLOAT)]; CGRect newFrame = textView.frame; newFrame.size = CGSizeMake(fmaxf(newSize.width, fixedWidth), fminf(newSize.height, maxHeight)); textView.frame = newFrame; } </code></pre> <p><strong>--Original Answer--</strong></p> <p>Have you tried waiting until the text has changed and then use the NSString methods to get the size? I haven't tested this but it should get you started in the right direction.</p> <pre><code>- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text { return YES; } - (void)textViewDidChange:(UITextView *)textView{ CGFloat myMaxSize = 568.0f; // Set to max height you would ever want your textView to expand to CGRect frameRect = textView.frame; CGRect rect = [textView.text boundingRectWithSize:CGSizeMake(frameRect.size.width, CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName: textView.font} context:nil]; CGSize size = rect.size; if (size.height &gt; myMaxSize) { size.height = myMaxSize; } frameRect.size = size; [textView setFrame:frameRect]; } </code></pre>
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    1. COI have updated my post, please refer to it.
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    2. COI think you may have a bug in your _FRAME_SET_H function. Are you trying to expand the textview upwards (likes Messages app)? My code doesn't do that but could be adapted to do it.
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    3. COWow, I should have seen this sooner. Once you've let the text change, you can use the content size like you originally wanted to. See http://stackoverflow.com/questions/50467/how-do-i-size-a-uitextview-to-its-content The only thing you'd need to account for is a max height and scrolling the view when you hit the max height and enter a newline character (return) but haven't entered new text.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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