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POUITextView cursor below frame when changing frame
 

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    <p>I have a <code>UIViewCOntroller</code>that contains a <code>UITextView</code>. When the keyboard appears I resize it like this:</p> <pre><code>#pragma mark - Responding to keyboard events - (void)keyboardDidShow:(NSNotification *)notification { NSDictionary* info = [notification userInfo]; CGRect keyboardSize = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue]; CGRect newTextViewFrame = self.textView.frame; newTextViewFrame.size.height -= keyboardSize.size.height + 70; self.textView.frame = newTextViewFrame; self.textView.backgroundColor = [UIColor yellowColor]; } - (void)keyboardWillHide:(NSNotification *)notification { NSDictionary* info = [notification userInfo]; CGRect keyboardSize = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue]; CGRect newTextViewFrame = self.textView.frame; newTextViewFrame.size.height += keyboardSize.size.height - 70; self.textView.frame = newTextViewFrame; } </code></pre> <p>The textView seems to rezise to the right size, but when the user types the cursor ends up "outside" the textView frame. See picture below:</p> <p><img src="https://i.stack.imgur.com/2CJqf.gif" alt="enter image description here"></p> <p>The yellow area is the <code>UITextView</code> frame (I don't know what the blue line next to the R key is). I find this quite wired. I'm using iOS7 if that makes any difference. </p> <p>Any ideas or tips?</p> <p><strong>Update</strong></p> <p>I have a UITextView subclass that draws horizontal lines with the following method (if that makes any difference):</p> <pre><code>- (void)drawRect:(CGRect)rect { //Get the current drawing context CGContextRef context = UIGraphicsGetCurrentContext(); //Set the line color and width CGContextSetStrokeColorWithColor(context, [UIColor colorWithRed:229.0/255.0 green:244.0/255.0 blue:255.0/255.0 alpha:1].CGColor); CGContextSetLineWidth(context, 1.0f); //Start a new Path CGContextBeginPath(context); //Find the number of lines in our textView + add a bit more height to draw lines in the empty part of the view NSUInteger numberOfLines = (self.contentSize.height + rect.size.height) / self.font.lineHeight; CGFloat baselineOffset = 6.0f; //iterate over numberOfLines and draw each line for (int x = 0; x &lt; numberOfLines; x++) { //0.5f offset lines up line with pixel boundary CGContextMoveToPoint(context, rect.origin.x, self.font.lineHeight*x + 0.5f + baselineOffset); CGContextAddLineToPoint(context, rect.size.width, self.font.lineHeight*x + 0.5f + baselineOffset); } // Close our Path and Stroke (draw) it CGContextClosePath(context); CGContextStrokePath(context); } </code></pre>
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    1. COI've encountered the same issue. It seems that `textView.font.lineHeight` is not accounted for adjusting the `contentOffset`. Correcting the offset delegate's `textViewDidChange:` does not work as its value reverts back somehow.
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      1. USDaniel Duan
    2. COOk, how did you solve it?
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    3. COCould this just be a problem with a certain unreleased, NDA'd SDK? Does it work with other iOS versions?
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      1. USJames Webster
 

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