Moving the cursor in an UITextView

Question

I try to move the cursor when a UITextView is selected(touched) to simulate kind of a UITextField placeholder thing.

I'd like the cursor to be at the beginning of the first line. My problem is, that [someTextField setSelectedRange]is not working reliably. When I call it in textView:shouldChangeTextInRange:replacementText: it works as it should. But this method is only called when the user starts typing. I'm using textViewDidBeginEditing: to move the cursor when the UITextView becomes the first responder:

- (void)textViewDidBeginEditing:(UITextView *)textView { if (textView == self.descriptionText) { CustomTextView* customTV = (CustomTextView *)textView; if ([customTV.text isEqualToString:customTV.placeholder]) { // text in text view is still the placeholder -> move cursor to the beginning customTV.text = customTV.placeholder; customTV.textColor = [UIColor lightGrayColor]; customTV.selectedRange = NSMakeRange(0, 0); } } }

Any ideas why customTV.selectedRange = NSMakeRange(0, 0); isn't working correctly in textViewDidBeginEditing: ?

Thanks for your help!

A solution answered here: stackoverflow.com/questions/29310035/… — Kjuly
– Kjuly, Commented Mar 19, 2020 at 12:39

Priest · Accepted Answer · 2013-04-07 21:35:33Z

Actually there's a very simple way of accomplishing this.

 // Count the characters on screen NSMutableString *numOfChar = [self.myTextField.text mutableCopy]; // Skip that many characters to the left self.myTextField.selectedRange = NSMakeRange(self.myTextField.selectedRange.location-[numOfChar length], 0);

Hope this helps.

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