CODEWITHSUNDEEP
objective-cioscocoa-touchuitextview
Mennny
Mennny

Reputation: 405

Moving the cursor in an UITextView

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!

Upvotes: 2

Views: 1024

Answers (1)

Priest
Priest

Reputation: 242

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.

Upvotes: 2

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