How would I check for a return key tap on the keyboard when a text view is first responder? So far I think I have to check the text parameter in the shouldChangeTextIn callback method of UITextViewDelegate. How would I check whether text is a return?
Accepted Reply
A UITextView has a delegate. The delegate has the method textViewDidChange: Look at the last character and determine if it is "\n"
Use this type of code:
-(void)textViewDidChange:(UITextView *)textView{
if(textView.text.length>1)
if([[textView.text substringFromIndex:textView.text.length-1] isEqualToString:@"\n"]){
// the textView text ended with a return character
}
}
Replies
hi,
you might want to look back on "Understanding UITextView Input." there's discussion there about the shouldChangeTextIn method and, what i think, is the suggestion to avoid asking for checking specifically about a return key tap.
hope that helps,
DMG
Did you try to set "Auto enable return key" ON in IB ?
That's in the Text Input Traits section of Attributes Inspector.
Yes. I am not sure what that does. I can't find documentation on it.
I found the documentation. That's not what I need.
A UITextView has a delegate. The delegate has the method textViewDidChange: Look at the last character and determine if it is "\n"
Use this type of code:
-(void)textViewDidChange:(UITextView *)textView{
if(textView.text.length>1)
if([[textView.text substringFromIndex:textView.text.length-1] isEqualToString:@"\n"]){
// the textView text ended with a return character
}
}
Use the UITextFieldDelegate
and implement textFieldShouldReturn
. It is called when the user presses the return key on the keyboard.