Detect Start and Stop Editing UITextView

Question

How can I call some code upon entering a UITextView (user taps to edit it) and leaving the view (user taps to leave it)?

Appreciate any help.

Answer 1

You could also implement the UITextViewDidChange delegate methods. I use the code below in my app for taking quick notes. Whenever the user has entered a character, the observer catches this from the notification center and calls the saveText method.

Here's how:

Add this line to the viewDidLoad method:

[NSNotificationCenter.defaultCenter addObserver:self selector:@selector(textViewDidChange:) name:UITextViewTextDidChangeNotification object:nil];

and these lines at the appropriate place in your code (like in the section that handles the text view delegate methods. TIP: Use pragma marks for this (#pragma mark - TextView Delegate Methods):

- (void)textViewDidChange:(UITextView *)textView{

    NSLog(@"textViewShouldEndEditing"); // Detect in log output if the method gets called
    [self saveText:nil]; // Call any method you like

}