limit number of characters user may enter into mul

问题:

In some sense this question has already been answered at Limit number of characters in uitextview. But my particular case is that I have more than one textview in the same ViewController. So I am not sure how to fix that problem. Say I only have two textViews. How might I handle these cases:

• they both have the same character limit?

• each has different character limit? say 300 and 400 respectively.

Do I use IBAction? If yes how?

回答1:

So you need IBOutlet for both textviews

@property (weak, nonatomic) IBOutlet UITextField *textfield1;
@property (weak, nonatomic) IBOutlet UITextField *textfield2;

then in your delegate method

- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text

You simply add a check for the right textfield

if (self.textfield1 == textfield) {
// handle first text field here

} else {
// handle second text field here
}