UITextField rightViewMode odd behaviour

Question

I\'m adding a custom clear button (UIButton) to a UITextField as the rightView, however I\'ve found there\'s some weird behaviour on the viewMode. It doesn\'t seem to displa

Answer 1

Simple code for solve this problem

- (void)textFieldDidBeginEditing:(UITextField *)textField
{
    textField.rightViewMode=UITextFieldViewModeAlways;
}

- (BOOL)textFieldShouldEndEditing:(UITextField *)textField
{
     textField.rightViewMode=UITextFieldViewModeNever;
    return YES;
}

Answer 2

I recently ran into the same problem and ended up setting right view mode to UITextFieldViewModeAlways and manually showing/hiding that button when it's needed (made proxy delegate which monitored text field state, set button's visibility and passed messages to actual delegate).

Answer 3

This fixes the bug :

- (BOOL)becomeFirstResponder
{
    BOOL ret = YES ;

    ret = [super becomeFirstResponder] ;

    if( ret && ( _setupClearButtonMode == UITextFieldViewModeWhileEditing ) )
        self.rightViewMode = UITextFieldViewModeAlways ;

    return ret ;
}

- (BOOL)resignFirstResponder
{
    BOOL ret = YES ;

    ret = [super resignFirstResponder] ;

    if( ret && ( _setupClearButtonMode == UITextFieldViewModeWhileEditing ) )
        self.rightViewMode = UITextFieldViewModeWhileEditing ;

    return ret ;
}

In your subclass of UITextField with the var _setupClearButtonMode set on init.