UITextField清除按钮与屏幕动画一起使用

Question

当用户输入文本字段时，我有一个屏幕可以执行动画（向上移动屏幕），以便在输入数据时保持可见状态，然后在用户输入数据后切换回来。我遇到的问题是当用户尝试使用文本框内的清除按钮（使用site_TextField.clearButtonMode = UITextFieldViewModeAlways进行设置）。文本字段中的流时，清除按钮被按下应该是：

textFieldShouldEndEditing - > textFieldDidEndEditing - > textFieldShouldClear - > textFieldShouldBeginEditing - > textFieldDidBeginEditing

然而，textFieldDidEndEditing方法，其中动画是在执行动画时调用，上面的序列停止，并且不调用textFieldShouldClear。我希望这是简单的，我只是想念。任何输入是赞赏！

- (BOOL)textFieldShouldBeginEditing:(UITextField *) textField 
{ 
    NSLog(@"In textFieldShouldBeginEditing"); 
    return YES; 
} 

- (void)textFieldDidBeginEditing:(UITextField *)textField 
{ 
    if (textField == site_TextField || textField == phone_TextField) { 
     [self animateTextField: textField up: YES]; 
    } 
} 

- (BOOL)textFieldShouldEndEditing:(UITextField *)textField 
{ 
    NSLog(@"In textFieldShouldEndEditing"); 
    return YES; 
} 

- (void)textFieldDidEndEditing:(UITextField *)textField 
{ 
    if (textField == site_TextField || textField == phone_TextField) { 
     [self animateTextField: textField up: NO]; 
    } 
} 

- (BOOL)textFieldShouldClear:(UITextField *)textField { 

    NSLog(@"In textFieldShouldClear"); 
    return YES; 
} 

- (void) animateTextField: (UITextField*) textField up: (BOOL) up 
{ 
    if (textField != site_TextField && textField != phone_TextField) { 
     return; 
    } 

    int movementDistance = 0; 
    if (textField == site_TextField) { 
     movementDistance = 100; 
    } else if (textField == phone_TextField) { 
     movementDistance = 170; 
    } 

    int movement = (up ? -movementDistance : movementDistance); 

    [UIView animateWithDuration:0.3 
          delay:0.0 
         options: UIViewAnimationOptionAllowUserInteraction 
        animations:^{ 
         self.view.frame = CGRectOffset(self.view.frame, 0, movement); 
        } 
        completion:^(BOOL finished){ 
        }]; 
} 

Answer 1

我怀疑第一textFieldShouldEndEditing和textFieldDidEndEditing通过触摸向下清除按钮触发。触摸起来触发textFieldShouldClear。但在动画中，textField会在触摸后立即移动，因此触摸不会进行注册。尝试使用textField didEndOnExit事件来触发动画关闭的方法。