防止在使用InputView时在UITextField中编辑文本并隐藏光标/插入符号/放大镜 [英] Prevent editing of text in UITextField and hide cursor/caret/magnifying glass while using an inputView

问题描述

我如何防止在UITextField中编辑文本以及隐藏光标/插入符号/放大镜，但是仍然显示键盘，因为我正在将inputView与UIPickerView/UIDatePickerView一起使用?

How do I prevent the editing of text in a UITextField along with hiding the cursor/caret/magnifying glass, but still present the keyboard, as I am using an inputView with a UIPickerView/UIDatePickerView?

将userInteractionEnabled设置为NO无效，因为它不再接收任何触摸，也不会显示键盘.

Setting userInteractionEnabled to NO does not work, because it no longer receives any touches and will not present the keyboard.

推荐答案

子类UITextField

//Disables caret
- (CGRect)caretRectForPosition:(UITextPosition *)position
{
    return CGRectZero;
}

//Disables magnifying glass
-(void)addGestureRecognizer:(UIGestureRecognizer *)gestureRecognizer
{
    if ([gestureRecognizer isKindOfClass:[UILongPressGestureRecognizer class]])
    {
        gestureRecognizer.enabled = NO;
    }
    [super addGestureRecognizer:gestureRecognizer];
}

在您的UITextFieldDelegate中

//Prevent text from being copied and pasted or edited with bluetooth keyboard.
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
    return NO;
}

现在，只需根据UIPickerView/UIDatePicker的结果以编程方式设置文本即可.

Now just set your text programmatically from the result of your UIPickerView/UIDatePicker.

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