先上图来看看：

正确的

Simulator Screen Shot - iPhone 11 Pro Max - 2019-09-29 at 17.35.59.png

错误的

Simulator Screen Shot - iPhone 11 Pro Max - 2019-09-29 at 17.36.52.png

解决办法

解决输入框位置显示不对

- (CGRect)rightViewRectForBounds:(CGRect)bounds {
    CGRect rightViewRect = [super rightViewRectForBounds:bounds];

    if (@available(iOS 13.0, *)) {
        
        CGFloat left = self.frame.size.width - self.rightView.frame.size.width;
        CGFloat top = round((self.frame.size.height - self.rightView.frame.size.height)/2.0);
        rightViewRect = CGRectMake( left, top, self.rightView.frame.size.width , self.rightView.frame.size.height);
    } else {
        
    }

    return rightViewRect;
}


- (CGRect)leftViewRectForBounds:(CGRect)bounds {
    CGRect leftViewRect = [super leftViewRectForBounds:bounds];

    if (@available(iOS 13.0, *)) {
        CGFloat top = round((self.frame.size.height - self.leftView.frame.size.height)/2.0);

        leftViewRect = CGRectMake(0, top, self.leftView.frame.size.width, self.leftView.height);

    } else {
        
    }
    return leftViewRect;
}

喜欢的话，给个星星哟，如果没有解决你的问题，也可以留言，我看到了，会想想解决办法的