Question

我无法使用MonoTouch以编程方式对UIButton的颜色进行硬编码。标准的RectRound按钮是白色的，我需要这个按钮是蓝色的。这是我的代码：

     private void CreateButton() {
        RectangleF viewFrame = this.subView.Frame;
        RectangleF buttonFrame = new RectangleF (10f, viewFrame.Bottom - 200f, viewFrame.Width - 20f, 50f);

        this.buttonChangeColor = UIButton.FromType (UIButtonType.RoundedRect);
        this.buttonChangeColor.Frame = buttonFrame;
        this.buttonChangeColor.SetTitle ("Tap to change view color", UIControlState.Normal);
        this.buttonChangeColor.SetTitle ("Changing color...", UIControlState.Highlighted);
        this.buttonChangeColor.SetTitleColor (UIColor.Red, UIControlState.Normal);
 //This here is my attempt. The rounded rectangle remains white and I can see some blue peeking out from behind but I need the button to be blue, not the background
        this.buttonChangeColor.BackgroundColor = UIColor.Blue; 
        this.buttonChangeColor.TouchUpInside += this.buttonChangeColor_TouchUpInside;
        this.subView.AddSubview (this.buttonChangeColor);

    }

非常感谢您的帮助！

Answer 1

查看Is it even possible to change a UIButtons background color?

它解释了为什么，对于UIButtonType.RoundedRect，您将无法像预期的那样更改背景颜色。即您需要创建一个Custom按钮并复制圆角直观外观。

Answer 2

我在之前的帖子中做了这个，所以检查我粘贴的链接 change UIButton Color dynamically

MonoTouch中的自定义UIButton颜色

2 个答案: