我正在Xamarin(C#)中编写iOS的应用程序。

在iOS中,Android的“toast通知”相当于什么?

documentation:



例如,在Android(C#)中,我可以像这样显示它们:

Toast.MakeText(this, "Added " + counttext.Text +" pcs to cart" , ToastLength.Long).Show();

如何为iOS编写相同的代码?

感谢您的回答。

最佳答案

在Xamarin iOS中,您必须使用带有动画的自定义设计的UIView才能达到相同的效果

public void ShowToast(String message, UIView view)
    {
        UIView residualView = view.ViewWithTag(1989);
        if (residualView != null)
            residualView.RemoveFromSuperview();

        var viewBack = new UIView(new CoreGraphics.CGRect(83, 0, 300, 100));
        viewBack.BackgroundColor = UIColor.Black;
        viewBack.Tag = 1989;
        UILabel lblMsg = new UILabel(new CoreGraphics.CGRect(0, 20, 300, 60));
        lblMsg.Lines = 2;
        lblMsg.Text = message;
        lblMsg.TextColor = UIColor.White;
        lblMsg.TextAlignment = UITextAlignment.Center;
        viewBack.Center = view.Center;
        viewBack.AddSubview(lblMsg);
        view.AddSubview(viewBack);
        roundtheCorner(viewBack);
        UIView.BeginAnimations("Toast");
        UIView.SetAnimationDuration(3.0f);
        viewBack.Alpha = 0.0f;
        UIView.CommitAnimations();
    }

10-02 14:28