我有一个图像在我的屏幕底部，就像一个卡通泡泡。

不需要复杂的计算就能做到吗？

我尝试了一个比例分布的水平堆栈视图，但当然，这需要从图像宽度对屏幕宽度开始进行计算。

下面是我目前所得到的代码:

    background = new UIImageView
    {
        TranslatesAutoresizingMaskIntoConstraints = false,
    };
    string base64String = ImageManager.ms_instance.GetAutoEvalImageAsBase64String(this.m_currentItem.id);
    background.Image = UIImage.LoadFromData(NSData.FromArray(Convert.FromBase64String(base64String)));

    this.View.AddSubview(background);

    bubbleSpeech = new UIImageView(UIImage.FromBundle("bubble_speech.png"));
    bubbleSpeech.TranslatesAutoresizingMaskIntoConstraints = false;

    qualif = new UIStackView
    {
        TranslatesAutoresizingMaskIntoConstraints = false,
        Axis = UILayoutConstraintAxis.Horizontal,
        Distribution = UIStackViewDistribution.FillProportionally,
        Alignment = UIStackViewAlignment.Center
    };

    qualif.AddArrangedSubview(new UIView());
    qualif.AddArrangedSubview(bubbleSpeech);
    qualif.AddArrangedSubview(new UIView());

    this.View.AddSubview(qualif);

    qualif.Anchor(bottom: this.View.SaferAreaLayoutGuide().BottomAnchor, leading: this.View.SaferAreaLayoutGuide().LeadingAnchor, trailing: this.View.SaferAreaLayoutGuide().TrailingAnchor/*, size: new CGSize(328f, 94f)*/);

    background.Anchor(top: this.View.SaferAreaLayoutGuide().TopAnchor, leading: this.View.SaferAreaLayoutGuide().LeadingAnchor, trailing: this.View.SaferAreaLayoutGuide().TrailingAnchor, bottom: this.View.SaferAreaLayoutGuide().BottomAnchor);

锚点帮助程序:

internal static void Anchor(this UIView uIView, NSLayoutYAxisAnchor top = null, NSLayoutXAxisAnchor leading = null, NSLayoutYAxisAnchor bottom = null, NSLayoutXAxisAnchor trailing = null, UIEdgeInsets padding = default, CGSize size = default)
{
    uIView.TranslatesAutoresizingMaskIntoConstraints = false;
    if (top != null)
    {
        uIView.TopAnchor.ConstraintEqualTo(top, padding.Top).Active = true;
    }

    if (leading != null)
    {
        uIView.LeadingAnchor.ConstraintEqualTo(leading, padding.Left).Active = true;
    }

    if (bottom != null)
    {
        uIView.BottomAnchor.ConstraintEqualTo(bottom, -padding.Bottom).Active = true;
    }

    if (trailing != null)
    {
        uIView.TrailingAnchor.ConstraintEqualTo(trailing, -padding.Right).Active = true;
    }

    if (size.Width != 0)
    {
        uIView.WidthAnchor.ConstraintEqualTo(size.Width).Active = true;
    }

    if (size.Height != 0)
    {
        uIView.HeightAnchor.ConstraintEqualTo(size.Height).Active = true;
    }
}

我很肯定这是很容易做到的，但我现在想不出来。

感谢任何帮助。