C# 将UI图像大小设置为矩形Unity3D

我想更改UI图像的大小，使其与我实时创建的矩形的大小完全匹配，我尝试了下面的代码，但图像未与矩形对齐，如屏幕截图所示。我怎样才能解决这个问题

脚本：

public Image MyImage;

void Update () {

    Rect boundsDown = new Rect(0, Screen.height / 35, Screen.width / 1.05f, Screen.height /3);
    MyImage.rectTransform.sizeDelta = new Vector2(Screen.width / 1.1f, Screen.height / 3);
    MyImage.transform.position = boundsDown.position;
}

这是结果：

public Image MyImage;

void Update () {

    Rect boundsDown = new Rect(0, Screen.height / 35, Screen.width / 1.05f, Screen.height /3);
    MyImage.rectTransform.sizeDelta = new Vector2(Screen.width / 1.1f, Screen.height / 3);
    MyImage.transform.position = boundsDown.position;
}

---

您最好将图像设置为矩形的子元素，然后将其设置为父元素宽度和高度的100%。手动设置绝对值，就像你试图做的，有点脆，不会处理屏幕大小的变化之类的事情

public Image MyImage;
public RectTransform ParentRect;

void Update()
{
    MyImage.transform.parent = ParentRect.transform;
    MyImage.rectTransform.anchorMin = new Vector2(0f, 0f);
    MyImage.rectTransform.anchorMax = new Vector2(1f, 1f);
    MyImage.rectTransform.localPosition = new Vector3(0f, 0f, 0f);
}