如何在脚本中修改RectTransform属性[Unity 4.6 beta]

Question

您好,我正在使用Unity 4.6测试版的新UI系统...

尝试了不同的代码,查看了文档并搜索了但却找不到答案......

例如.我有一个图像,我想在运行时更改宽度和高度.

public GameObject image4;
image4.GetComponent<RectTransform>().rect.Set(0,0,100, 300);

这不起作用.而image4.GetComponent().rect.y只是GET,因此无法在运行时更改.

我也尝试过:

image4.transform.localScale.y = 15;

这也不起作用.

什么是在运行时更改大小的正确方法？你可以用JS或C#给我一个例子,没关系.

Answer 1

有一天研究.我找到了一个可以帮助我们处理新UI系统的扩展.如果你愿意,你可以改进这个扩展.

public static class RectTransformExtensions
{
    public static void SetDefaultScale(this RectTransform trans) {
        trans.localScale = new Vector3(1, 1, 1);
    }
    public static void SetPivotAndAnchors(this RectTransform trans, Vector2 aVec) {
        trans.pivot = aVec;
        trans.anchorMin = aVec;
        trans.anchorMax = aVec;
    }

    public static Vector2 GetSize(this RectTransform trans) {
        return trans.rect.size;
    }
    public static float GetWidth(this RectTransform trans) {
        return trans.rect.width;
    }
    public static float GetHeight(this RectTransform trans) {
        return trans.rect.height;
    }

    public static void SetPositionOfPivot(this RectTransform trans, Vector2 newPos) {
        trans.localPosition = new Vector3(newPos.x, newPos.y, trans.localPosition.z);
    }

    public static void SetLeftBottomPosition(this RectTransform trans, Vector2 newPos) {
        trans.localPosition = new Vector3(newPos.x + (trans.pivot.x * trans.rect.width), newPos.y + (trans.pivot.y * trans.rect.height), trans.localPosition.z);
    }
    public static void SetLeftTopPosition(this RectTransform trans, Vector2 newPos) {
        trans.localPosition = new Vector3(newPos.x + (trans.pivot.x * trans.rect.width), newPos.y - ((1f - trans.pivot.y) * trans.rect.height), trans.localPosition.z);
    }
    public static void SetRightBottomPosition(this RectTransform trans, Vector2 newPos) {
        trans.localPosition = new Vector3(newPos.x - ((1f - trans.pivot.x) * trans.rect.width), newPos.y + (trans.pivot.y * trans.rect.height), trans.localPosition.z);
    }
    public static void SetRightTopPosition(this RectTransform trans, Vector2 newPos) {
        trans.localPosition = new Vector3(newPos.x - ((1f - trans.pivot.x) * trans.rect.width), newPos.y - ((1f - trans.pivot.y) * trans.rect.height), trans.localPosition.z);
    }

    public static void SetSize(this RectTransform trans, Vector2 newSize) {
        Vector2 oldSize = trans.rect.size;
        Vector2 deltaSize = newSize - oldSize;
        trans.offsetMin = trans.offsetMin - new Vector2(deltaSize.x * trans.pivot.x, deltaSize.y * trans.pivot.y);
        trans.offsetMax = trans.offsetMax + new Vector2(deltaSize.x * (1f - trans.pivot.x), deltaSize.y * (1f - trans.pivot.y));
    }
    public static void SetWidth(this RectTransform trans, float newSize) {
        SetSize(trans, new Vector2(newSize, trans.rect.size.y));
    }
    public static void SetHeight(this RectTransform trans, float newSize) {
        SetSize(trans, new Vector2(trans.rect.size.x, newSize));
    }
}

我在这里找到的源代码:http: //orbcreation.com

Answer 2

嘿朋友试试这个改变UI游戏对象的位置和宽度

如果要使用对象的实例,请使用This leftButton.GetComponent<RectTransform>().anchoredPosition = new Vector2(-125, -36f); rightButton.GetComponent<RectTransform>().sizeDelta = new Vector2(x, y);

如果想将脚本放在UI对象上,请尝试更改高度和宽度

GetComponent<RectTransform>().anchoredPosition = new Vector2(-125, -36f);
GetComponent<RectTransform>().sizeDelta = new Vector2(x, y)