Question

我使用以下代码将图像添加到画布但是图像位于左下角我希望图像位于画布的中心任何人都可以帮助我

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class TestController : MonoBehaviour {

    public GameObject canvas;
    //public Sprite refSprite;

    // Use this for initialization
    void Start () {

        GameObject imgObject = new GameObject("testAAA");

        RectTransform trans = imgObject.AddComponent<RectTransform>();
        trans.anchoredPosition = new Vector2(0.5f, 0.5f);
        trans.localPosition = new Vector3(0, 0, 0);
        trans.position = new Vector3(0, 0, 0);


        Image image = imgObject.AddComponent<Image>();
        Texture2D tex = Resources.Load<Texture2D>("red");
        image.sprite = Sprite.Create(tex, new Rect(0, 0, tex.width, tex.height), new Vector2(0.5f, 0.5f));
        imgObject.transform.SetParent(canvas.transform);


    }

    // Update is called once per frame
    void Update () {

    }
}

Answer 1

您必须先设置父级，然后设置位置/旋转/缩放！

void Start () {
    GameObject imgObject = new GameObject("testAAA");

    RectTransform trans = imgObject.AddComponent<RectTransform>();
    trans.transform.SetParent(canvas.transform); // setting parent
    trans.localScale = Vector3.one;
    trans.anchoredPosition = new Vector2(0f, 0f); // setting position, will be on center
    trans.sizeDelta= new Vector2(150, 200); // custom size

    Image image = imgObject.AddComponent<Image>();
    Texture2D tex = Resources.Load<Texture2D>("red");
    image.sprite = Sprite.Create(tex, new Rect(0, 0, tex.width, tex.height), new Vector2(0.5f, 0.5f));
    imgObject.transform.SetParent(canvas.transform);
}

Unity UI以编程方式添加图像

1 个答案: