How to set Sprite width and height to match parent-object width and height in-code?

Questions & Answers
1

I have instantiated a sprite. I have set the sprite as a child of an empty game object ( PARENT ). PARENT has a width and height stored in RectTransform. How can I set the Sprite rect to match the PARENT rect ( I would like the sprite to have the same width and height as the parent object ).

Code

 tCardDisplay = GameObject.Find("CardDisplay").transform;
    tCardRowPos = GameObject.Find("CardRowPos").transform;
    rectCardRowPos = GameObject.Find("CardRowPos").GetComponent<RectTransform>();

    GameObject go = new GameObject();
    Sprite sp = Instantiate(Resources.Load<Sprite>("card_blank_v000"),
        new Vector3(0, 0, 0),
        Quaternion.identity);
    SpriteRenderer sr = go.AddComponent<SpriteRenderer>();
    sr.sprite = sp;

This code loads the Sprite properly. The Sprite is used on multiple screens so I would like to resize it to suit the current screen ( whichever ). Upon Instantiation the Sprite is larger than the PARENT object. I am not sure how to resize the Sprite to match the PARENT object. Thanks for any replies.

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3

Assuming that parent (below) is the game object that includes SpriteRenderer, this is how it worked for me:

var parent = (gameObject.transform as RectTransform);
var sprite = GetComponent<SpriteRenderer>().sprite;
parent.localScale = parent.rect.size / sprite.rect.size * sprite.pixelsPerUnit;
2

I don’t have Unity and can’t give you a solution that is 100% going to work, but in the SpriteRenderer component you can get a value of SpriteRenderer.Bounds.Extents that will give you the size of a sprite, I would have to toy with it to make sure it will work for you, but here is the documentation on that.