Unity3D basics - traversing child objects

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table of Contents

1, blog introduction

2, content

(1) traversing child objects

(2) traversing descendant objects

(3) Screening traversal

3, push

4, the conclusion

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1, blog introduction

This article will record the basics of traversing sub-objects of an object or traversing sub-objects and grandchild objects, or filtering traversal

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2, content

(1) traversing child objects

(This method traverses child objects, does not involve grandchild objects)

                foreach (Transform child in transform)
		{
			 Debug.Log("sub-object name:"+child.name);
		}

	        for (int i = 0; i < transform.childCount; i++)
		{
			var child = transform.GetChild(i);
			 Debug.Log("sub-object name:"+child.name);
		}

(2) traversing descendant objects

(This method can iterate through all child and grandchild objects)

                for (int i = 0; i < GetComponentsInChildren<Transform>(true).Length; i++)
		{
			 Debug.Log("Sub-object name:"+GetComponentsInChildren<Transform>(true)[i].name);
		}

                foreach(Transform child in GetComponentsInChildren<Transform>(true))
		{
			 Debug.Log("sub-object name:"+child.name);
		}

(3) Screening traversal

(This method can obtain objects with specific properties in descendant objects)

                for (int i = 0; i < GetComponentsInChildren<Button>(true).Length; i++)
		{
			 Debug.Log("Sub-object name:"+GetComponentsInChildren<Button>(true)[i].name);
		}

                                 Note: Output all Buttons in descendants

                foreach(Transform child in GetComponentsInChildren<Text>(true))
		{
			Debug.Log("sub-object name:"+child.name);
		}
                                 Note: Output all the Text in the descendant object

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3, push

Nothing to push. . .

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4, the conclusion

This record is used, and the blogger's ability is limited. If there is any error in the text, you are welcome to comment on the accusation.

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