Unity中对象池的使用

定义对象池

public class NewObjectPooler : MonoBehaviour{    public GameObject _gameObject;    //需要创建的预制对象    public int int_PooledAmount = 15;    //初始化数量    public Transform _tranForm;    //放置预制对象的容器    public bool bool_IsGrow = true;    //动态创建    List<GameObject> _gameObjects;    private void Awake ()    {        _gameObjects = new List<GameObject> ();        for (int i = 0; i < int_PooledAmount; i++) {            GameObject obj = (GameObject)Instantiate (_gameObject);            obj.transform.SetParent (_tranForm);            obj.transform.localScale = Vector3.one;            obj.transform.position = _tranForm.position;            obj.transform.rotation = _tranForm.rotation;            obj.SetActive (false);            _gameObjects.Add (obj);        }    }    // 初始化    public void Reset ()    {        for (int i = 0; i < _gameObjects.Count; i++) {            _tranForm.GetChild (i).gameObject.SetActive (false);        }    }    // 获取对象    public GameObject GetPooledGameObject ()    {        for (int i = 0; i < _gameObjects.Count; i++) {            if (!_gameObjects [i].activeInHierarchy) {                return _gameObjects [i];            }        }        // 动态添加        if (bool_IsGrow) {            GameObject obj = (GameObject)Instantiate (_gameObject);            obj.transform.SetParent (_tranForm);            obj.transform.localScale = Vector3.one;            obj.transform.position = _tranForm.position;            obj.transform.rotation = _tranForm.rotation;            _gameObjects.Add (obj);            return obj;          }        return null;    }}

对象池的使用

public void SetData (List<DataClass.TaskData> datas)    {        newObjectPooler.Reset ();        for (int i = 0; i < datas.Count; i++) {            GameObject obj = newObjectPooler.GetPooledGameObject ();            obj.SetActive (true);            UITaskItem item = obj.GetComponent<UITaskItem> ();            item.SetData (datas [i]);        }        content.sizeDelta = new Vector2 (content.sizeDelta.x,             (gridLayoutGroup.cellSize.y + gridLayoutGroup.spacing.y) * datas.Count);    }