Loading界面-异步加载场景
Demo展示
加载新场景时,需要加载大量模型外部文件等,比较耗时,又不能让画面卡住不动;
很多时候会做一个加载界面显示读条;
代码
非常简直,就不赘述了;
一个slider条,progress为异步百分比;
限制读条3s结束,小于3s等待;
注意异步读条progress到不了1,所以0.9判断加载完成;
public class Loading : MonoBehaviour
{
public string scenceName;
AsyncOperation async;
public Slider m_pProgress;
private int progress = 0;
private float time = 3f;
private float startTime = 0;
private void Start()
{
StartCoroutine(LoadScenes());
startTime = Time.time;
}
IEnumerator LoadScenes()
{
int nDisPlayProgress = 0;
async = SceneManager.LoadSceneAsync(scenceName);
async.allowSceneActivation = false;
while (async.progress < 0.9f)
{
progress = (int)async.progress * 100;
while (nDisPlayProgress < progress)
{
++nDisPlayProgress;
m_pProgress.value = (float)nDisPlayProgress / 100;
yield return new WaitForEndOfFrame();
}
yield return null;
}
progress = 100;
while (nDisPlayProgress < progress)
{
++nDisPlayProgress;
m_pProgress.value = (float)nDisPlayProgress / 100;
yield return new WaitForEndOfFrame();
}
float temp = Time.time - startTime;
if (temp < time)
yield return new WaitForSeconds(time - temp);
async.allowSceneActivation = true;
}
}
测试代码:
加载场景时,记在loading界面,设置需要加载的场景名称;
public class MainScence : MonoBehaviour
{
public Button btnLoad;
void Start()
{
btnLoad.onClick.AddListener(OnLoadFight);
}
private void onl oadFight()
{
GameObject go = Instantiate(Resources.Load<GameObject>("Loading"), transform);
go.GetComponent<Loading>().scenceName = "FightScence";
}
}