Unity异步加载场景（有进度条，百分比）
using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
public class AsyncLoadScene : MonoBehaviour
{
public Slider loadingSlider;
public Text loadingText;
private float loadingSpeed = 1;
private float targetValue;
private AsyncOperation operation;
// Use this for initialization
void Start()
{
loadingSlider.value = 0.0f;
if (SceneManager.GetActiveScene().name == "HallLoading")
{
//启动协程
StartCoroutine(AsyncLoading());
}
}
IEnumerator AsyncLoading()
{
operation = SceneManager.LoadSceneAsync(Globe.nextSceneName);
//阻止当加载完成自动切换
operation.allowSceneActivation = false;
yield return operation;
}
private void Update()
{
targetValue = operation.progress;
if (operation.progress >= 0.9f)
{
targetValue = 1.0f;
}
if (targetValue != loadingSlider.value)
{
//插值运算
loadingSlider.value = Mathf.Lerp(loadingSlider.value, targetValue, Time.deltaTime * loadingSpeed);
if (Mathf.Abs(loadingSlider.value - targetValue) < 0.01f)
{
loadingSlider.value = targetValue;
}
}
loadingText.text = ((int)(loadingSlider.value * 100)).ToString() + "%";
if ((int)(loadingSlider.value * 100) == 100)
{
//允许异步加载完毕后自动切换场景
operation.allowSceneActivation = true;
}
}
}
作者：ShenHaoDeHao
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