WeiBlog

using System.Collections;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

public class InPanel : MonoBehaviour
{
public GameObject Load;
public Slider sl;
public Text text,next;

private void Awake()
{
    Load.SetActive(false);

}

void Update()
{
    if (Input .GetKeyDown (KeyCode.E ))
    {

        StartCoroutine(LoadLeve());
       
    }
    
}

IEnumerator LoadLeve()
{
    Load.SetActive(true);

    AsyncOperation operation = SceneManager.LoadSceneAsync(SceneManager.GetActiveScene().buildIndex + 1);

    operation.allowSceneActivation = false;

    while (!operation.isDone )
    {
        sl.value = operation.progress;
        text.text = operation.progress * 100 + "%";

        if (operation .progress >=0.9f)
        {
            sl.value = 1;
            text.text = "100%";
            next.text = "Pass Any Ket To Next";
            if (Input. anyKeyDown)
            {
                operation.allowSceneActivation = true;
            }
        }
        yield return null;
    }
}

}

//方式2
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
public class LoadGame : MonoBehaviour {

public Slider processView;

// Use this for initialization
void Start () {
    LoadGameMethod();
    
}

// Update is called once per frame
void Update () {
	

}
public void LoadGameMethod()
{
    StartCoroutine(StartLoading_4(2));
}

private IEnumerator StartLoading_4(int scene)
{
    int displayProgress = 0;
    int toProgress = 0;
    AsyncOperation op = SceneManager.LoadSceneAsync(scene); 
    op.allowSceneActivation = false;
    while (op.progress < 0.9f)
    {
        toProgress = (int)op.progress * 100;
        while (displayProgress < toProgress)
        {
            ++displayProgress;
            SetLoadingPercentage(displayProgress);
            yield return new WaitForEndOfFrame();
        }
    }

    toProgress = 100;
    while (displayProgress < toProgress)
    {
        ++displayProgress;
        SetLoadingPercentage(displayProgress);
        yield return new WaitForEndOfFrame();
    }
    op.allowSceneActivation = true;
}

private void SetLoadingPercentage(float v)
{
    processView.value = v / 100;
}

}