Unity内部打开Web网页——《UniWebView》,unity与网页相互调用并且传参数_unity 调用webview的方法

1.首先找插件，UniWebView2.9，附上下载链接如下，https://pan.baidu.com/s/1HPvFzKU7WNHSvxHrKtX8zg   提取码：4g2i。

2.导入之后就是这样。

3.参考网上教程:( https://blog.csdn.net/qq_37310110/article/details/79761844)。

4,在UniWebViewHelper里面添加两个方法。

 public static UniWebView CreateUniWebView(GameObject go, string url, float top, float left, float bottom, float right)
 
    {
 
        if (go == null || !go.activeSelf)
 
        {
 
            return null;
 
        }
 
        var view = go.GetComponent<UniWebView>();
 
        if (view == null)
 
        {
 
            view = go.AddComponent<UniWebView>();
 
        }
 
        view.insets = new UniWebViewEdgeInsets(UniWebViewHelper.ConvertPixelToPoint(top, false), UniWebViewHelper.ConvertPixelToPoint(left, true), UniWebViewHelper.ConvertPixelToPoint(bottom, false), UniWebViewHelper.ConvertPixelToPoint(right, true));
 
        view.SetShowSpinnerWhenLoading(true);
 
        view.immersiveMode = false;
 
        view.url = url;
 
        return view;
 
    }
    
    private static int ConvertPixelToPoint(float num, bool v)
 
    {
 
#if UNITY_IOS && !UNITY_EDITOR
 
        float scale = 0;
 
        if(v)
 
        {
 
            scale = 1f * screenWidth / Screen.width;
 
        }
 
        else
 
        {
 
            scale = 1f * screenHeight / Screen.height;
 
        }
 
        return (int)(num*scale);
 
#endif
 
        return (int)num;
 
    }

5.创建一个新脚本OpenURL,挂在到Canvas上。

#region 模块信息
// **********************************************************************
// Copyright (C) 2018 Blazors
// Please contact me if you have any questions
// File Name:             OpenURL
// Author:                romantic123fly
// WeChat||QQ:            at853394528 || 853394528 
// **********************************************************************
#endregion
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
 
public class OpenURL : MonoBehaviour {
    public InputField _url;
    public Button _enterBtn;
    public Button _backBtn;
    public Text _text;
    
    UniWebView _view;
    private void Awake()
    {
        _url.text = "https://www.baidu.com";
        _enterBtn.onClick.AddListener(OpenUrl);
        _backBtn.onClick.AddListener(CloseUrl);
    }
    public void OpenUrl()
    {
        
        if (_view!=null)
        { 
            _view.CleanCache();
        }
        if (_url.text == null)
        {
            return;
        }
        _view = UniWebViewHelper.CreateUniWebView(gameObject, _url.text, 100,0,0,0);
        _view.Load();
        
        _view.OnLoadComplete += View_OnLoadComplete;
        _view.OnReceivedMessage += _webView_OnMessageReceived;
        _view.OnEvalJavaScriptFinished += _webview_OnEvalJavaScriptFinished;
        /*
        private void RemoveAllListeners() {
        this.OnLoadBegin = null;
        this.OnLoadComplete = null;
        this.OnReceivedMessage = null;
        this.OnReceivedKeyCode = null;
        this.OnEvalJavaScriptFinished = null;
        this.OnWebViewShouldClose = null;
        this.InsetsForScreenOreitation = null;
    }
         */
    }
    private void View_OnLoadComplete(UniWebView webView, bool success, string errorMessage)
    {
        if (success)
        {
            //  显示 加载完成的界面  
            webView.Show();
            _backBtn.gameObject.SetActive(true);
            //unity调用网页的showAlert方法，并传入参数2222
            webView.EvaluatingJavaScript("showAlert('2222')");
        }
        else
        {
            Debug.LogError("Something wrong in webview loading: " + errorMessage);
        }
    }
    public void CloseUrl()
    {
        _view.Hide();
        _view.OnLoadComplete -= View_OnLoadComplete;
        _view.OnReceivedMessage -= _webView_OnMessageReceived;
        _view.OnEvalJavaScriptFinished -= _webview_OnEvalJavaScriptFinished;
        Destroy(_view);
    }
    
    //接收到网页事件消息
    private void _webView_OnMessageReceived(UniWebView webView, UniWebViewMessage message)
    {
        switch (message.path)
        {
            case "close":
                /*var name = message.args["name"];//网页传递过来的参数args[] json
                Debug.Log(name);*/
                Destroy(webView.gameObject);
                webView.CleanCache();
                break;
            default:
                break;
        }
    }
    private void _webview_OnEvalJavaScriptFinished(UniWebView webView, string result)
    {
        if (result.Equals("0"))
        {
           Debug.Log("调用网页的showAlert成功");
        }
        else
        {
            Debug.Log("调用网页的showAlert失败");
        }
    }
}

网页端代码。

参考连接； https://www.jianshu.com/p/c4f49922b8e9

https://blog.csdn.net/qq_37310110/article/details/80469144

https://blog.csdn.net/qq_37310110/article/details/79761844

https://blog.csdn.net/u010019717/article/details/52890644