测试Android webview 加载本地html

android html 前端 2023-12-23 06:12:27 204人浏览八月长安

摘要

最近开发一个需要未联网功能的App, 不熟悉使用Java原生开发界面，于是想使用本地H5做界面，本文测试了使用本地html加载远程数据。直接上代码： MainActivity.java package com.alex.WEBviewloc

最近开发一个需要未联网功能的App, 不熟悉使用Java原生开发界面，于是想使用本地H5做界面，本文测试了使用本地html加载远程数据。直接上代码：

MainActivity.java

package com.alex.WEBviewlocal;import Androidx.appcompat.app.AppCompatActivity;import android.os.Build;import android.os.Bundle;import android.webkit.CookieManager;import android.webkit.WebResourceRequest;import android.webkit.WebSettings;import android.webkit.WebView;import android.webkit.WebViewClient;import java.lang.reflect.InvocationTargetException;import java.lang.reflect.Method;public class MainActivity extends AppCompatActivity {    private WebView webView;    private String url="file:///android_asset/web/index.html";    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        webView = findViewById(R.id.webview);        WebSettings webSettings = webView.getSettings();        CookieManager cookieManager = CookieManager.getInstance();        cookieManager.setAcceptCookie(true);        webSettings.setjavascriptEnabled(true); // 设置支持javascript        webSettings.setUseWideViewPort(true);   // 将图片调整到适合webview的大小        webSettings.setLoadWithOverviewMode(true);  // 缩放至屏幕的大小        webSettings.setLayoutAlGorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);        webSettings.setUserAgentString("User-Agent");        webSettings.setLightTouchEnabled(true); // 设置用鼠标激活被选项        webSettings.setBuiltInZoomControls(true);   // 设置支持缩放        webSettings.setDomStorageEnabled(true); //设置DOM缓存，当H5网页使用localstorage时，一定要设置        webSettings.setDatabaseEnabled(true);        webSettings.setCacheMode(WebSettings.LOAD_NO_CACHE); // 设置去缓存，防止加载的为上一次加载的数据        webSettings.setSupportZoom(true);   // 设置支持变焦        webView.setHapticFeedbackEnabled(false);        webSettings.setPluginState(WebSettings.PluginState.ON);        webSettings.setAllowFileAccess(true);        webSettings.setAllowContentAccess(true);        webSettings.setAllowUniversalAccessFromFileURLs(true);        webSettings.setAllowFileAccessFromFileURLs(true);        webView.loadUrl(url);//        try{//            if(Build.VERSION.SDK_INT>=16){//                Class clazz = webView.getSettings().getClass();//                Method method = clazz.getMethod(//                        "setAllowUniversalAccessFromFileURLs", boolean.class);//                if(method!=null){//                    method.invoke(webView.getSettings(),true);//                }//            }//        } catch (NoSuchMethodException e) {//            throw new RuntimeException(e);//        } catch (InvocationTargetException e) {//            throw new RuntimeException(e);//        } catch (IllegalAccessException e) {//            throw new RuntimeException(e);//        }////        webView.loadUrl(url);//        webView.setWebViewClient(new WebViewClient(){//            @Override//            public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {//                return super.shouldOverrideUrlLoading(view, request);//            }//        });    }}

activity_main.xml

<LinearLayout xmlns:android="Http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"><WebView    android:id="@+id/webview"    android:layout_width="match_parent"    android:layout_height="match_parent">WebView>LinearLayout>

h5 文件

DOCTYPE html><html lang="en"><head>    <meta charset="UTF-8">    <meta name="viewport" content="width=device-width, initial-scale=1.0">    <title>Documenttitle>    <script src="./Vue.min.js">script>    <script src="./axiOS.min.js">script>head><body>    <div id="app">        <h2>{{message}}h2>        <ul>            <li v-for="user in users" :key="user.id">{{user.name}}li>        ul>    div>    <script>        var app = new Vue({            el:'#app',            data(){                return {                    message:'Hello Vue!',                    users:[]                }            },            mounted(){                axios.get('https://JSONplaceholder.typicode.com/users').then(response => {                    this.users = response.data                }).catch(error => {                    console.log(error)                })            }        })    script>body>html>