ifest:
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" package="com.example.myapplication"> <!-- 互联网 --> <uses-permission android:name="android.permission.INTERNET" /> <!-- 存储卡 --> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <application android:allowBackup="true" android:dataExtractionRules="@xml/data_extraction_rules" android:fullBackupContent="@xml/backup_rules" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/Theme.MyApplication" tools:targetApi="31"> <activity android:name=".MainActivity" android:exported="true"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
布局:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <TextView android:id="@+id/tv_web_path" android:layout_width="match_parent" android:layout_height="wrap_content" android:padding="5dp" android:textColor="@color/black" android:textSize="17sp" /> <WebView android:id="@+id/wv_assets_web" android:layout_width="match_parent" android:layout_height="match_parent" /> </LinearLayout>
activity:
package com.example.myapplication; import android.os.Bundle; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.TextView; import androidx.appcompat.app.AppCompatActivity; public class MainActivity extends AppCompatActivity { private String mFilePath = "file:///android_asset/html/index.html"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); TextView tv_web_path = findViewById(R.id.tv_web_path); // 从布局文件中获取名叫wv_assets_web的网页视图 WebView wv_assets_web = findViewById(R.id.wv_assets_web); tv_web_path.setText("下面网页来自资产文件:" + mFilePath); // 命令网页视图加载指定路径的网页 wv_assets_web.loadUrl(mFilePath); // 给网页视图设置默认的网页浏览客户端 wv_assets_web.setWebViewClient(new WebViewClient()); } }