Android - WebView

记得 要先给权限能够访问网络

在AndroidManifest.xml 中加入  <uses-permission android:name="android.permission.INTERNET"/>  就可以了

MainActivity.java

package com.example.webview;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
       
    }
    public void openweb(View v){
    	
    	 Toast.makeText(this, "正在进入网页", 0).show();
    	 WebView webview = (WebView)findViewById(R.id.webview);
         
         webview.loadUrl("https://www.baidu.com");
         
         webview.setWebViewClient(new WebViewClient());
         
   
         
         WebSettings websettings = webview.getSettings();
         websettings.setJavaScriptEnabled(true);
         
         websettings.setUseWideViewPort(true);
         websettings.setLoadWithOverviewMode(true);
         
         
    }
    

    
}

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >

   <Button 
       android:onClick="openweb"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:text="点击进入网页"
       />
   <WebView 
       android:id="@+id/webview"
       android:layout_width="match_parent"
       android:layout_height="match_parent"
       />

</LinearLayout>