android使用webview加载网页

客官°小女子只卖身不卖艺 2022-08-26 15:10 260阅读 0赞

package com.example.webview;
    
    import android.os.Bundle;
    import android.annotation.SuppressLint;
    import android.app.Activity;
    import android.view.KeyEvent;
    import android.view.Menu;
    import android.webkit.WebSettings;
    import android.webkit.WebView;
    import android.webkit.WebViewClient;
    
    
    public class MainActivity extends Activity
    {
    
    	private WebView webview;  
    	@SuppressLint("SetJavaScriptEnabled")
    	@Override
    	protected void onCreate(Bundle savedInstanceState)
    	{
    		super.onCreate(savedInstanceState);
    		setContentView(R.layout.activity_main);
    		webview = (WebView) findViewById(R.id.webview);
    		WebSettings webSettings = webview.getSettings();
            //设置WebView属性，能够执行Javascript脚本  
    		webSettings.setJavaScriptEnabled(true);  
    		//设置可以访问文件
            webSettings.setAllowFileAccess(true);
             //设置支持缩放
            webSettings.setBuiltInZoomControls(true);
            //加载需要显示的网页  
            webview.loadUrl("http://www.baidu.com");  
            //设置Web视图  
            webview.setWebViewClient(new webViewClient ());  
    		
    	}
    	 
    
    	@Override
    	public boolean onCreateOptionsMenu(Menu menu)
    	{
    		// Inflate the menu; this adds items to the action bar if it is present.
    		getMenuInflater().inflate(R.menu.main, menu);
    		return true;
    	}
    	
    	@Override 
        //设置回退  
        //覆盖Activity类的onKeyDown(int keyCoder,KeyEvent event)方法  
        public boolean onKeyDown(int keyCode, KeyEvent event) {  
            if ((keyCode == KeyEvent.KEYCODE_BACK) && webview.canGoBack()) {  
                webview.goBack(); //goBack()表示返回WebView的上一页面  
                return true;  
            }  
            finish();//结束退出程序
            return false;  
        }  
          
        //Web视图  
        private class webViewClient extends WebViewClient {  
            public boolean shouldOverrideUrlLoading(WebView view, String url) {  
                view.loadUrl(url);  
                return true;  
            }  
        }  
    
    }

xml代码

<?xml version="1.0" encoding="utf-8"?> 
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
        android:orientation="vertical" 
        android:layout_width="fill_parent" 
        android:layout_height="fill_parent" 
        >    
        <WebView   
            android:id="@+id/webview" 
            android:layout_width="fill_parent" 
            android:layout_height="fill_parent" 
            /> 
    </LinearLayout>

[ 源代码][Link 1]

[Link 1]: http://download.csdn.net/download/abc5382334/7207903