Android WebView, 你好 (hello WebView)

Android 的WebView 可將 web 放入 xml 的view 之中
基本方法如下

1) 建立 Project

2) 修改 main.xml
res/layout/main.xml

 <?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"  
   android:gravity="center_horizontal">    
   <EditText  
           android:id="@+id/urlEditor"  
           android:layout_width="fill_parent"  
           android:layout_height="wrap_content"  
           android:lines="1"  
           android:inputType="textUri"  
           android:imeOptions="actionGo" />  
      <Button  
           android:id="@+id/confirmButton"  
           android:layout_width="fill_parent"  
           android:layout_height="wrap_content"  
           android:text="確定" />  
      <WebView  
    android:id="@+id/webview1"  
    android:layout_width="fill_parent"  
    android:layout_height="wrap_content"  
     />  
 </LinearLayout>  

3) 修改 HelloWebView.java
src/edu.android.hellowebview/HelloWebView.java

 package edu.android.hellowebview;  
 import android.app.Activity;  
 import android.os.Bundle;  
 import android.view.KeyEvent;  
 import android.view.View;  
 import android.webkit.WebView;  
 import android.widget.Button;  
 import android.widget.EditText;  
 public class HelloWebView extends Activity {  
      EditText urlEditor;  
      Button confirmButton;  
      WebView webView;  
   /** Called when the activity is first created. */  
   @Override  
   public void onCreate(Bundle savedInstanceState) {  
     super.onCreate(savedInstanceState);  
     setContentView(R.layout.main);  
     webView=(WebView)findViewById(R.id.webview1);  
     urlEditor=(EditText)findViewById(R.id.urlEditor);  
     confirmButton=(Button)findViewById(R.id.confirmButton);      
     confirmButton.setOnClickListener(new View.OnClickListener() {                 
                @Override  
                public void onClick(View v) {  
                     OpenUrl();                      
                }  
           });  
     urlEditor.setOnKeyListener(new View.OnKeyListener() {                 
                @Override  
                public boolean onKey(View v, int keyCode, KeyEvent event) {  
                     if(keyCode==KeyEvent.KEYCODE_ENTER){  
                          OpenUrl();  
                          return true;  
                     }  
                     return false;  
                }  
           });    
   }  
   private void OpenUrl(){  
     webView.loadUrl("http://"+urlEditor.getText().toString());  
   }  
 }  

4) 修改 AndroidManifest.xml

 <?xml version="1.0" encoding="utf-8"?>  
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"  
    package="edu.android.hellowebview"  
    android:versionCode="1"  
    android:versionName="1.0">  
   <uses-sdk android:minSdkVersion="3" />    
   <application android:icon="@drawable/icon" android:label="@string/app_name">  
     <activity android:name=".HelloWebView"  
          android:label="@string/app_name">  
       <intent-filter>  
         <action android:name="android.intent.action.MAIN" />  
         <category android:name="android.intent.category.LAUNCHER" />  
       </intent-filter>  
     </activity>  
   </application>  
   <uses-permission android:name="android.permission.INTERNET" />  
 </manifest>  

5) 測試結果