Android中获取网页表单中的数据

MainActivity如下:

package cn.testjavascript;
import java.util.StringTokenizer;
import android.os.Bundle;
import android.webkit.WebView;
import android.app.Activity;
/**
 * Demo描述:
 * 在Android中获取网页里表单中的数据
 */
public class MainActivity extends Activity {
   private WebView mWebView;		
   private String date =null;
   private String email = null;
   private String username = null;
   private String sex = null;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		init();
	}
	private void init(){
		mWebView=(WebView) findViewById(R.id.webView);
		initWebViewSettings();
		mWebView.loadUrl("file:///android_asset/form.html");
		//注意addJavascriptInterface方法中第二参数
		//它表示我们的java对象javaClass的别名.
		//这样Javascript就可以通过该别名来调用Android中的方法
		//即Javascript代码中的:window.testform.send(date+"|"+email+"|"+name+"|"+sex);
		//send是方法名
		//testform是别名
		mWebView.addJavascriptInterface(new Object() {
			public void send(String userInfo) {
				StringTokenizer userInfoStringTokenizer = new StringTokenizer(userInfo, "|");
				date = userInfoStringTokenizer.nextToken();
				email = userInfoStringTokenizer.nextToken();
				username = userInfoStringTokenizer.nextToken();
				sex = userInfoStringTokenizer.nextToken();
				System.out.println("userInfoStringTokenizer="+userInfoStringTokenizer.toString());
				System.out.println("date=" + date);
				System.out.println("email=" + email);
				System.out.println("username=" + username);
				System.out.println("sex=" + sex);
				};
		}, "testform");

		
	}
	private void initWebViewSettings(){
		mWebView.setVerticalScrollBarEnabled(false);
		mWebView.setHorizontalScrollBarEnabled(false);
		mWebView.getSettings().setJavaScriptEnabled(true);
		mWebView.getSettings().setSupportZoom(true);
		mWebView.getSettings().setDomStorageEnabled(true);
		mWebView.getSettings().setPluginsEnabled(true);
		mWebView.requestFocus();
		mWebView.getSettings().setUseWideViewPort(true);
		mWebView.getSettings().setLoadWithOverviewMode(true);
		mWebView.getSettings().setSupportZoom(true);
		mWebView.getSettings().setBuiltInZoomControls(true);
	}
	
}

 

main.xml如下:

<RelativeLayout 
    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"
    >

    <WebView
        android:id="@+id/webView"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_centerInParent="true"
     />

</RelativeLayout>


 

form.html如下:

<body>
		<form action="" method="post">
		时间:<br>
		<select id="shijian" name="date">
		    <option value="2011">2011</option>
		    <option value="2012">2012</option>
		    <option value="2013">2013</option>
		    <option value="2014">2014</option>
		    <option value="2015">2015</option>
		</select><br>
			邮箱:
			<input id="email" type="text" name="emailID" />
			<br>
			昵称:
			<input id="name" type="text" name="username" />
			<br>
			性别:<br>
			<input id="men" type="radio" name="sex" value="men"/>男
		    <input id="women" type="radio" name="sex" value="women"/>女
		    <br>
		    <input type="submit" value="注册" onclick="f()"/>
		    <input type="button" value="取消" />
		</form>
	</body>
	<script type="text/JavaScript" language="javascript">
	     function f(){
	        var email = document.getElementById('email').value;
	        var name = document.getElementById('name').value;
	        var date = document.getElementById('shijian').value;
	        if(document.getElementById('men').checked && !document.getElementById('women').checked){
	        var sex = document.getElementById('men').value;
	        }else if(!document.getElementById('men').checked && document.getElementById('women').checked){
	        var sex = document.getElementById('women').value;
	        }
	        window.testform.send(date+"|"+email+"|"+name+"|"+sex);	       
         }     
		</script>


 

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