/** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main);
Button button = (Button)findViewById(R.id.button1); button.setOnClickListener(new Button.OnClickListener(){ public void onClick(View v){ Intent intent = new Intent();
我看很多例子都是要html端回调webview的方法
下面是代码
服务器端用struts2做了一个简单的登陆画面
想通过webview直接调用FillContent方法，这个方法
会填入用户名，密码，然后等待3秒之后自动登陆。<%@page language="java" contentType="text/html;charset=GBK"%>
<html>
<head>
<title>登录页面</title>
<script type="text/javascript">
//function FillContent(UserName,PassWord){
function FillContent(){
//document.getElementsByName("username").item(0).value = UserName;
//document.getElementsByName("password").item(0).value = PassWord;
document.getElementsByName("username").item(0).value = '1';
document.getElementsByName("password").item(0).value = '2';
//睡眠n秒之后登录
window.setTimeout(Login,3000);
}function Login(){
document.forms[0].submit();
}
</script>
</head>
<body">
<form action="Login.action" method="post">
<table align="center">
<caption>
<h3>用户登录</h3>
</caption>
<tr>
<td>用户名:<input type="text" name="username"/></td>
</tr>
<tr>
<td>密 码:<input type="text" name="password"/></td>
</tr>
<tr align="center">
<td colspan="2">
<input type="submit" value="登录"/>
<input type="reset" value="重填"/>
</td>
</tr>
</table>
</form>
</body>
</html>
android的代码
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"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/><Button android:id="@+id/button1"
android:layout_width="match_parent"
android:text="Go"
android:layout_height="wrap_content">
</Button></LinearLayout>loginpagewebview.xml<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" android:orientation="vertical">
<Button android:id="@+id/button1" android:layout_height="wrap_content" android:text="Button" android:layout_width="wrap_content"></Button>
<WebView android:layout_width="fill_parent" android:id="@+id/webview1" android:layout_height="match_parent"></WebView>
</LinearLayout>
两个activity:package com.study;import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;public class AutoSetPageActivity extends Activity {
private Button button;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button button = (Button)findViewById(R.id.button1);
button.setOnClickListener(new Button.OnClickListener(){
public void onClick(View v){
Intent intent = new Intent();
Bundle bundle = new Bundle();
intent.putExtras(bundle);
intent.setClass(AutoSetPageActivity.this,LoginPageWebView.class);
startActivity(intent);
}
}
);
}
}package com.study;import android.app.Activity;
import android.webkit.WebViewClient;
import android.os.Bundle;
import android.webkit.WebView;
import org.apache.http.util.EncodingUtils;
import android.os.Handler;
import android.widget.Button;
import android.view.View.OnClickListener;
import android.view.View;public class LoginPageWebView extends Activity {
private WebView webview1;
private Handler mHandler = new Handler(); public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
try{
setContentView(R.layout.loginpagewebview);
webview1 = (WebView)findViewById(R.id.webview1);
webview1.setWebViewClient(new WebViewClient(){
public boolean shouldOverrideUrlLoading(WebView view,String url){
view.loadUrl(url);
return true;
}
});
// JavaScriptを有効にする
webview1.getSettings().setJavaScriptEnabled(true);
//如果要直接在android里面提交用户名，密码，可以写在postData中
String postData = "";
String url="http://10.0.2.2:8080/LoginSample2";
//webview1.postUrl(url,EncodingUtils.getBytes(postData, "BASE64"));
webview1.loadUrl(url);
/*webview1.addJavascriptInterface(new Object(){
public void clickOnAndroid(){
mHandler.post(new Runnable(){
public void run(){
webview1.loadUrl("javascript:FillContent('test','password')");
}
});
}
},"demo");*/
String para1 = "charlie"; String para2 = "24"; String p1 = "{'username':\"" + para1 + "\"}"; String p2 = "{'password':\" " + para2 + "\"}"; //webview1.loadUrl("javascript:FillContent("+p1+","+p2 +")");
webview1.loadUrl("javascript:FillContent()");
Button mButton = (Button) findViewById(R.id.button1);
//给button添加事件响应,执行JavaScript的fillContent()方法
mButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
webview1.loadUrl("javascript:FillContent()"); //这里的可以调用。。
}
}); //webview1.loadUrl("javascript:FillContent('test','password')"); }catch(Exception e){
e.printStackTrace();
}
}
}AndroidManifest.xml<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.study"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".AutoSetPageActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="LoginPageWebView"></activity>
</application>
<uses-permission android:name ="android.permission.INTERNET" ></uses-permission>
</manifest>