xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
tools:context=".MainActivity" >
<TextView
android:id="@+id/tv"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
<WebView
android:layout_below="@+id/tv"
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</RelativeLayout>
package com.example.webview_workflowy;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.webkit.WebView;
import android.widget.Toast;
public class MainActivity extends Activity {
private WebView webView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//加载页面
webView = (WebView) findViewById(R.id.webview);
//允许JavaScript执行
webView.getSettings().setJavaScriptEnabled(true);
//找到Html文件，也可以用网络上的文件
webView.loadUrl("file:///android_asset/index.html");
// 添加一个对象, 让JS可以访问该对象的方法, 该对象中可以调用JS中的方法
webView.addJavascriptInterface(new Contact(), "contact");
}
private final class Contact {
//JavaScript调用此方法拨打电话
public void call(String phone) {
//startActivity(new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phone)));
Toast.makeText(MainActivity.this, phone, Toast.LENGTH_LONG).show();
}
//Html调用此方法传递数据
public void showcontacts() {
String json = "[{\"name\":\"zxx\", \"amount\":\"9999999\", \"phone\":\"18600012345\"}]";
// 调用JS中的方法
webView.loadUrl("javascript：show('" + json + "')");
}
public void toast(String str){
Toast.makeText(MainActivity.this, "aaaaaaaaaaaa--- " + str, Toast.LENGTH_LONG).show();
}
}
}
html
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
function show(jsondata){
var jsonobjs = eval(jsondata);
var table = document.getElementById("personTable");
for(var y=0; y<jsonobjs.length; y++){
var tr = table.insertRow(table.rows.length);
var td1 = tr.insertCell(0);
var td2 = tr.insertCell(1);
td2.align = "center";
var td3 = tr.insertCell(2);
td3.align = "center";
td1.innerHTML = jsonobjs[y].name;
td2.innerHTML = jsonobjs[y].amount;
td3.innerHTML = "<a href='javascript：contact.call(\""+ jsonobjs[y].phone+ "\")'>"+ jsonobjs[y].phone+ "</a>";
}
}
</script>
</head>
<body onload="javascript：contact.showcontacts()">
<button id="button" onclick = "javascript：contact.toast('123')">haha</button>
<table border="0" width="100%" id="personTable" cellspacing="0">
<tr>
<td width="30%">姓名</td>
<td width="30%" align="center">存款</td>
<td align="center">电话</td>
</tr>
</table>
</body>
</html>
