我只是phonegap和javascript的初学者，因此在制作一个简单的应用程序时，我在index.html头中编写了以下代码，并且在运行代码时我的main.js文件没有被包含在内。我希望有人能帮我解决这个问题。
<!DOCTYPE HTML>
<html>
<head>
<meta name="viewport" content="width=320; user-scalable=no" />
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>Auth Demo</title>
<link rel="stylesheet" href="jquery.mobile/jquery.mobile-1.0rc2.css" type="text/css" charset="utf-8" />
<script type="text/javascript" src="js/jquery-1.7.min.js"></script>
<script type="text/javascript" charset="utf-8" src="cordova-2.7.0.js"></script>
<script src="jquery.mobile/jquery.mobile-1.0rc2.js"></script>
<script type="text/javascript" charset="utf-8" src="assests/www/main.js"></script>
</head>
<body onload="init()">
<div id="loginPage" data-role="page">
<div data-role="header">
<h1>Welcome to Phonegap</h1>
</div>
<div data-role="content">
<form id="loginForm">
<div data-role="fieldcontain" class="ui-hide-label">
<label for="username">Username:</label>
<input type="text" name="username" id="username" value="" placeholder="Username" />
</div>
<div data-role="fieldcontain" class="ui-hide-label">
<label for="password">Password:</label>
<input type="password" name="password" id="password" value="" placeholder="Password" />
</div>
<input type="submit" value="Login" id="submitButton">
</form>
</div>
<script>
$("#loginPage").live("pageinit", function(e) {
checkPreAuth();
});
</script>
</body>
</html>
这也是 main.js 文件代码。我只希望特定的登录 ID 有效。
function init() {
document.addEventListener("deviceready", deviceReady, true);
delete init;
}
function checkPreAuth() {
console.log("checkPreAuth");
var form = $("#loginForm");
if(window.localStorage["username"] != undefined && window.localStorage["password"] != undefined) {
$("#username", form).val(window.localStorage["username"]);
$("#password", form).val(window.localStorage["password"]);
navigator.notification.alert("You entered a username and password");
handleLogin();
}
}
function handleLogin() {
var form = $("#loginForm");
//disable the button so we can't resubmit while we wait
$("#submitButton",form).attr("disabled","disabled");
var u = $("#username", form).val();
var p = $("#password", form).val();
var str1 = "burden123";
var str2 = "game1234";
var n1 = str1.localeCompare(u);
var n2 = str1.localeCompare(p);
if(u != '' && p!= '') {
$.post("http://www.coldfusionjedi.com/demos/2011/nov/10/service.cfc? method=login&returnformat=json", {username:u,password:p}, function(res) {
if(n1==0 && n2==0) {
$.mobile.changePage("some.html");
} else {
navigator.notification.alert("Your login failed", function() {});
}
$("#submitButton").removeAttr("disabled");
},"json");
} else {
navigator.notification.alert("You must enter a username and password", function() {});
$("#submitButton").removeAttr("disabled");
}
return false;
}
function deviceReady() {
console.log("deviceReady");
$("#loginPage").on("pageinit",function() {
console.log("pageinit run");
$("#loginForm").on("submit",handleLogin);
checkPreAuth();
});
$.mobile.changePage("#loginPage");
}
最佳答案
<script type="text/javascript" charset="utf-8" src="assests/www/main.js"></script>
代码中的这一行应更改为
<script type="text/javascript" charset="utf-8" src="main.js"></script>
因为主要js位于index.html页面的同一文件夹中。
关于javascript - 如何解决“未定义的错误 "Uncaught TypeError: Cannot call method 'changePage”，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/23904034/