一起使用JQuery Mobile和Phonegap的正确方法(截止日期)是什么?
两个框架都需要在可以使用之前加载。在使用它们之前,我怎么能确定它们都已加载?
答案 0 :(得分:173)
您可以使用JQuery的延迟功能。
var deviceReadyDeferred = $.Deferred();
var jqmReadyDeferred = $.Deferred();
document.addEventListener("deviceReady", deviceReady, false);
function deviceReady() {
deviceReadyDeferred.resolve();
}
$(document).one("mobileinit", function () {
jqmReadyDeferred.resolve();
});
$.when(deviceReadyDeferred, jqmReadyDeferred).then(doWhenBothFrameworksLoaded);
function doWhenBothFrameworksLoaded() {
// TBD
}
答案 1 :(得分:17)
根据以上示例
,以下是对我有用的方法<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="format-detection" content="telephone=no" />
<meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, height=device-height, target-densitydpi=device-dpi" />
<link rel="stylesheet" type="text/css" href="css/bootstrap.css" />
<title>InforMEA</title>
</head>
<body>
<script type="text/javascript" src="js/jquery-1.8.3.js"></script>
<script type="text/javascript">
var dd = $.Deferred();
var jqd = $.Deferred();
$.when(dd, jqd).done(doInit);
$(document).bind('mobileinit', function () {
jqd.resolve();
});
</script>
<script type="text/javascript" src="js/jquery.mobile-1.2.0.js"></script>
<script type="text/javascript" src="cordova-2.2.0.js"></script>
<script type="text/javascript">
document.addEventListener('deviceready', deviceReady, false);
function deviceReady() {
dd.resolve();
}
function doInit() {
alert('Ready');
}
</script>
</body>
</html>
答案 2 :(得分:7)
为了使用phonegap和jquery mobile,你需要像这样使用它
<head>
<title>Index Page</title>
<!-- Adding viewport -->
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, user-scalable=no">
<!-- Adding jQuery scripts -->
<script type="text/javascript" src="jquery/jquery-1.7.1.min.js"></script>
<!-- Since jQuery Mobile relies on jQuery core's $.ajax() functionality,
$.support.cors & $.mobile.allowCrossDomainPages must be set to true to tell
$.ajax to load cross-domain pages. -->
<script type="text/javascript">
$(document).bind("mobileinit", function() {
$.support.cors = true;
$.mobile.allowCrossDomainPages = true;
});
</script>
<!-- Adding Phonegap scripts -->
<script type="text/javascript" charset="utf-8"
src="cordova/cordova-1.8.0.js"></script>
<!-- Adding jQuery mobile scripts & CSS -->
<link rel="stylesheet" href="jquerymobile/jquery.mobile-1.1.0.min.css" />
<script type="text/javascript"
src="jquerymobile/jquery.mobile-1.1.0.min.js"></script>
</head>
<script type="text/javascript">
// Listener that will invoke the onDeviceReady() function as soon as phonegap has loaded properly
document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady() {
navigator.splashscreen.hide();
document.addEventListener("backbutton", onBackClickEvent, false); // Adding the back button listener
}
</script>
<body>
<div data-role="page" id="something" data-ajax="false">
<script type="text/javascript">
$("#something").on("pageinit", function(e) {
});
$("#something").on("pageshow", function(e) {
});
$("#something").on("pagebeforeshow", function(e) {
});
</script>
<div data-role="header">
</div>
<div data-role="content">
</div>
</div>
</body>
答案 3 :(得分:6)
正如许多人建议使用延迟是一个好的选择,只要你不关心deviceready
和mobileinit
发生的顺序。但在我的情况下,我需要一些{{1首次加载应用程序时的事件pageshow
和扩展名mobileinit
/ pageshow
/ etc事件都在pagebeforeshow
完成之前触发,所以我无法绑定到他们正确使用延期他们。这种竞争条件不是一件好事。
我需要做的是确保在'deviceready
'被解雇之后才发生'mobileinit'。因为deviceready
在您加载JQM时会立即触发,所以我选择在mobileinit
完成之后使用jQuery.getScript
加载它。
deviceready
我隐藏正文的原因是,在加载jquery.mobile之前,此方法的副作用是原始HTML文档可见性的半秒。在这种情况下,隐藏它需要额外半秒的空白空间来查看无样式的文档。
答案 4 :(得分:2)
我认为没有必要使用延迟功能。 (对于较新版本的phonegap,这可能不是必需的吗?)我在index.html文件的头部有这个,一切正常。我认为包含jquery,phonegap和jquery mobile的顺序非常重要。
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="format-detection" content="telephone=no" />
<meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, height=device-height, target-densitydpi=device-dpi" />
<!-- Adding jQuery -->
<script type="text/javascript" src="js/jquery-1.9.1.min.js"></script>
<!-- Add Phonegap scripts -->
<script type="text/javascript" src="phonegap.js"></script>
<!-- Add jQuery mobile -->
<link rel="stylesheet" href="css/jquery.mobile-1.3.2.css" />
<script type="text/javascript" src="js/jquery.mobile-1.3.2.min.js"></script>
<title>MY TITLE</title>
</head>
答案 5 :(得分:1)
这对我有用。基于dhaval,当我学习使用sqlite
时这个示例<!DOCTYPE html>
<html>
<head>
<title>Cordova Sqlite+Jquery</title>
<script type="text/javascript" charset="utf-8" src="js/jquery-1.8.3.min.js"></script>
<script type="text/javascript" charset="utf-8" src="cordova-2.2.0.js"></script>
<script type="text/javascript" charset="utf-8">`
// Call onDeviceReady when Cordova is loaded.
//
// At this point, the document has loaded but cordova-1.8.0.js has not.
// When Cordova is loaded and talking with the native device,
// it will call the event `deviceready`.
//
function onLoad() {
document.addEventListener("deviceready", onDeviceReady, false);
}
// Populate the database
//
function populateDB(tx) {
tx.executeSql('DROP TABLE IF EXISTS DEMO');
tx.executeSql('CREATE TABLE IF NOT EXISTS DEMO (id unique, data)');
tx.executeSql('INSERT INTO DEMO (id, data) VALUES (1, "First row")');
tx.executeSql('INSERT INTO DEMO (id, data) VALUES (2, "Second row")');
}
// Query the database
//
function queryDB(tx) {
tx.executeSql('SELECT * FROM DEMO', [], querySuccess, errorCB);
}
// Query the success callback
//
function querySuccess(tx, results) {
var len = results.rows.length;
//console.log("DEMO table: " + len + " rows found.");
$('#result').html("DEMO table: " + len + " rows found.");
var listval = '';
for (var i=0; i<len; i++){
//console.log("Row = " + i + " ID = " + results.rows.item(i).id + " Data = " + results.rows.item(i).data);
listval += '<li>'+ results.rows.item(i).data + '[' + results.rows.item(i).id + '] </li>';
}
$('#listItem').html(listval);
}
// Transaction error callback
//
function errorCB(err) {
console.log("Error processing SQL: "+err.code);
}
// Transaction success callback
//
function successCB() {
var db = window.openDatabase("Database", "1.0", "PhoneGap Demo", 200000);
db.transaction(queryDB, errorCB);
}
// Cordova is loaded and it is now safe to make calls Cordova methods
//
function onDeviceReady() {
// Now safe to use the Cordova API
//alert('ready');
var db = window.openDatabase("Database", "1.0", "PhoneGap Demo", 200000);
db.transaction(populateDB, errorCB, successCB);
//$('#result').html('hello');
}
</script>
</head>
<body onload="onLoad()">
<div>result:</div><div id="result"></div>
<ul id="listItem">
</ul>
</body>
</html>
答案 6 :(得分:0)
为了建立@ Jeffrey的答案,我找到了一种更清晰的方法来隐藏HTML标记,直到JQM完成处理页面并呈现第一个Page元素,因为我注意到之前1/2秒的裸标记闪烁JQM渲染。
你只需要用css隐藏所有标记...... JQM的PageShow()将切换你的可见性。
//snip
<style type="text/css">
.hide {
display:none;
}
</style>
//snip - now the markup notice the hide class
<div id="page1" data-role="page" class="hide">
//all your regular JQM / html form markup
</div>
//snip -- down to the end of /body
<script src="cordova-2.2.0.js"></script>
<script src="js/jquery-1.8.2.min.js"></script>
<script>
document.addEventListener(
'deviceready',
function () {
$(document).one("mobileinit", function () {
//any JQM init methods
});
$.getScript('js/jquery.mobile-1.2.0.min.js');
},
false);
</script>
答案 7 :(得分:0)
以下为PG 2.3和JQM 1.2工作,包括。 Facebook Connect插件:
<head>
<script src="./js/jquery-1.8.2.min.js"></script>
<script>
$.ajaxSetup({
dataType : 'html'
});
var dd = $.Deferred();
var jqd = $.Deferred();
$.when(dd, jqd).done(function() {
FB.init({ appId: auth.fbId, nativeInterface: CDV.FB, useCachedDialogs: false });
});
$(document).bind('mobileinit', function () {
jqd.resolve();
});
</script>
<script src="./js/jquery.mobile-1.2.0.min.js"></script>
<script>
$.mobile.loader.prototype.options.text = "loading";
$.mobile.loader.prototype.options.textVisible = true;
$.mobile.loader.prototype.options.theme = "a";
$.mobile.loader.prototype.options.html = "";
$.mobile.ajaxEnabled = false;
$.mobile.allowCrossDomainPages = true;
$.support.cors = true;
$('[data-role=page]').live('pagecreate', function(event) {
tpl.renderReplace('login', {}, '#content-inner', function() {
auth.init();
});
});
</script>
<script src="./js/cordova-2.3.0.js"></script>
<script src="./js/cdv-plugin-fb-connect.js"></script>
<script src="./js/facebook_js_sdk.js"></script>
<!--some more scripts -->
<script>
document.addEventListener('deviceready', function() {
dd.resolve();
}, false);
</script>
<head>
答案 8 :(得分:-1)
加载PhoneGap与加载jQuery略有不同。 jQuery更像是一个实用程序库,所以你可以包含它,它可以立即使用。另一方面,PhoneGap需要本机代码支持才能进行正确的初始化,因此在页面中包含它后不能立即使用。
Phonegap建议注册并等待deviceready
事件执行任何本机特定代码。
<!DOCTYPE html>
<html>
<head>
<title>PhoneGap Example</title>
<script type="text/javascript" charset="utf-8" src="lib/jquery.min.js"></script>
<script type="text/javascript">
// jquery code here
</script>
<script type="text/javascript" charset="utf-8" src="lib/android/cordova-1.7.0.js"></script>
<script type="text/javascript" charset="utf-8">
function onLoad(){
document.addEventListener("deviceready", onDeviceReady, false);
}
// Cordova is ready
function onDeviceReady() {
// write code related to phonegap here
}
</script>
</head>
<body onload="onLoad()">
<h1>Phonegap Example</h1>
</body>
</html>
有关详情,请查看doc