我创建了一个Android应用程序与PhoneGap的。 我希望能有一个固定的股利在一个页面，而在另一个页面放大项。
使用jQuery移动1.2.0，jQuery的1.8.2，2.0.0的PhoneGap和Android 2.2。
我的代码是：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>My Phonegap Application</title>
<link rel="stylesheet" href="./lib/jquery.mobile-1.2.0.css" />
<script src="./lib/jquery-1.8.2.js"></script>
<script src="./lib/jquery.mobile-1.2.0.js"></script>
<script src="./lib/cordova-2.0.0.js" type="text/javascript"></script>
<meta id="viewport" name="viewport" content="initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, width=device-width, height=device-height, user-scalable=no, target-densitydpi=device-dpi" />
<script>
function change_page(){
$("#viewport").attr("content", "initial-scale=1, maximum-scale=2, minimum-scale=0.5, width=device-width, height=device-height, user-scalable=yes, target-densitydpi=device-dpi");
$.mobile.changePage( "#pageImage", { transition: "slideup"} );
}
</script>
<style>
.fixe {
position: fixed;
bottom: 0;
z-index: 5000;
margin: 0;
padding: 0;
height: 50px;
width: 100%;
}
img {
height: 100%;
width: 100%;
}
</style>
</head>
<body>
<div data-role="page" id="pageHome">
<div data-role="content" data-theme="c">
<button id="switchPage" onClick='change_page();'>switchpage</button>
<p>
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Quanta autem vis amicitiae sit, ex hoc intellegi maxime potest, quod ex infinita societate generis humani, quam conciliavit ipsa natura, ita contracta res est et adducta in angustum ut omnis caritas aut inter duos aut inter paucos iungeretur.
Horum adventum praedocti speculationibus fidis rectores militum tessera data sollemni armatos omnes celeri eduxere procursu et agiliter praeterito Calycadni fluminis ponte, cuius undarum magnitudo murorum adluit turres, in speciem locavere pugnandi. neque tamen exiluit quisquam nec permissus est congredi. formidabatur enim flagrans vesania manus et superior numero et ruitura sine respectu salutis in ferrum.
Ergo ego senator inimicus, si ita vultis, homini, amicus esse, sicut semper fui, rei publicae debeo. Quid? si ipsas inimicitias, depono rei publicae causa, quis me tandem iure reprehendet, praesertim cum ego omnium meorum consiliorum atque factorum exempla semper ex summorum hominum consiliis atque factis mihi censuerim petenda.
Dum haec in oriente aguntur, Arelate hiemem agens Constantius post theatralis ludos atque circenses ambitioso editos apparatu diem sextum idus Octobres, qui imperii eius annum tricensimum terminabat, insolentiae pondera gravius librans, siquid dubium deferebatur aut falsum, pro liquido accipiens et conperto, inter alia excarnificatum Gerontium Magnentianae comitem partis exulari maerore multavit.
</p>
<div class="fixe">
<img id="fixedImage" src="./res/myfixedimg.png">
</div>
</div>
</div>
<div data-role="page" id="pageImage">
<div data-role="content" data-theme="a">
<img id="my_img" src="./res/myimg.png" width="671" height="811">
</div>
</div>
</body>
</html>
有了这个代码，固定股利是工作，但它不可能在第二页放大。 正如你所看到的，我改变了Javascript代码视窗的用户可扩展的性能，但它似乎并没有生效。
如果删除“用户可升级=没有”在视口中元标记，你可以在第二页放大，但股利不固定。
另一个测试
我也试图摆脱掉用户可扩展的元标记。 在第一页，我说：
$("#viewport").attr("content", "user-scalable=no, initial-scale=1, maximum-scale=2, minimum-scale=0.5, width=device-width, height=device-height, target-densitydpi=device-dpi");
console.log($("#viewport").attr('content'));
在change_page功能：
$("#viewport").attr("content", "user-scalable=yes, initial-scale=1, maximum-scale=2, minimum-scale=0.5, width=device-width, height=device-height, target-densitydpi=device-dpi");
console.log($("#viewport").attr('content'));
在控制台中视口的参数确定，但即使用户可扩展= YES，它的作用就好像用户可扩展性=无。
结论
我希望能够在第二页中进行放大并在第一固定股利。 是否有人知道如何做到这一点？
感谢您的帮助提前。
![Prime Path[POJ3126] [SPFA/BFS]](https://oscimg.oschina.net/oscnet/e1200f32e838bf1d387d671dc8e6894c37d.jpg "Prime Path[POJ3126] [SPFA/BFS]")
