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我如何使用jQuery Mobile使用捏放大/縮小?

[英]How i can use pinch zoom in /out using jquery mobile?

我正在使用Phonegap,我想在使用jquery mobile時使用放大/縮小選項。 我已經嘗試過jgesture和Hammer插件來縮放它。 我在這段代碼中錯了嗎?

<html>
    <head>
        <meta charset="utf-8" />
        <meta name="format-detection" content="telephone=no" />
        <!-- WARNING: for iOS 7, remove the width=device-width and height=device-height attributes. See https://issues.apache.org/jira/browse/CB-4323 -->
        <meta name="viewport" content="user-scalable=yes, 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/index.css" />
        <link rel="stylesheet" type="text/css" href="css/jquery.mobile-1.4.1.min.css" />
        <title>Hello World</title>
        <script type="text/javascript" src="js/jquery-1.9.1.min.js"></script>
        <script>
                 $(document).bind("mobileinit", function(){
      $.mobile.metaViewportContent = "width=device-width, minimum-scale=1, maximum-scale=2";
});
        </script>
        <script type="text/javascript" src="js/jquery.mobile-1.4.1.min.js"></script>
    </head>
    <body>
        <div class="app">
            <h1>PhoneGap</h1>
            <div id="deviceready" class="blink">
                <p class="event listening">Connecting to Device</p>
                <p class="event received">Device is Ready</p>
            </div>
        </div>
        <script type="text/javascript" src="phonegap.js"></script>
        <script type="text/javascript" src="js/index.js"></script>
        <script type="text/javascript">
            app.initialize();

        </script>
    </body>
</html>

使用Hammer.js捏,捏,捏

這是他們在github上的API的事件文檔:

https://github.com/EightMedia/hammer.js/wiki/Getting-Started

另外,您實際上已經使其無法由用戶擴展...:

initial-scale=1, maximum-scale=1, minimum-scale=1,

這行:

<meta name="viewport" content="user-scalable=yes, initial-scale=1, maximum-scale=1,
minimum-scale=1, width=device-width, height=device-height, target-densitydpi=device-dpi"/>

然后使用jquery再次設置它:

$.mobile.metaViewportContent = "width=device-width, minimum-scale=1, maximum-scale=2";

不好,請在這里閱讀: https : //developer.mozilla.org/en-US/docs/Web/HTML/Element/meta

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