如何将phonegap device.platform值分配给变量？

Question

I'd like to assign the value in device.platform to a variable so I can check it later in my program. 我想将device.platform中的值赋给变量，以便稍后在我的程序中检查它。 For example, if the app is running on a BlackBerry I might want to have a custom message appear. 例如，如果应用程序在BlackBerry上运行，我可能希望显示自定义消息。

I used the "element" example found elsewhere to make sure things were working properly (and it does). 我使用了其他地方发现的“元素”示例来确保事情正常运行（并且确实如此）。 But I run into problems when I try assigning just the "device.platform" value to devicePlatform. 但是当我尝试仅将“device.platform”值分配给devicePlatform时，我遇到了问题。

I've been fighting with this for an hour, I must be missing something fairly basic. 我一直在与这个战斗一个小时，我必须遗漏一些相当基本的东西。 Can someone please show me what I'm doing wrong? 有人可以告诉我我做错了什么吗？

Thanks Rob 谢谢Rob

<html>
  <head>
    <title>PhoneGap</title>
    <meta name="viewport" content="width=device-width">
    <script type="text/javascript" charset="utf-8" src="cordova-1.9.0.js"></script>
    <script language="JavaScript" type="text/javascript">
      // wait for PhoneGap to load
      document.addEventListener("deviceready", onDeviceReady, false);
      function onDeviceReady() {
        var element = document.getElementById('deviceProperties');
        element.innerHTML = 'Device Name: '     + device.name     + '<br />' + 
                            'Device Cordova: '  + device.cordova + '<br />' + 
                            'Device Platform: ' + device.platform + '<br />' + 
                            'Device UUID: '     + device.uuid     + '<br />' + 
                            'Device Version: '  + device.version  + '<br />';
      //
    }
    </script>    

  </head>
  <body>
    <h1>Hello PhoneGap v1.9.0</h1>

    <script>
      var devicePlatform = device.platform;
      document.write("Platform: "+devicePlatform+"<br>");    
    </script>
    <br>
    <p id="deviceProperties">Loading device properties...</p>

  </body>
</html>

Answer 1

Try putting 试试看

var devicePlatform = device.platform;
document.write("Platform: "+devicePlatform+"<br>");

into the function onDeviceReady() 进入函数onDeviceReady（）

This should resolve the issue. 这应该解决问题。

Additionally you will probably want to define a globally scoped variable, such as 'platform' and then assign the device.platform to that variable in the function onDeviceReady(). 此外，您可能希望定义一个全局范围的变量，例如'platform'，然后将device.platform分配给函数onDeviceReady（）中的该变量。

Example: 例：

var platform = null;
document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady() {
  platform = device.platform;
  alert(platform);
}

UPDATE: 更新：

I think this is closer to what you are looking for 我认为这更接近你所寻找的

<html>
  <head>
    <title>PhoneGap</title>
    <meta name="viewport" content="width=device-width">
    <script type="text/javascript" charset="utf-8" src="cordova-1.9.0.js"></script>
    <script language="JavaScript" type="text/javascript">
      // wait for PhoneGap to load
      document.addEventListener("deviceready", onDeviceReady, false);
      function onDeviceReady() {
        var element = document.getElementById('platformarea');
        element.innerHTML = device.platform;
      //
    }
    </script>    

  </head>
  <body>
    <h1>Hello PhoneGap v1.9.0</h1>

    <p id="platformarea"></p>

  </body>
</html>

Answer 2

Insted of using device.platform , you can use cordova.platformId . 如果使用device.platform ，可以使用cordova.platformId 。 I'm sure it will help 我相信它会有所帮助

如何将phonegap device.platform值分配给变量？

问题描述

2 个解决方案

解决方案1
2 已采纳 2012-11-01 22:47:13

解决方案2
2 2014-12-03 12:34:27

如何将phonegap device.platform值分配给变量？

问题描述

2 个解决方案

解决方案1 2 已采纳 2012-11-01 22:47:13

解决方案2 2 2014-12-03 12:34:27

解决方案1
2 已采纳 2012-11-01 22:47:13

解决方案2
2 2014-12-03 12:34:27