Question

我正在使用Appcelerator Titanium，下面的代码在iPhone上工作正常，但在Android上没有，我无法找到原因。有人可以帮忙吗？

失败并出现以下错误：

TypeError：无法从null

读取属性“DocumentElement”

BEGIN CODE

var xhr = Titanium.Network.createHTTPClient();

xhr.onload = function() {
   var xmlDoc = Ti.XML.parseString(this.responseText).documentElement;
   var xlinestatus = xmlDoc.getElementsByTagName('LineStatus');

   for (i = 0; i < xlinestatus.length; i++) {
     var theItem = xlinestatus.item(i);
     var newname = theItem.getElementsByTagName("Line").item(0).getAttribute("Name");
     var desc = theItem.getElementsByTagName("Status").item(0).getAttribute("Description");
     var active = theItem.getElementsByTagName("Status").item(0).getAttribute("IsActive");
     Ti.API.info(" Line: " + newname + " Status: " + desc + ", Active: " + active);
   }

};

// open the client
xhr.open('GET', 'http://cloud.tfl.gov.uk/TrackerNet/LineStatus');

// send the data
xhr.send({});

END CODE

Answer 1

这就是我所做的并且有效

请更改第Ti.XML.parseString(this.responseText).documentElement;行

到

this.responseXML.documentElement它应该有效。这是它的输出。我没有在OS X上测试它，但它应该可以工作。

[INFO] [157,5791] Line: Bakerloo Status: Service Closed, Active: true
[INFO] [8,5799] Line: Central Status: Service Closed, Active: true
[INFO] [27,5826] Line: Circle Status: Service Closed, Active: true
[INFO] [7,5833] Line: District Status: Service Closed, Active: true
[INFO] [16,5849] Line: Hammersmith and City Status: Service Closed, Active: true
[INFO] [11,5860] Line: Jubilee Status: Service Closed, Active: true
[INFO] [12,5872] Line: Metropolitan Status: Service Closed, Active: true
[INFO] [12,5884] Line: Northern Status: Service Closed, Active: true
[INFO] [14,5898] Line: Piccadilly Status: Service Closed, Active: true
[INFO] [14,5912] Line: Victoria Status: Service Closed, Active: true
[INFO] [14,5926] Line: Waterloo and City Status: Service Closed, Active: true

为什么这个Appcelerator代码在iPhone上运行而在Android上运行？

1 个答案: