iOS JSON在实际设备上遇到麻烦 [英] iOS JSON troubles on actual device

问题描述

由于某些原因，这适用于运行iOS 6+的模拟器，但不适用于运行iOS 5+的实际iPad。当我在iPad上运行它的应用程序时，它会给我这个错误（和其他人）。

 解析JSON时出错：Error Domain = NSCocoaErrorDomain Code = 3840无法完成该操作。（Cocoa错误3840.）（围绕字符316的错误对象）UserInfo = 0x650260 {NSDebugDescription =字符316周围形成错误的对象} 
 
使用的JSON是这个（从Javascript传递）：{functionname：setItem，args：{key：http：// localhost：3000 / assets / tasks / task.js value：function Task（）{this.steps = new Array，this.completed =！1，this.loaded =！1，this.stepCount = -1，this.points = 0，this.newpoints = 0，this .prevpoints = 0，this.circleGesture =！1，this.customGesture =！1，this.subtaskCounter = 0，this.className = //}（继续一段时间，因为它是一个js脚本）}} 
 

在iOS中将json字符串转换成json的代码

  if（[[urlStr lowercaseString] hasPrefix：protocolPrefix]）
 {
 //从URL中剥离协议。我们将获得调用本地方法的输入
 urlStr = [urlStr substringFromIndex：protocolPrefix.length]; 
 
 //解码url字符串
 urlStr = [urlStr stringByReplacingPercentEscapesUsingEncoding：NSUTF8StringEncoding]; 
 
 NSError * jsonError; 
 
 //在URL中解析JSON输入
 NSDictionary * callInfo = [NSJSONSerialization 
 JSONObjectWithData：[urlStr dataUsingEncoding：NSUTF8StringEncoding] 
选项：0 
错误：& jsonError] 
 
 //检查解析JSON输入是否有错误
 if（jsonError！= nil）
 {
 NSLog（@解析JSON时出错：％@ ，[jsonError debugDescription]）; 
 NSLog（@％@，urlStr）; 
 return NO; 
} 
 
 .... 
} 
  

CoffeeScript

  callNativeFunction：（func，args，callback） - > 
 if global_phone_os =='ios'
 url =js2native：//
 callInfo = {} 
 callInfo.functionname = func 
如果args？ 
 callInfo.args = args 
如果回调？ 
 cid = Math.random（）。toString（36）.substr（2,10）
 @callback [cid] = callback 
 callInfo.callback_id = cid 
 url + JSON.stringify callInfo 
 @openCustomURLinIFrame url 
  

任何想法如何让这两个仿真器和实际设备？

UPDATE

。如果我这样做，这将被标记为答案。我必须在coffeescript中执行以下操作：

  url + = encodeURIComponent JSON.stringify callInfo 
  
 
 
 
这有所作为。
 
 
 
谢谢。
解决方案
这解决了问题。
  url + = encodeURIComponent JSON.stringify callInfo 
  
 
For some reason, this works on the emulator running iOS 6+ but not on an actual iPad running iOS 5+. When I run it my app on the iPad it gives me this error (and others).
Error parsing JSON: Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (Badly formed object around character 316.) UserInfo=0x650260 {NSDebugDescription=Badly formed object around character 316.}

JSON used is this (which is passed from Javascript): {"functionname":"setItem","args":{"key":"http://localhost:3000/assets/tasks/task.js","value":"function Task(){this.steps=new Array,this.completed=!1,this.loaded=!1,this.stepCount=-1,this.points=0,this.newpoints=0,this.prevpoints=0,this.circleGesture=!1,this.customGesture=!1,this.subtaskCounter=0,this.className=/"/"}(goes on for a while since it is a js script)"}}
Code to convert json string to json in iOS
if ([[urlStr lowercaseString] hasPrefix:protocolPrefix])
{
    //strip protocol from the URL. We will get input to call a native method
    urlStr = [urlStr substringFromIndex:protocolPrefix.length];

    //Decode the url string
    urlStr = [urlStr stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

    NSError *jsonError;

    //parse JSON input in the URL
    NSDictionary *callInfo = [NSJSONSerialization
                              JSONObjectWithData:[urlStr dataUsingEncoding:NSUTF8StringEncoding]
                              options:0
                              error:&jsonError];

    //check if there was error in parsing JSON input
    if (jsonError != nil)
    {
        NSLog(@"Error parsing JSON: %@",[jsonError debugDescription]);
        NSLog(@"%@", urlStr);
        return NO;
    } 

    ....
}
CoffeeScript
callNativeFunction: (func, args, callback)->
  if global_phone_os == 'ios'
    url = "js2native://"
    callInfo = {}
    callInfo.functionname = func
    if args?
      callInfo.args = args
    if callback?
      cid = Math.random().toString(36).substr(2,10)
      @callback[cid] = callback
      callInfo.callback_id = cid
    url += JSON.stringify callInfo
    @openCustomURLinIFrame url
Any ideas how to get this to work on both emulator and actual device?

UPDATE

So far I think I fixed it. If I did, this will be marked as the answer. I had to do the following in the coffeescript:
url += encodeURIComponent JSON.stringify callInfo
That made a difference.

Thanks.
解决方案
This did fix the issue.
url += encodeURIComponent JSON.stringify callInfo


                        
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