出现异常 'NSInvalidArgumentException'，原因：'-[__NSCFString stringValue]

Question

我已经准备好通过 Google 尝试多种解决方案，但我遇到了两种错误，解决方案我得到了这个

2015-08-06 18:52:33.110 FastFast[2824:110493] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString stringValue]: unrecognized selector sent to instance 0x7f89c1eb7e50' * First throw call stack:

但是当我没有应用任何解决方案时，我得到了这个

2015-08-06 19:09:24.473 FastFast[2933:117451] -[__NSCFNumber length]: unrecognized selector sent to instance 0xb000000000000003 2015-08-06 19:09:24.480 FastFast[2933:117451] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFNumber length]: unrecognized selector sent to instance 0xb000000000000003' * First throw call stack:

我从 1 天开始就在弄乱这段代码，但没能找到真正的问题。但是当我对这个函数设置静态限制时，一切都很好。

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
NSLog(@"Number Of Row  %lu",_AddressArray.count);
return 4; // when set static limit here like this all works fine 
return [self.temporaryAddArray count];}

下面link属于我的接口文件和实现文件

file.h https://drive.google.com/file/d/0B85GTvLEHASFVDEwajA1YXp1aUE/view?usp=sharing

file.m https://drive.google.com/file/d/0B85GTvLEHASFNEhzUnN1U25qaEk/view?usp=sharing

我们将不胜感激。

Answer 1

恐怕您的价值观不是您期望的那样。看起来 "temporaryAddArray" 是 NSNumber 不是数组，其他东西不是 NSNumber 但它是 NSString。在使用 objectForKey: 从 JSON 分配值之前，通过显示检查它们的类型：

NSLog(@"%@", [variable class]);

并确保他们在您的 JSON 中输入的内容符合预期，因为他们中的一些人没有。如果您粘贴从 API 获得的 JSON 会有所帮助，然后我可以准确指出问题。

Answer 2

您需要确保您正在初始化 NSMutableArray

只需添加

self.temporaryAddArray = [[NSMutableArray alloc]init];

到

-(void)viewDidLoad;

应该可以解决您的问题。

Answer 3

self.temporaryAddArray = [tempAddress objectForKey:@"Android"];

问题来了...

首先检查 [tempAddress objectForKey:@"Android"] 是否包含数组值从你的错误我认为 [tempAddress objectForKey:@"Android"] return 一个字符串值这就是为什么这个抛出错误..

确保 [tempAddress objectForKey:@"Android"] return 加载表视图后的 NaArray 值。

这样做会解决您的问题。

[AFRequestmanager POST:tempUrlAddress parameters:urlParams success:^(AFHTTPRequestOperation *operation, id responseObject) {

         NSLog(@"Responce Parameter %@",responseObject);

        NSDictionary *tempAddress= (NSDictionary *)responseObject;

        [self.activityIndicatorView stopAnimating];

id android = [tempAddress objectForKey:@"Android"];
if (if([android isKindOfClass:[NSArray class]]){
    //Is array
       self.temporaryAddArray =[android mutableCopy];
        [self.tableview reloadData];
}

    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

         NSLog(@"Errorsss parameters %@",error);
    }];

Answer 4

最终在深入挖掘之后，在您的回答的帮助下，我将问题出在哪里。

Json responce is here {"Android":[{"recip_code":"94541824","recip_fname":"","recip_lname":"","recip_add1":"hillsrtreat main road h.no. 3535","recip_img":"","recip_add2":"","recip_stateid":"new state","recip_cityid":"Dublin","result":"Success"},{"recip_code":"53843299","recip_fname":"","recip_lname":"","recip_add1":"rz x yes RR HDTV j deed ju","recip_img":"","recip_add2":"","recip_stateid":"Westmeath","recip_cityid":"Dublin","result":"Success"},{"recip_code":"11493834","recip_fname":"","recip_lname":"","recip_add1":"newdgbfh","recip_img":"","recip_add2":"","recip_stateid":"Westmeath","recip_cityid":"bobo2","result":"Success"},{"recip_code":"29376578","recip_fname":"","recip_lname":"","recip_add1":"edggvfhkyfv","recip_img":"","recip_add2":"","recip_stateid":"Dublin","recip_cityid":"bobo2","result":"Success"},{"recip_code":"22549638","recip_fname":"","recip_lname":"","recip_add1":"This ios address 34 street","recip_img":"","recip_add2":"","recip_stateid":0,"recip_cityid":0,"result":"Success"}]}

Image Link of json analysis

In given image there is a visualization of error in array, in 1st selection it shows an STRING and in 2nd selection there is integer value which is the reason of that brutal exception

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = @"addAddress";
AddressTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier     forIndexPath:indexPath];
@try {


    NSDictionary *currentAddress = [self.AddressArray  objectAtIndex:indexPath.row];
    NSString *addTitle= [NSString stringWithFormat:@"%@%@",[currentAddress objectForKey:@"recip_add1"],[currentAddress objectForKey:@"recip_add2"]];

    cell.lblAddress.text =addTitle;
    cell.lblCity.text=[currentAddress objectForKey:@"recip_cityid"];
    cell.lblRecipentCode.text=[currentAddress objectForKey:@"recip_code"];
// cell.lblState.text=[NSString stringWithFormat:@"%@",[[currentAddress objectForKey:@"recip_stateid"] stringValue]];
    cell.lblState.text=[currentAddress objectForKey:@"recip_stateid"];

}
@catch (NSException *exception) {
    NSLog(@" Exception hit %@",exception);
}



return cell;
}

一切正常，直到 (NSDictionary *currentAddress) return 字符串值，但在 cell.lblCity.text 与 Integr 值交互的位置显示异常。

thanks guys to give your important time and answer :)

出现异常 'NSInvalidArgumentException'，原因：'-[__NSCFString stringValue]

getting exception 'NSInvalidArgumentException', reason: '-[__NSCFString stringValue]

tableview

viewcontroller

ios

afnetworking