为什么我丢失了我的NSOrderedSet信息来调用另一个函数

时间:2014-11-30 20:42:12

标签: objective-c xcode6 uipickerview nsorderedset

为什么NSOrderedSet信息被删除或信息有时会消失?

在应用程序中我得到一个包含JSON格式数据的字符串,所以我使用NSOrderedSet根据我从密钥中收到的信息对数据进行排序,如方法" finishedReceivingData"但是当我拿NSOrderedSet填充列表PickerVied时,存储在NSOrderedSet中的信息清除了垃圾或其他信息。

感谢能够告诉我为什么在调用其他元素中的NSOrderedSet时删除信息的原因,例如当我调用pickerView" numberOfRowsInComponent"

的方法时

·H

#import <UIKit/UIKit.h>
#import "RestConnectionDelegate.h"
#import "ViewController.h"

@class RestConnection;

@interface attentionCenterViewController : UIViewController<RestConnectionDelegate,UIPickerViewDelegate,UIPickerViewDataSource>{
    @private RestConnection *restConnection;
    IBOutlet UIPickerView *pvList;

    NSDictionary *json;
    NSData *encodData;
}
- (IBAction)cbDepto:(id)sender;
- (IBAction)cbCity:(id)sender;
- (IBAction)cbAttent:(id)sender;
- (IBAction)cbFind:(id)sender;
 @property (strong, nonatomic) NSOrderedSet *deptoArray;

@end

的.m

#import "attentionCenterViewController.h"
#import "RestConnection.h"

@interface attentionCenterViewController (){
    NSString *service;
}

@end

@implementation attentionCenterViewController

#define baseURL @"http://another url"
#pragma mark Setup and Teardown Methods

- (void)viewDidLoad {
    [super viewDidLoad];
    restConnection = [RestConnection new];
    restConnection.baseURLString = baseURL;
    restConnection.delegate = self;
    viewList.hidden=true;
}

- (void)dealloc {
    [restConnection release];
    [txtDepto release];
    [txtCity release];
    [txtAttent release];
    [viewList release];
    [pvList release];
    [super dealloc];
}


#pragma mark RestConnectionDelegate

- (void)finishedReceivingData:(NSData *)data
{
    encodData = [[restConnection stringData] dataUsingEncoding:NSUTF8StringEncoding];
    json = [NSJSONSerialization JSONObjectWithData:encodData options:0 error:nil];
    NSLog(@"Diccionario JSON: %@", json);
    if ([service isEqual:@"Depto"]) {

        //In this place full array

        _deptoArray=[NSOrderedSet orderedSetWithArray:[json valueForKey:@"Nombre"]];
        NSLog(@"solo nombre: %@", _deptoArray);
        pvList.delegate=self;
        viewList.hidden=false;
    }
}


- (IBAction)cbDepto:(id)sender {
    NSString *urlString = [NSString stringWithFormat:@"ConsultaDepartamentos"];
    [restConnection performRequest:
    [NSURLRequest requestWithURL:
    [NSURL URLWithString:urlString]]];
    service=@"Depto";
}

-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
    return 1;
}

-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{

    if ([service isEqualToString:@"Depto"]) {
        NSLog(@"en el picket: %@", _deptoArray);
        NSLog(@"data: %@", encodData);
        return [_deptoArray count];

    }else{
        return 0;
    }

}

@end

&#34; finishedReceivingData&#34;

中deptoArray的日志

2014-11-30 18:40:33.976 Salud Total [2629:132519] solo nombre :(     &#34; Bogot \ U00e1 DC&#34;,     安蒂奥基亚,     大西洋 )

&#34; numberOfRowsInComponent&#34;中的deptoArray的日志 2014-11-30 18:42:27.279 Salud Total [2629:132519]数据:{ }

或 消息:Thead 1:EXC_BAD_ACCESS(code = EXC_I386_GPFLT) 要么 2014-11-30 18:44:34.311 Salud Total [2650:133534]数据:(无索引)

1 个答案:

答案 0 :(得分:0)

感谢非常棒的支持,没有这个名为&#34; google&#34;我意识到我错了NSOrderedSet引用显然使用它作为指向接收数据的指针而不是另一个缓冲区。

首先我将NSOrderedSet更改为NSArray然后

我改变了

deptoArray=[NSOrderedSet orderedSetWithArray:[json valueForKey:@"Nombre"]];

deptoArray=[[NSArray alloc]initWithArray:[json valueForKey:@"Nombre"]];

并且工作

请不要让我有资格否定我即将阻止我提问,我是新手,这个论坛是一个很好的工具来帮助