从UITableViewController中的类调用方法

Question

大家好，大家好

我有一个关于从类中调用UITableViewController的方法的问题，在此方法中：loadData我已连接到本地主机并获取json对象，该方法的实现有效，因此无需担心那，当我NSLog它给我正确的输出。

奇怪的是，当我在TableViewController的ViewDidLoad方法中调用此方法时，我什么也收不到，这怎么可能？ 因为当我将方法移到TableViewController的.h文件并将其实现到TableViewController.m时，它才起作用。

这里举个例子。

@interface CLub : NSObject

@property(nonatomic,strong) NSMutableArray *teams;
@property(nonatomic,strong) NSString *teamName;
-(void)loadData;

@end

@implementation CLub

-(void)loadData {

    NSURL *url = [[NSURL alloc] initWithString:@"http://localhost/xampp/flashbackapi/"];
    NSURLRequest *request = [[NSURLRequest alloc] initWithURL:url];


    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
    operation.responseSerializer = [AFJSONResponseSerializer serializer];
    [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {


        self.club.teams = [[NSMutableArray alloc] init];

        self.club.teams = [responseObject objectForKey:@"clubs"];




    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSLog(@"Error %@ %@",error,error.userInfo);
    }];



    [operation start];

}

@end

@implementation ClubsTableViewController


- (void)viewDidLoad
{
    [super viewDidLoad];

    self.club = [[CLub alloc]init];
    [self.club loadData];

}

如果有人可以帮助我或给我一个很好的指导，我将非常感激。

Answer 1

@interface CLub：NSObject

@property（nonatomic，strong）NSMutableArray *团队；

@property（nonatomic，strong）NSString * teamName;

-（无效）loadData;

@结束

@实现CLub

-（id）init {

 self = [super init]; if (self) { teams = [[NSMutableArray alloc]init]; } return self; 

}

-（BOOL）loadData {BOOL isDataLoaded = NO; NSURL * url = [[NSURL分配] initWithString：@“”]; NSURLRequest * request = [[NSURLRequest alloc] initWithURL：url];

AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
operation.responseSerializer = [AFJSONResponseSerializer serializer];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {


    self.club.teams = [[NSMutableArray alloc] init];

    self.club.teams = [responseObject objectForKey:@"clubs"];

    isDataLoaded = YES;
    return isDataLoaded ;



} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error %@ %@",error,error.userInfo);
    isDataLoaded = NO;
    return isDataLoaded ;

}];

[operation start];
return isDataLoaded;

}

@结束

在viewController中检查是否返回yes

@implementation ClubsTableViewController

• （void）viewDidLoad {[super viewDidLoad];

  self.club = [[CLub alloc] init]; BOOL isDataLoadedSuccessFully = [self.club loadData];

if（isDataLoadedSuccessFully）{//重新加载用户界面} else {}

}