Question

嗨，有最好的成员，

我有一个关于从我的类调用一个方法到UITableViewController的问题，在这个方法中调用：loadData我已经连接到我的localhost并获得一个json对象，这个方法的实现是这样的不需要担心这一点，当我NSLog它给我正确的输出。

奇怪的是，当我在TableViewController中将此方法调用到我的ViewDidLoad方法时，我什么都得不回来，这怎么可能？因为当我将我的方法移动到TableViewController的.h文件中并将其实现到我的TableViewController.m时，它就可以工作。

这是一个例子。

@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好的方向，我会非常感激的。

Answer 1

@interface CLub：NSObject

@property（非原子的，强大的）NSMutableArray *团队;

@property（非原子，强）NSString * teamName;

- （无效）loadData;

@end

@implementation CLub

- （ID）INIT {
self = [super init];
if (self) {
 teams = [[NSMutableArray alloc]init];

}
return self;
}

- （BOOL）loadData {       BOOL isDataLoaded = NO;       NSURL * url = [[NSURL alloc] 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;

}

@end

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];



如果（isDataLoadedSuccessFully）{   //重新加载UI   }否则{}

}

从UITableViewController中的类调用方法

1 个答案: