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我在Json上使用GET方法。 GET方法在for循環中，問題在於它沒有完成任務或沒有得到結果。而循環增量。我在塊中放置了一個斷點，我將結果數據設置爲一個NSDictionary，但它永遠不會去那裏。等待或不退出獲取json的代碼塊
是否可以直接調用GET方法。我的意思是代碼將逐行讀取。它不會跳過或等待json完成處理？
這裏是我做了什麼：
- (void)downloadJsonFeed
{
for(int i = 1;i < self.numberOfEpisodes;i++)
{
NSString *endPoint = [[[[baseJsonUrl stringByAppendingString:getEpisodes]stringByAppendingString:self.title]stringByAppendingString:@"&episodeNumber="]stringByAppendingString:[NSString stringWithFormat:@"%i",i]];
NSLog(@"End point %@",endPoint);
[JsonDownload getJson:token andEndpointString:endPoint WithHandler:^(__weak id result)
{
NSArray *episodeArray =result;
//will do some task here
}];
}
}
- (void)getJson:(NSString *)authData andEndpointString:(NSString *)urlString WithHandler:(void(^)(__weak id result))handler
{
NSURLSessionConfiguration *defaultConfigObject = [NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession *defaultSession = [NSURLSession sessionWithConfiguration: defaultConfigObject delegate: nil delegateQueue: [NSOperationQueue mainQueue]];
NSURL * url = [NSURL URLWithString:urlString];
NSMutableURLRequest * urlRequest = [NSMutableURLRequest requestWithURL:url];
//NSString *auth = [NSString stringWithFormat:@"Bearer {%@}", authData];
[urlRequest setValue:@"application/json" forHTTPHeaderField:@"Content-type"];
[urlRequest setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[urlRequest setValue:authData forHTTPHeaderField:@"Cookie"];
[urlRequest setHTTPMethod:@"GET"];
NSURLSessionDataTask * dataTask =[defaultSession dataTaskWithRequest:urlRequest
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if(error == nil)
{
id returnedObject = [NSJSONSerialization JSONObjectWithData: data options: NSJSONReadingMutableLeaves error:nil];
handler(returnedObject);
}
else{
NSLog(@"error %@",error);
}
}];
[dataTask resume];
}
我已經放在一個破發點中的這條線NSArray *episodeArray =result;和它永遠不會去那裏。但是當我把斷點[JsonDownload getJson:token andEndpointString:endPoint WithHandler:^(__weak id result)行它是響應
而在評論行//will do some task here我需要一個任務之前再次獲得另一個JSON。但我不能讓它永遠不會進入代碼塊