Question

我需要在后台模式ios中从服务器获取数据。但是当我在后台运行app时，didReceiveData方法从未调用过。在前台它工作正常。当app在后台运行时，app会从applicationDidEnterBackground方法请求数据。我不能为什么didReceiveData方法不能调用。

请帮助我！

Answer 1

我用这种方式可以帮助你..

dispatch_async（dispatch_get_global_queue（DISPATCH_QUEUE_PRIORITY_DEFAULT，0），^ {

     NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
    [dic  setObject:string forKey:@"data"];
    [dic setObject:ADDD_DATA_UPGRADE forKey:@"cn"];
    [dic  setObject:@"true" forKey:@"mode"];
    [self login:dic];

    dispatch_async(dispatch_get_main_queue(), ^(void)
     {

    });
 });

}

- （无效）的登录：（的NSDictionary *）DIC {

[[NSUserDefaults standardUserDefaults] setBool:NO forKey:UPDATION_ON_SERVER_TIME];
SAAPIClient *manager = [SAAPIClient sharedClient];
[[manager responseSerializer] setAcceptableContentTypes:[NSSet setWithObject:@"text/html"]];
[manager postPath:@"" parameters:dic success:^(AFHTTPRequestOperation *operation, id responseObject)
 {
     if([[responseObject objectForKey:@"status"] boolValue])
     {
         NSLog(@"Success: %@ ***** %@", operation.responseString, responseObject);
        [self parseResponseFromJson:responseObject];
     }

 } failure:^(AFHTTPRequestOperation *operation, NSError *error)
 {
    [[NSUserDefaults standardUserDefaults] setBool:YES forKey:UPDATION_ON_SERVER_TIME];
     NSLog(@"Success: %@ ***** %@", operation.responseString, error);
 }];

在后台模式ios中从网址获取数据？

1 个答案: