有人可以帮我解决这个问题:
我在TableVC.m文件中创建了一个属性:
$var1 = result 1
$var2 = result 2
$var3 = result 3
在我的Viewdidload中,我实例化了数组:
@property NSMutableArray *savingBeaconSpecs;
现在我向服务器发出请求,我想将返回的JSON保存到对象中,并且每次都将它们保存在数组中。所以我在ConnectionDidFinishLaunching中执行了以下操作:
NSMutableArray *savingBeaconSpecs = [[NSMutableArray alloc]init];
和
self.artworkArray = [NSJSONSerialization JSONObjectWithData:self.data options:0 error:&err];
NSLog(@"Log ArtworkArray in ConnectionDidFinishLoading%@", self.artworkArray);
现在我想将此对象保存到savingBeaconSpecs NSMutableArray
中Artwork *artwork = [[Artwork alloc]init];
artwork.title = [self.artworkArray valueForKey:@"name"];
artwork.artist = [[self.artworkArray objectForKey:@"artist"] valueForKey:@"name"];
artwork.CreationYear = [self.artworkArray valueForKey:@"creationYear"];
artwork.categorie = [[self.artworkArray objectForKey:@"exposition"] valueForKey:@"name"];
但是当我尝试记录他的内容时,NSMUtableArray savingBeaconSpecs总是返回0
有人请吗?
答案 0 :(得分:1)
因为你在viewDidLoad中声明了它:
NSMutableArray *savingBeaconSpecs = [[NSMutableArray alloc]init];
你应该使用
self.savingBeaconSpecs = [[NSMutableArray alloc]init];
和
[self.savingBeaconSpecs addObject:artwork];
并声明您的财产为(没有第一个首都S)
@property NSMutableArray *savingBeaconSpecs;
答案 1 :(得分:0)
要实例化数组,您应该:
self.savingBeaconSpecs = [[NSMutableArray alloc] init];
或同样好:
self.savingBeaconSpecs = [NSMutableArray array];