我想从网络服务器获取对照片的评论。服务器返回包含注释的数组。是否可以将块而不是注释数组附加到NSMutableDictionary? 我希望块返回注释并将其值插入字典。
我的意思是有人这样认为(但它会产生编译错误):
NSArray* (^commentsBlock)(id responseObject) = ^(id responseObject){
return responseObject;
};
[self fetchCommentsForNode:[fileInfo objectForKey:@"nid"]
success: commentsBlock];
VDPhoto *photo = [VDPhoto photoWithProperties:
@{@"imageView": imageview,
@"title": [fileInfo objectForKey:@"title"],
@"comments" : commentsBlock,
}];
[photos addObject:photo];
答案 0 :(得分:1)
除了评论中的讨论之外,您可能想要做这样的事情......
在fetchCommentsForNode:success:
的块中内联一些内容 - 更新字典:
NSMutableDictionary *properties = [@{@"imageView": imageview,
@"title": [fileInfo objectForKey:@"title"]} mutableCopy];
[self fetchCommentsForNode:[fileInfo objectForKey:@"nid"] success:^(id responseObject){
properties[@"comments"] = responseObject;
return responseObject;
}];
VDPhoto *photo = [VDPhoto photoWithProperties:properties];
[photos addObject:photo];
您要做的就是确保@property
方法中VDPhoto
properties
init
中的strong
为copy
,而不是success
然后您可以查看字典,并在调用@property (nonatomic, copy) NSArray *comments
块后设置注释。
编辑:
更好的选择是将VDPhoto
属性添加到fetchCommentsForNode:
,然后在VDPhoto *photo = [VDPhoto photoWithProperties:@{@"imageView": imageview,
@"title": [fileInfo objectForKey:@"title"]}];
[photos addObject:photo];
[self fetchCommentsForNode:[fileInfo objectForKey:@"nid"] success:^(id responseObject){
photo.comments = responseObject;
return responseObject;
}];
上设置结果:
{{1}}
答案 1 :(得分:0)
不,一个物体不能成为"另一个对象。你想要做的是让块在字典中插入结果数组,而不是"成为"结果数组。