我有一个朋友ID数组,我想调用它然后存储返回的数据对象。
看起来像这样:
for (int i = 0; i < self.friendIDArray.count; i++){
self.detailedRequest = [facebook requestWithGraphPath:[self.friendIDArray objectAtIndex:i] andDelegate:self];
}
问题是我想我发出的请求太频繁了,而且没有让FB有机会正确地返回数据?我怎样才能解决这个问题?感谢
答案 0 :(得分:1)
这是你需要做的。这非常类似于模拟使用NSURLConnection API进行异步请求的方式。
在标题/ .h文件中创建一个类属性(成员变量,无论你想调用它)
//header/.h file
int indexOfLastFriendLoaded;
在您的实施文件中:
- (void) loadFriend:(int) indexOfFriendToLoad {
[facebook requestWithGraphPath:[self.friendIDArray objectAtIndex:indexOfFriendToLoad] andDelegate:self];
}
//this method is called when each facebook request finishes,
- (void)request:(FBRequest *)request didLoad:(id)result {
//first do whatever you need to with "result" to save the loaded friend data
//We make the next request from this method since we know the prior has already completed.
if (indexOfLastFriendLoaded < [self.friendIDArray count]) {
[self loadFriend:indexOfLastFriendLoaded];
indexOfLastFriendLoaded++;
}
}
- (void) viewDidLoad {
//initialize facebook object first
indexOfLastFriendLoaded = 0;
[self loadFriend:indexOfLastFriendLoaded];
}
答案 1 :(得分:0)