检查Facebook请求结果

Question

我想知道在iOS设备上请求Facebook Graph API时如何检查结果的结构。例如：

[facebook requestWithGraphPath:@"me/friends" andDelegate:self]; 

谢谢：）

Answer 1

您需要检查对象的类型（可能是NSArray或NSDictionary），然后相应地迭代

NSString *key, *val;
NSEnumerator myenum;      
if ([result isKindOfClass:[NSDictionary class]]) {
        for (key in result) {
            myenum = [result objectEnumerator];
            while (val = [myenum nextObject]) {
                if ([val isKindOfClass:[NSArray class]]) {
                for (id entry in (NSArray *)val) {

                    if ([entry isKindOfClass:[NSDictionary class]]) {
                        NSString * theid = [(NSDictionary *) entry objectForKey:@"id"];
                        NSString *thename = [(NSDictionary *)entry objectForKey:@"name"];
                        // do your stuff here
                    }
           }
        }