菜鸟ios开发

- (NSArray *)groups

{

    if (_groups == nil) {

       // NSArray *dictArray = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"friends.plist" ofType:nil]];

        NSString *path = [[NSBundle mainBundle]pathForResource:@"friends.plist" ofType:nil];

        NSArray *dictArray = [[NSArray alloc]initWithContentsOfFile:path];

        NSMutableArray *groupArray = [NSMutableArray array];

        for (NSDictionary *dict in dictArray) {

            CHFriendGroup *group = [CHFriendGroup groupWithDict:dict];

            [groupArray addObject:group];

        }

        _groups = groupArray;

    }

    return _groups;

}

//懒加载

菜鸟ios开发

原文：http://www.cnblogs.com/software00/p/4541299.html