我收到错误:
"正在主线程上执行长时间运行的Parse操作.在warnParseOperationOnMainThread()上执行调试."
和
"打破warnParseOperationOnMainThread()进行调试."
我无法在我的代码中找到错误.有人可以告诉我我做错了什么吗？
PFQuery *query = [PFQuery queryWithClassName:@"User"];
[query getObjectInBackgroundWithId:[[PFUser currentUser] objectId] block:^(PFObject *object, NSError *error) {
self.firstName = object[@"firstname"];
self.lastName = object[@"lastname"];
self.nameLabel.text = [[NSArray arrayWithObjects:self.firstName, self.lastName, nil] componentsJoinedByString:@" "];
}];