oc 通知傳值 可以傳壹個字典嗎

IBAction)buttonClick:(id)sender {

//添加 字典，將label的值通過key值設置傳遞

NSDictionary *dict =[[NSDictionary alloc]initWithObjectsAndKeys:self.textFieldOne.text,@"textOne",self.textFieldTwo.text,@"textTwo", nil];

//創建通知

NSNotification *notification =[NSNotification notificationWithName:@"tongzhi" object:nil userInfo:dict];

//通過通知中心發送通知

[[NSNotificationCenter defaultCenter] postNotification:notification];

[self.navigationController popViewControllerAnimated:YES];