AView.m
       UIButton *btn = [[UIButton alloc]initWithFrame()];
       [btn addTarget:self action:@selectior(perpareForSegue:sender:) forControlEvents:UIControlEventTouchUpInside];
       [self.view addSubview:btn];
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
       //I want to get destinationViewController of segue with identifier"toNextView" 
       // and then perform the segue
       // Difficulties that I encounter is that I have a NSInvalidArgumentException
       // Is that mean the view controller doesn't know the existence of the segue?
       // I have connected two controller with a segue
}
我想用标识符“toNextView”获取segue的destinationViewController,然后执行segue我遇到的困难是我有一个NSInvalidArgumentException这是否意味着视图控制器不知道segue的存在?我已将两个控制器与 segue 连接起来。