目标C如何从子视图中调用视图控制器中的方法

Question

Newbee问题 -

我在视图控制器m中有这个方法：

-(void) backToHP:(id<SwitchViewProtocol>) fromView{

    [(UIView *)self.currentView removeFromSuperview];
    [self.currentView clearView];
    [self.view addSubview:_hpView];
    self.currentView = nil;

    CATransition *animation = [CATransition animation];
    [animation setDuration:0.2];
    [animation setType:kCATransitionPush];
    [animation setSubtype:kCATransitionFromLeft];
    [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];

    [[self.view layer] addAnimation:animation forKey:@"SwitchToView1"];
}

我尝试从子类调用它。 子类h：

@interface SetNotificationClass : UIView < SwitchViewProtocol> {

    habitsViewController *hvc;

}

@property (nonatomic, retain) habitsViewController *hvc;

子类m：

@synthesize hvc;

- (IBAction)saveNotificationClick:(id)sender {
   // [self scheduleAlarm];
    [hvc backToHP:nil];
}

我收到“找不到方法”错误。任何想法？

由于

Answer 1

你在哪里初始化hvc？你没有发回toToHP：为零，对吗？我也可能只是将视图控制器设置为视图的委托，而不是创建新属性。