Dealloc没有用ARC调用子视图

我有一个不常见的架构.有一个UIViewController和许多子视图.我使用UIView,如viewController和UIViewController进行过渡动画.

UIView有很多子视图,我在主窗口上推,我removeFromSuperview并且一切正常,但是子视图不能调用dealloc方法.我也尝试清理对象

- (void) dealloc {
    NSLog(@"ActivityShowVC dealloc");
    [showView removeFromSuperview];
    showView = nil;
}

这叫.

- (void) dealloc {
    NSLog(@"ActivityShowView dealloc");

    [mainScroll removeFromSuperview];

    [titleView setDelegate:nil];
    [titleView removeFromSuperview];
    titleView = nil;

    [photoView setDelegate:nil];
    [photoView removeFromSuperview];
    photoView = nil;

    [predictionView setDelegate:nil];
    [predictionView removeFromSuperview];
    predictionView = nil;

    [calendarView setDelegate:nil];
    [calendarView removeFromSuperview];
    calendarView = nil;

    [descriptionView setDelegate:nil];
    [descriptionView removeFromSuperview];
    descriptionView = nil;
}

但这有一些问题.