是否可以在iOS中回收/强制销毁UIViewController？问：如何强制销毁iOS中的视图控制器？

我用这github project得到一个定制UIViewControllerTransition：

这里是程序的流程：

vc1礼物给nav到的rootVc是vc2

在vc2有是UIButton。点击后，vc2的NavigatioCcontroller将被解雇。

但问题是，vc2不是由OS回收，所以当我进展为vc1，然后呈现给nav(这rootVc是vc2)，vc2不调用viewDidLoad方法。

不知道问题出在哪里。有没有办法让我点击vc2的UIButton，强制销毁nav和vc2？这样，当我再次出现到nav时，vc2的viewDidload将再次被调用。

代码：

在vc1：

LMLQQSearchSelectViewController *search_vc = [[LMLQQSearchSelectViewController alloc] initWithNibName:@"LMLQQSearchSelectViewController" bundle:nil];

search_vc.fromController = @"KnowledgeViewController";

search_vc.pre_type = @"ENCYCLOPEDIACOL";

LMLQQSearchNavController *nav = [[LMLQQSearchNavController alloc] initWithRootViewController:search_vc];

nav.navigationBarHidden = YES;

__weak typeof(self) weakSelf = self;

_search_header.block = ^(){

weakSelf.transition = [[HYBEaseInOutTransition alloc] initWithPresented:^(UIViewController *presented, UIViewController *presenting, UIViewController *source, HYBBaseTransition *transition) {

HYBEaseInOutTransition *modal = (HYBEaseInOutTransition *)transition;

// If you don't specify, it will use default value

// Default is NO, if set to YES, it will use spring animation.

modal.animatedWithSpring = NO;

} dismissed:^(UIViewController *dismissed, HYBBaseTransition *transition) {

// do nothing

}];

nav.transitioningDelegate = weakSelf.transition;

[weakSelf presentViewController:nav animated:YES completion:NULL];

};

2016-09-29

aircraft