为什么setViewControllers不会触发viewWillDisappear和dealloc？

Question

如果我在[detailNavigationController popToRootViewControllerAnimated:NO] viewControllers之前没有添加[detailNavigationController setViewControllers:...]，那么在setViewControllers没有收到viewWillDisappear并且没有取消分配之前会推送这些viewWillAppear。我检查了，我正在转发viewDidAppear，automaticallyForwardAppearanceAndRotationMethodsToChildViewControllers等等。我还尝试添加shouldAutomaticallyForwardAppearanceMethods并单独添加{{1}}以返回YES（即使默认值已经是YES ）。那些也不行。

我可能做错了什么？

Answer 1

在设置ViewControllers

之前，

在viewcotroller上调用autorelease

TestViewController * testView = [[[TestViewController alloc]initWithNibName @"TestViewController" bundle: nil]autorelease];
[self.navigationcontroller setViewControllers: @[testView] animated: YES];