• – viewWillAppear:
• – viewDidAppear:
• – viewWillDisappear:
• – viewDidDisappear:

導(dǎo)航

正常交互:

push一個(gè)VC的執(zhí)行順序A->B:

1. A viewWillDisappear
2. B viewWillAppear
3. A viewDidDisappear
4. B viewDidAppear

取消手勢(shì)返回A->B->A

執(zhí)行順序

1. A viewWillDisappear
2. B viewWillAppear
3. B viewWillDisappear
4. B viewDidDisappear
5. A viewWillAppear
6. A viewDidAppear

頁(yè)面滾動(dòng)

UIPageViewControllerTransitionStyleScroll:

正常交互A->B:

1. B viewWillAppear
2. A viewWillDisappear
3. B viewDidAppear
4. A viewDidDisappear

取消滾動(dòng)A->B->A:

1. B viewWillAppear
2. A viewWillDisappear
3. A viewWillAppear
4. A viewDidAppear
5. B viewWillDisappear
6. B viewDidDisappear

翻頁(yè)

UIPageViewControllerTransitionStylePageCurl

正常順序A->B

1. B viewWillAppear
2. A viewWillDisappear
3. A viewDidDisappear
4. B viewDidAppear

取消翻頁(yè)A->B->A:

1. B viewWillAppear
2. A viewWillDisappear
3. B viewWillDisappear
4. A viewWillAppear
5. B viewDidDisappear
6. A viewDidAppear
   參考:
   The Inconsistent Order of View Transition Events