我試圖提出一個視圖控制器(密碼請求類型視圖),每次我的應用程序變爲活動狀態。一旦輸入正確的密碼,它應該彈出堆棧。我試圖推送的密碼視圖不是初始視圖控制器,所以我無法通過AppDelegate的applicationDidBecomeActive訪問它。從AppDelegate呈現特定的視圖控制器
我也嘗試從我的MainViewController的ViewWillAppear推送密碼視圖,但它不會在應用程序變爲活動狀態時被調用;只有當屏幕刷新時纔會顯示。
過去幾天我一直在研究類似的問題,但我仍然不理解正確的方法。我聽說我可能無法以這種方式推送視圖,因爲可能會在Storyboard或NavigationController連接/初始化/ etc之前調用applicationDidBecomeActive。
如果任何人都可以提供正確的方式來推送/呈現視圖,或者如果有其他地方會更好地做這種事情,我會很感激。
已解決:我剛剛從故事板中刪除了視圖,而是使用了筆尖。我用:
PasscodeUnlockVC *passcodeUnlock = [[PasscodeUnlockVC alloc] initWithNibName:@"PasscodeUnlockVC" bundle:[NSBundle mainBundle]];
[(UINavigationController *)self.window.rootViewController pushViewController:passcodeUnlock animated:NO];
景觀層次數據:
(gdb) po [[(id)UIApp keyWindow] recursiveDescription]
<UIWindow: 0x736a4b0; frame = (0 0; 320 480); layer = <UIWindowLayer: 0x7367b40>>
| <UILayoutContainerView: 0x76977a0; frame = (0 0; 320 480); autoresize = W+H; layer = <CALayer: 0x769de60>>
| | <UINavigationTransitionView: 0x7692110; frame = (0 0; 320 480); clipsToBounds = YES; autoresize = W+H; layer = <CALayer: 0x769a8c0>>
| | | <UIViewControllerWrapperView: 0x73868d0; frame = (0 64; 320 416); autoresize = W+H; layer = <CALayer: 0x75510e0>>
| | | | <UIView: 0x76b93e0; frame = (0 0; 320 416); autoresize = W+H; layer = <CALayer: 0x7386850>>
| | <UINavigationBar: 0x73664b0; frame = (0 20; 320 44); clipsToBounds = YES; opaque = NO; autoresize = W; layer = <CALayer: 0x7366550>>
| | | <UINavigationBarBackground: 0x7360ea0; frame = (0 0; 320 44); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x7366520>> - (null)
| | | <UINavigationItemView: 0x76b95e0; frame = (160 21; 0 0); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x76aa8e0>>
| | | <UINavigationItemButtonView: 0x7550650; frame = (5 7; 73 30); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x7368b40>>
Current language: auto; currently objective-c
(gdb)
我不熟悉的'viewDidBecomeActive'消息,當我搜索'developer.apple.com'吧,我沒有得到結果。也許你應該告訴我們更多關於這種方法,或者甚至向我們展示你的代碼。 – 2012-03-03 18:59:30
對不起,我的意思是applicationDidBecomeActive。我將編輯帖子。 – 2012-03-03 19:08:16
我試圖複製你的模態視圖顯示,但它告訴我pushViewController:動畫是無法識別的,你能告訴我,如果你在iOS 6上嘗試過嗎? – perrohunter 2012-11-12 22:24:23