popviewcontrolleranimated

unwind segue vs. popViewControllerAnimated

由 随声附和 提交于 2019-12-20 04:06:22
问题 I have a mapview that is connected to several viewControllers. I needed to implement an 'unwind' from another button (as opposed to just the back button), so I used: self.navigationController?.popViewControllerAnimated(true) My question is: as the above works, should I even bother trying to implement unwind in code using prepareForUnwind and canPerformUnwindSegueAction in the parent view controller + ctrl-drag from the viewController to exit in Storyboard? If so, why? 回答1: Basically if you

UITextField contents are empty after popViewControllerAnimated

由 百般思念 提交于 2019-12-13 03:37:39
问题 In my app I'm using a navigation controller. My problem is, when I go to previous view and then back to my current view, all TextFields in this view are empty. I don't know how to save these values (in textfields) when I navigate through the stack from navigation controller. This is my method where I call popViewControllerAnimated: - (IBAction)swipeBack:(id)sender { [self.navigationController popViewControllerAnimated:YES]; } 回答1: In your previous view's .h file declare a property: @property

Button tint changes color when using popViewControllerAnimated

由 我只是一个虾纸丫 提交于 2019-12-10 15:06:28
问题 In View #1 I have two controls that are set in the storyboard; one is a UIBarButtonItem in the nav bar, the other is a UISegmentedController . The former is a custom-drawn image, and both items have their tint set to a purple color (tint set in the storyboard attributes inspector). Through various actions, the user can get to View #2 via View #1 . If a certain condition is not met when in View #2 , the user is displayed an error message, and is redirected back to View #1 upon clicking "OK".

My retainCount is increasing?

由 眉间皱痕 提交于 2019-12-09 04:27:26
问题 am trying here to build rss reader , the problem that when user finish read artical and press back the dealloc don't called and i got retainCount 6 & some times 7 !! i have lots of customized panels when back button pressed the view is poped and no dealloc called ?! .h file : @interface ArticalViewController : UIViewController<UIWebViewDelegate,UIScrollViewDelegate,UIActionSheetDelegate,ArticalBottomPanelDelegate,ArticalContentFetcherDelegate> { UIWebView * description_;

unwind segue vs. popViewControllerAnimated

由 微笑、不失礼 提交于 2019-12-02 04:55:31
I have a mapview that is connected to several viewControllers. I needed to implement an 'unwind' from another button (as opposed to just the back button), so I used: self.navigationController?.popViewControllerAnimated(true) My question is: as the above works, should I even bother trying to implement unwind in code using prepareForUnwind and canPerformUnwindSegueAction in the parent view controller + ctrl-drag from the viewController to exit in Storyboard? If so, why? Basically if you are just dimissing a presented UIViewController or popping a UIViewController from the navigation stack,you
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