uiviewcontroller

问题 If a Single View app is created for iPad, depending on the Supported Device Orientation is set for the plist, and what shouldAutorotateToInterfaceOrientation returns, shouldAutorotateToInterfaceOrientation can be called 10, 12, or even 13 times. One simple case is, if the "Support Device Orientation" is set to Landscape Left, and shouldAutorotateToInterfaceOrientation also returns YES only for Landscape Left, then if I start the app in Landscape Left orientation, then

问题 I've got three ViewControllers - V1 V2 and V3. A button click on V1, ViewController V2 is displayed with animation FlipHorizontal. Now on a button click from V2, ViewController should be dismissed back to V1 and display ViewController V3. I tried this piece of code to achieve this functionality. It's not working though. Please help! Note : V2 and V3 are in same StoryBoard (Start). V1 is in different story board(main). var VC3 : ViewController3? let mainStoryboard: UIStoryboard = UIStoryboard

问题 I am trying to build a splash screen so I want the 1st View Controller to move to 2nd ViwController automatically after 3.0 sec I have tried the below method but an infinite loop has started what should i do ,how should I stop on second view controller. - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. NSLog(@"%p", self); NSLog(@"1st Controller"); [self.navigationController setNavigationBarHidden:YES animated:YES]; dispatch

问题 I have a problem with transferring data between UIViewController and I don't find answers in former questions. Situation : I have a first viewController ('CalViewController') which allows users to input data. Then I calculate with those datas a number (named 'calories' for example). The next views are two UIViewController ( DrinksViewController & FoodViewController )displayed in a TabBarController and I need value of 'calories'. What I've tried : - prepareForSegue method : It doesn't work

问题 I asked a question about dismissing multiple view controllers previously and the answers that i was given along with the possible solutions i found elsewhere have all failed to achieve the desired effect. i have narrowed down my issue to something with the way i set up my delegation. the code is below and i would really appreciate any feedback. my full project can be downloaded here: https://www.yousendit.com/download/TEhWckhYQVNYSHpIRHNUQw Thanks. // // QuestionViewController.h //

问题 The setup I have on the iPad is a UISplitViewController that handles the main content of the app. This is set to the rootViewController of the UIWindow. When the app launches, I test to see if the user is able to login to the web service. If the user isn't able to access the web service they are presented with a UIViewController subclass which handles the authentication for the user. The UIViewController subclass is presented modally by calling: [splitViewController presentViewController

问题 I have a viewcontroller in my storyboard that is a game. I have added a restart button and linked it to the same viewcontroller so that when the player dies they can click that and the game will start all over again. My problem is that when you click it and it restarts the game starts glitching. Any suggestions or solutions. I cant use a unwind seague so what should I do. 回答1: It really depends on your code, specifically in your viewDidLoad. Create an IBAction for that restart button in your

问题 I have a viewcontroller in my storyboard that is a game. I have added a restart button and linked it to the same viewcontroller so that when the player dies they can click that and the game will start all over again. My problem is that when you click it and it restarts the game starts glitching. Any suggestions or solutions. I cant use a unwind seague so what should I do. 回答1: It really depends on your code, specifically in your viewDidLoad. Create an IBAction for that restart button in your

问题 I just can't understand what am i doing wrong with this. I have 2 unrelated view controllers, which i created in storyboard by dragging a view controller to screen. each has its name identifier in storyboard and i replace between them by their names. Problem is ,that after the first replacement i get tens of memory warnings that are unrelated to reality because my memory consumption is about 59M and stay like that . When i switch from A to B and than back to A, sometimes its crash due to

问题 I'm building a Custom Container ViewController to house several instances of a nib. This nib holds a ViewController subclassed as DemoViewController During the viewWillAppear of the Container, I perform the following: - (void) viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; NSLog(@"Container will appear"); if (_selectedViewController.parentViewController == self) { // nowthing to do return; } DemoViewController *vc = [[DemoViewController alloc] initWithNibName:@"Gauge" bundle