uiviewcontroller

问题 This has been stumping me for a while now. I have a UISplitViewController inside a UITabBarController . The master view is a TableView. When I click on a cell, I bring up a very basic view controller with just a UIButton centered. Here is the code for the view controller: class TestViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate { @IBOutlet weak var button: UIButton! override func viewDidLoad() { super.viewDidLoad() } override func

问题 I am using a xib file as a back view in coverflow component . and it is seeing nicely . The code for loading a xib file is : NSArray *array = [[NSBundle mainBundle] loadNibNamed:@"TestMine" owner:nil options:nil]; backView = [array objectAtIndex:0]; Now I want to attach a view controller with this xib without changing the current code . How can I do so ? I am getting the error : Exception :*** -[UIViewController superview]: unrecognized selector sent to instance 0x5891120 Tell me if more

问题 I just noticed that a file called ViewController.swift (Interface) was created automatically by Xcode when I created my first ViewController. Do classes in Swift have/need interfaces the same as in Objective-C and are created behind the scenes by Xcode? Can someone be so kind and explain what is the purpose of this file? ViewController.swift (Interface) import UIKit internal class ViewController : UIViewController { override internal func viewDidLoad() override internal func

问题 Okay..here's the problem. When I click the [Play] button in the main menu, it should go to the corresponding ViewController according to this code: @IBAction func playButton(sender: AnyObject) { if rightCounter <= 4 { if let Level1 = self.storyboard!.instantiateViewControllerWithIdentifier("Level1") as? Level1 { self.presentViewController(Level1, animated: true, completion: nil) } } if rightCounter >= 5 && rightCounter <= 9 { if let Level2 = self.storyboard!

问题 I am getting following exception: Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Could not load NIB in bundle: 'NSBundle </var/mobile/Applications/57C8544B-05F6-445D-80A9-FAC9672F278B/MyApp.app> (loaded)' with name 'MyNibName'' I tried number of solutions suggested in stackoverflow's similar questions, but still getting this issue. This issue is with particular xib file which loads address book. This occurs only on iPhone and not on iPad and simulator.

问题 I’m reorganising old code by creating a custom UIView to separate UI elements that belong in the View from those that belong in the ViewController. Several buttons previously included in several ViewControllers are now in a single custom UIView and I need them to send messages to methods inside the current viewController so users can navigate to other viewControllers. This answer on SO suggests using a delegate while this answer to the same question suggests not using a delegate. This answer

问题 I’m reorganising old code by creating a custom UIView to separate UI elements that belong in the View from those that belong in the ViewController. Several buttons previously included in several ViewControllers are now in a single custom UIView and I need them to send messages to methods inside the current viewController so users can navigate to other viewControllers. This answer on SO suggests using a delegate while this answer to the same question suggests not using a delegate. This answer

问题 I've noticed that apps like instagram and picplz have a fairly standard screen that lets users share their photo on facebook, twitter, flickr, posterous, etc. Does anyone here know if there's an open source product that I can put into my iPhone app that will let me do the same thing? Specifically it would be great if there some subclass of UIViewController that had all those share options in one place. Thanks for your help! 回答1: I think you look for something like ShareKit. I didn't use it

问题 I really can't figure this out. When I click a link to open Safari from within my app, browse through the webpage, then return to my app, I can open and browse two tabBarItems in my UITabBar . But, when I try to select the one atIndex: 0 , I get an EXEC_BAD_ACCESS and the following :(. Can anyone help me figure out how to make this not happen? I currently don't have any code that executes in will or didEnterBackground or Foreground . None. So the problem must be in the UIViewController for

问题 I really can't figure this out. When I click a link to open Safari from within my app, browse through the webpage, then return to my app, I can open and browse two tabBarItems in my UITabBar . But, when I try to select the one atIndex: 0 , I get an EXEC_BAD_ACCESS and the following :(. Can anyone help me figure out how to make this not happen? I currently don't have any code that executes in will or didEnterBackground or Foreground . None. So the problem must be in the UIViewController for