Current view controller from AppDelegate?

by

If your app’s root view controller is a UINavigationController you can do this:

((UINavigationController*)appDelegate.window.rootViewController).visibleViewController;

Similarly, if it’s a UITabBarController you can do this:

((UITabBarController*)appDelegate.window.rootViewController).selectedViewController;

Of course, explicit casting like this is dirty. Better would be to capture the reference yourself using strong types.

More Related Contents:

  1. Container View Controller Examples [closed]
  2. Move UIView up when the keyboard appears in iOS
  3. Use Data From Class Without A New Init
  4. How to identify previous view controller in navigation stack
  5. Application windows are expected to have a root view controller at the end of application launch warning
  6. How change the size of sprite in cocos2d? [closed]
  7. How to find topmost view controller on iOS
  8. UIRefreshControl without UITableViewController
  9. File write with [NSBundle mainBundle] fails
  10. In a storyboard, how do I make a custom cell for use with multiple controllers?
  11. Collapse sequences of white space into a single character and trim string
  12. CoreData relationship fault?
  13. How can I create a zip file by using Objective C?
  14. Why shouldn’t I use the getter to release a property in objective-c?
  15. Does ARC work with Core Graphics objects?
  16. Prompt login alert with Twitter framework in iOS5?
  17. NSURLConnection sendAsynchronousRequest:queue:completionHandler: making multiple requests in a row?
  18. Getting ARP table on iPhone/iPad
  19. Non-lazy image loading in iOS
  20. How to use reachability class to detect valid internet connection?
  21. AVAudioPlayer stops playing immediately with ARC
  22. Custom dealloc and ARC (Objective-C)
  23. UIWebView iOS5 changing user-agent
  24. Ask permission to access Camera Roll
  25. Detect screen on/off from iOS service
  26. How to set a timeout with AFNetworking
  27. How to get root view controller?
  28. Finding file’s size
  29. How to enable the new Objective-C object literals on iOS?
  30. Detecting if UIView is intersecting other UIViews

Leave a Comment