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Detecting when the 'back' button is pressed on a navbar
I need to perform some actions when the back button(return to previous screen, return to parent-view) button is pressed on a Navbar. Is there some method I can implement to catch the event and fire off some actions to pause and save data before the screen disappears?
iOS 7 — navigationController is setting the contentInset and ContentOffset of my UIScrollView
I have a UIScrollView (actually a UICollectionView, but that probably doesn’t matter). When it appears in IOS 7, the navigation controller sets its contentInset and contentOffset to values I don’t want. It appears to be trying to adjust for the status bar and the navigation bar. I’d greatly prefer it left them alone. I’ve fixed […]
How to change inside background color of UISearchBar component on iOS
I know how to remove/change UISearchBar background color around search field: [[self.searchBar.subviews objectAtIndex:0] removeFromSuperview]; self.searchBar.backgroundColor = [UIColor grayColor]; But don’t know how to do this inside it like that: This needs to be compatible with iOS 4.3+.
iOS 9 Facebook login simulator -canOpenURL: failed for URL: “fbauth2:///” – error: “(null)”
I’ve updated to Xcode 7 and the latest iOS SDK. I’ve added the appropriate entries in my app’s plist: My app’s Facebook login works fine on device. However, on iOS 9 simulator, I’m getting: -canOpenURL: failed for URL: “fbauth2:///” – error: “(null)” And login is not working. I’ve seen facebook login issue – canOpenURL: failed […]
boundingRectWithSize for NSAttributedString returning wrong size
I am trying to get the rect for an attributed string, but the boundingRectWithSize call is not respecting the size I pass in and is returning a rect with a single line height as opposed to a large height (it is a long string). I have experimented by passing in a very large value for […]
Does Apple provide an API for SIRI?
Is it possible that Apple does or will provide an API for Siri? It would be great if I can be sipping my coffee and say, User: Hey Siri, could you please open Angry Birds; Level 4 and throw a first bird for me. Make sure you at least hit one green pig or it’s […]
Simple http post example in Objective-C?
I have a php webpage that requires a login (userid & password). I have the user enter the information into the app just fine.. but I need an example on how to do a POST request to a website. The apple example on the support site is rather complicated showing a picture upload.. mine should […]