This warning message happens on both iOS 8 and 9 devices as well as simulator:
[Warning: Unable to create restoration in progress marker file]
It only shows once when I first launch (With first installation) the app. Any subsequent launch of this app from Xcode without uninstalling it will NOT show this warning message.
Is this normal for my app? This is what I did to my code:
AppDelegate.swift:
import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.
return true
}
func application(application: UIApplication, willFinishLaunchingWithOptions launchOptions: [NSObject : AnyObject]?) -> Bool {
return true
}
func application(application: UIApplication, shouldSaveApplicationState coder:NSCoder) -> Bool{
return true;
}
func application(application: UIApplication, shouldRestoreApplicationState coder:NSCoder) -> Bool{
return true;
}
}
The Restoration ID is purely done in Main.storyboard, such that RestorationID and StoryboardID are the same. And also, only top level of View has the same RestorationID as the StoryboardID.
In the default created tabbed view application, I applied the following onto both my controllers (With the second controller named as "SecondView" instead)
StoryboardID and RestorationID are the same
Top View has the RestorationID same as the StoryboardID
Meanwhile, what will happen if I simply set the following functions as false:
func application(application: UIApplication, shouldSaveApplicationState coder:NSCoder) -> Bool{
return true;
}
func application(application: UIApplication, shouldRestoreApplicationState coder:NSCoder) -> Bool{
return true;
}
Will my application still work even when it requires extended period of time in lock screen or background?
