This is the first opportunity to execute any code within the app. Method called when the launch process is nearly complete. Since this method is called is before any of the app's windows are displayed, it is the last opportunity to prepare the interface and make any final adjustments. Once the application has become active, the application delegate will receive a callback notification message via the method applicationDidBecomeActive.
This method is also called each time the app returns to an active state from a previous switch to inactive from a resulting phone call or SMS. There are several conditions that will spawn the applicationWillResignActive method.
Each time a temporary event, such as a phone call, happens this method gets called. It is also important to note that "quitting" an iOS app does not terminate the processes, but rather moves the app to the background. This method is called when an iOS app is running, but no longer in the foreground. In other words, the user interface is not currently being displayed.
If the method does not return within five seconds, the application is terminated. This method is called as an app is preparing to move from the background to the foreground. The app, however, is not moved into an active state without the applicationDidBecomeActive method being called. This method gives a developer the opportunity to re-establish the settings of the previous running state before the app becomes active. This method notifies your application delegate when a termination event has been triggered.
Hitting the home button no longer quits the application. Force quitting the iOS app, or shutting down the device triggers the applicationWillTerminate method. This is the opportunity to save the application configuration, settings, and user preferences. Every iOS app is always in one of the five app states. The operating system manages the app state, but the app itself is responsible for managing important tasks to ensure smooth transitions between the states.
But applicationDidFinishLaunching is still never called. Although not formally deprecated, do not use this method in your apps. If you add any files,it will delete all existing files related to this question- questions only answer remains unchanged. Your request will be Queued. We will review the question and remove. So, does the Views inside "main. According to the documentation, applicationDidFinishLaunching is called by NSApplication just before entering into the application event loop.
You could try applicationWillFinishLaunching, which is called just after the application object is initialized, which should be before any controllers are created, if that is appropriate.
You could also override the init method Swift or Objective-C if that makes sense. Is this a document-based app or a single-window type app?
This is a Single Window based App. The difference is that before I was manually instantiating the View Controller in applicationDidFinishLaunching after initialising the App , now its being instantiated automatically by the OS.
Seems a bit weird to be honest, the fact that the Window has displayed means that the App What dictates whether an App has launched? All the Best Dave toggle quoted message Show quoted text Is this a document-based app or a single-window type app?
So I put the code back to instantiate it manually and all works as expected. No matter what I do, -awakeFromNib is always called first. I tried it both in the AppDelegate, and in the ViewController subclass. All the Best Dave? Glad that was the trick! This cannot be undone. Seems pretty pointless to be honest. I too will perform my initialisation in the viewDidLoad method, as everything else that I have tried has failed. Add a comment. The Overflow Blog. Does ES6 make JavaScript frameworks obsolete?
Podcast Do polyglots have an edge when it comes to mastering programming Featured on Meta. Now live: A fully responsive profile. Linked Related 4. Hot Network Questions. Stack Overflow works best with JavaScript enabled.
Accept all cookies Customize settings.
0コメント