When is application didfinishlaunchingwithoptions called

Python Javascript Linux Cheat sheet Contact. When is applicationDidBecomeActive called? Active - The app is running in the foreground, and receiving events. Background - The app is running in the background, and executing code. Suspended - The app is in the background, but no code is being executed. The seven most important application delegate methods The operating system calls specific methods within the application delegate to facilitate transitioning to and from various states. The seven most important application delegate methods a developer should handle are: application:willFinishLaunchingWithOptions Method called when the launch process is initiated.

Tags: Ios. Apple - How do I determine the version of Bluetooth my iPhone supports? Apple - Is there a way to set an alarm for sunrise, whenever that may be?

Apple - How much storage does iOS 12 require? Pandas how to find column contains a certain value Recommended way to install multiple Python versions on Ubuntu This scenarios described in Launch Options Keys. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.

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From Apple If you start this service and your app is subsequently terminated, the system automatically relaunches the app into the background if a new event arrives. AsifNoor i. AsifNoor 5 5 silver badges 14 14 bronze badges.

Creating substrings isn't expensive on modern browsers; it may well have been in when this answer was posted. These days, the simple this.

I know this is a year old question Also, if you don't like stuffing things in native data structure's prototypes, here's a standalone version:. EDIT: As noted by hamish in the comments, if you want to err on the safe side and check if an implementation has already been provided, you can just adds a typeof check like so:. Even if you develop your application using iPhone SDK 4 and later, you must still be prepared for your application to be terminated. If memory becomes constrained, the system might remove applications from memory in order to make more room.

If your application is currently suspended, the system removes your application from memory without any notice. However, if your application is currently running in the background, the system does call the applicationWillTerminate: method of the application delegate. Your application cannot request additional background execution time from this method. So yes, applicationWillTerminate: will generally not be called very often in iOS 4.