objective-c : handleFirstTime

snippet.m

//handleFirstTime

//in DataModel.m

- (void)registerDefaults {
	NSDictionary *dictionary = @{ 
		@"ChecklistIndex" : @-1, 
		@"FirstTime" : @YES
	};

	[[NSUserDefaults standardUserDefaults] registerDefaults:dictionary];
}

- (void)handleFirstTime {
	BOOL firstTime = [[NSUserDefaults standardUserDefaults] boolForKey:@"FirstTime"];

	if (firstTime) {
		Checklist *checklist = [[Checklist alloc] init];
		checklist.name = @"List"; 
		[self.lists addObject:checklist];
		[self setIndexOfSelectedChecklist:0];

		[[NSUserDefaults standardUserDefaults] setBool:NO forKey:@"FirstTime"];
	} 
}

//call method

- (id)init {
	if ((self = [super init])) { 
		[self registerDefaults]; 
		[self handleFirstTime];
	}

	return self; 
}