Recording view duration as a property in KISSmetrics iOS SDK v2

gistfile1.txt

//In your ViewControllers: (Replace "someViewDuration" with an appropriate name for each view)


NSTimeInterval appearedAtTime;

- (void)viewWillAppear:(BOOL)animated {
	appearedAtTime = [[NSDate date] timeIntervalSince1970];
}

- (void)viewWillDisappear:(BOOL)animated {
	int duration = (int)round([[NSDate date] timeIntervalSince1970] - appearedAtTime);
	[[KISSmetricsAPI sharedAPI] set:@{@"someViewDuration" : @(duration)}];
}