iOS fading animation for multiple objects - ios

Question

I have an iOS app in which every time the view is loaded, all of the objects in the view quickly fade in.
In my code, I have a
- (void)fadeInEverything
function, and within this function, I call five different functions, with an NSTimer on each of them, so that the objects fade in sequentially, like this:
[self fadeInLabel];
[NSTimer scheduledTimerWithTimeInterval:0.2
target:self
selector:#selector(fadeInTextField)
userInfo:nil
repeats:NO];
[NSTimer scheduledTimerWithTimeInterval:0.4
target:self
selector:#selector(fadeInButton)
userInfo:nil
repeats:NO];
[NSTimer scheduledTimerWithTimeInterval:0.6
target:self
selector:#selector(fadeInTextView)
userInfo:nil
repeats:NO];
[NSTimer scheduledTimerWithTimeInterval:0.8
target:self
selector:#selector(fadeInFlipsideViewButton)
userInfo:nil
repeats:NO];
I have a function that looks like this for each object:
- (void)fadeInTextView
{
[resultView setAlpha:0];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1];
[resultView setAlpha:1];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(animationDidStop:finished:context:)];
[UIView commitAnimations];
}
My question is, would there we a way to make one function that would take a parameter (the object) and fade it in, so I don't have to have five almost identical functions? It would save me a lot of space and clutter.

Answer 1

You could pass your object by reference to accomplish that:
-(void)fadeInView:(UIView **)aView { // the ** indicates that this method is expecting a reference
// your fading code
// this works, because all view's (UILabels, UITextFields etc. inherit UIView.
}
And the calling method could look like this:
-(void)callFader {
[self fadeInView:&mytextView]; // make sure to put the & before the variable so that it's sent as a reference
// and more fadeInView calls...
}