Can't trigger function from NSTimer's selector - ios

Question

So here's my code :
- (IBAction)run:(id)sender {
animationPointer = 0;
self.animationArray = [[NSMutableArray alloc] init];
UIView *allViews = [[UIView alloc]
initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
for (int i = 0; i < [self.paths count]; i++) {
[allViews addSubview:[self createAnimation:[self.paths objectAtIndex:i]]];
[self.animationArray addObject:allViews];
}
timer = [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:#selector(animateTurn)
userInfo:nil repeats:YES];
}
- (void)animateTurn {
UIView *tempView = [self.animationArray objectAtIndex:animationPointer];
[self.view addSubview:tempView];
for (UIImageView *view in tempView.subviews) {
[[tempView.subviews objectAtIndex:animationPointer] startAnimating];
}
animationPointer++;
if (animationPointer >= [self.animationArray count]) {
[timer invalidate];
}
}
createAnimation returns, as you would expect, a fully animated UIImageView. The plan is to have several on each UIView and then animate them all on a UIView then the next after half a second and it repeats. There's only one on each UIView for now.
However, when calling animateTurn on the NSTimer, the animations don't show up.
If I call the method via the normal [self animateTurn] then they appear but nothing with NSTimer nor the performSelector function.
Any help with this (or even suggestions for a better method)?
EDIT:
I should mention the function is actually being triggered and the code is being run including the startAnimating (checked with BOOL/NSLog). There is simply nothing being shown.

Answer 1

This is Your Solution:-
This is what I used and now the selector is Working. :-)
if (![NSThread isMainThread])
{ [self performSelectorOnMainThread:#selector(selectorToRunInMainThread) withObject:nil waitUntilDone:NO];
}
-(void)selectorToRunInMainThread
{
NSString *str = #"Timer event has fired";
NSTimer *atimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:#selector(updateModel:) userInfo:str repeats:YES];
}

Answer 2

Include this line after your timer:-
[timer fire];