invalidate and fire Timer from different view controller is not working - iphone

Question

myTimer is defined in OneViewController and i m trying to invalidate and fire it again from mainviewcontroller but it is not working. What exactly i m missing here.
here is my code
OneViewController.h
#property (nonatomic, strong) NSTimer *myTimer;
OneViewController.m
#synthesize myTimer;
- (void)viewDidLoad
{
[super viewDidLoad];
[self myTimerMethod];}
- (void)myTimerMethod{
NSLog(#"myTimerMethod is Called");
self.myTimer = [NSTimer scheduledTimerWithTimeInterval:2.4
target:self
selector:#selector(updateView:)
userInfo:nil
repeats:YES];
}
- (void)updateView:(NSTimer *)theTimer
{
if (index < [textArray count])
{
self.textView.text = [self.textArray objectAtIndex:index];
self.imageView.image = [self.imagesArray objectAtIndex:index];
index++;
}else{
index = 0;
}
}
MainViewController.h
#class OneViewController;
#property (strong, nonatomic) OneViewController *oneviewcontroller;
MainViewController.m
#synthesize oneviewcontroller = _oneviewcontroller;
-(void)playpauseAction:(id)sender {
if([audioPlayer isPlaying])
{
[sender setImage:[UIImage imageNamed:#"music.png"] forState:UIControlStateNormal];
[audioPlayer pause];
[self.oneviewcontroller.myTimer invalidate];
}else{
[sender setImage:[UIImage imageNamed:#"audiostop.png"] forState:UIControlStateNormal];
[audioPlayer play];
[self.oneviewcontroller.myTimer fire];
if(isFirstTime == YES)
{
self.timer = [NSTimer scheduledTimerWithTimeInterval:06.0
target:self
selector:#selector(displayviewsAction:)
userInfo:nil
repeats:NO];
isFirstTime = NO; } } }
- (void)displayviewsAction:(id)sender{
OneViewController *oneviewcontroller = [[OneViewController alloc] init];
oneviewcontroller.view.frame = CGRectMake(0, 0, 320, 430);
CATransition *transitionAnimation = [CATransition animation];
[transitionAnimation setDuration:1];
[transitionAnimation setType:kCATransitionFade];
[transitionAnimation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn]];
[self.view.layer addAnimation:transitionAnimation forKey:kCATransitionFade];
[self.view addSubview:oneviewcontroller.view];
}
Appreciate help.
Thanks.

Answer 1

You create OneViewController as a local variable of the method displayviewsAction. Not as the property you defined previously.
That's why it's not working, the variable gets released once you exit the method.
Change this line:
OneViewController *oneviewcontroller = [[OneViewController alloc] init];
With this one:
self.oneviewcontroller = [[OneViewController alloc] init];