applicationDidBecomeActive: Fails to push appropriate view
- (void)applicationDidBecomeActive:(UIApplication *)application
{
    // to check the session
    XTabViewController *XTabViewCon = [[XTabViewController alloc] init];
    [XTabViewCon pushViewUponCheckedSession];
    [XTabViewCon release];
}

- (void)pushViewUponCheckedSession {
    //THIS IS VERY IMPORTANT. IT CHECKS FOR SESSION
    if ([[[ApplicationContext alloc] dataManager ] checkSession]) {
        [self showSessionAliveView];
        //here I can write something that will push a view that was seen last before leaving app to inactive state. May be NSNotification could help me
    }
    else {
        [self showSessionTimeOutView];
    }
}
- (void)showSessionTimeOutView {
    //show activity indi
    waitingIndicator = [[MyWaitingIndicator alloc]init];
    [self.view addSubview:waitingIndicator];
    [waitingIndicator setHidden:YES];
    [waitingIndicator stopAnimating];
    //push session timeout view
    SessionTimeOutViewController *sessionTimeOutView = [[SessionTimeOutViewController alloc] init];
    [[self navigationController] pushViewController:sessionTimeOutView animated:NO];
    [sessionTimeOutView release];
    [waitingIndicator release];
}

- (void)showSessionAliveView {
    SessionAliveView *sessionAliveViewList = [[SessionAliveView alloc] init];
    [[self navigationController] pushViewController:sessionAliveViewList animated:YES];
    [sessionAliveViewList release];
}

- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController {
    //if X Tab is selected then & only then call this method
    if (tabBarController.selectedIndex == 2) {
         [XTabViewCon pushViewUponCheckedSession];
    }

}