- (void) showCustomActivityView {
    if (activityView && [activityView isAnimating] == YES) {
        [activityView stopAnimating];
        [activityView removeFromSuperview];
        [activityView release];
        activityView = nil;

        return;
    }

    UIImage *statusImage = [UIImage imageNamed:@"A-status1.png"];
    UIImageView *activityView = [[UIImageView alloc] initWithImage:statusImage];
    activityView.frame = CGRectMake(self.view.size.width/2 - statusImage.size.width/2,
                                    self.view.size.height/2 - statusImage.size.height/2,
                                    statusImage.size.width,
                                    statusImage.size.height);

    activityView.animationImages = [NSArray arrayWithObjects:
                                    TTIMAGE(@"bundle://A-status2.png"),
                                    TTIMAGE(@"bundle://A-status3.png"),
                                    TTIMAGE(@"bundle://A-status4.png"),
                                    TTIMAGE(@"bundle://A-status5.png"),
                                    TTIMAGE(@"bundle://A-status6.png"),
                                    TTIMAGE(@"bundle://A-status5.png"),
                                    TTIMAGE(@"bundle://A-status4.png"),
                                    TTIMAGE(@"bundle://A-status3.png"),
                                    nil];

    activityView.animationDuration = 0.9;
    [activityView startAnimating];
    [self.view addSubview:activityView];
}