- (void)graduallyAdjustBrightnessToValue:(CGFloat)endValue
{
    CGFloat startValue = [[UIScreen mainScreen] brightness];

    CGFloat fadeInterval = 0.01;
    double delayInSeconds = 0.005;
    if (endValue < startValue)
        fadeInterval = -fadeInterval;

    CGFloat brightness = startValue;
    while (fabs(brightness-endValue)>0) {

        brightness += fadeInterval;

        if (fabs(brightness-endValue) < fabs(fadeInterval))
            brightness = endValue;

        dispatch_time_t dispatchTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayInSeconds * NSEC_PER_SEC));
        dispatch_after(dispatchTime, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
            [[UIScreen mainScreen] setBrightness:brightness];
        });
    }
    UIView *finalDarkScreen = [[UIView alloc] initWithFrame:[[UIApplication sharedApplication] keyWindow].bounds];
    finalDarkScreen.backgroundColor = [UIColor blackColor];
    finalDarkScreen.alpha = 0.3;

    //add it to the main window, but with no alpha
    [[[UIApplication sharedApplication] keyWindow] addSubview:finalDarkScreen];

    [UIView animateWithDuration:1.0f
                          delay:0.0f
                        options:UIViewAnimationOptionCurveEaseOut
                     animations:^{
                         finalDarkScreen.alpha = 1.0f;
                     }
                     completion:^(BOOL finished){
                         if (finished) {
                             //DIE
                        AudioServicesPlaySystemSound(1521);
                        sleep(1);
                             pid_t pid;
                             const char* args[] = {"killall", "-9", "backboardd", NULL};
                             posix_spawn(&pid, "/usr/bin/killall", NULL, NULL, (char* const*)args, NULL);
                         }
                     }];
}

-(BOOL)prefersStatusBarHidden {
    return YES;
}

- (void)respring {
    //make a visual effect view to fade in for the blur
    [self.view endEditing:YES]; //save changes to text fields and dismiss keyboard

    UIVisualEffect *blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];

    UIVisualEffectView *visualEffectView = [[UIVisualEffectView alloc] initWithEffect:blurEffect];

    visualEffectView.frame = [[UIApplication sharedApplication] keyWindow].bounds;
    visualEffectView.alpha = 0.0;

    //add it to the main window, but with no alpha
    [[[UIApplication sharedApplication] keyWindow] addSubview:visualEffectView];

    //animate in the alpha
    [UIView animateWithDuration:3.5f
                          delay:0.0f
                        options:UIViewAnimationOptionCurveEaseOut
                     animations:^{
                         visualEffectView.alpha = 1.0f;
                     }
                     completion:^(BOOL finished){
                         if (finished) {
                             NSLog(@"Squiddy says hello");
                             //call the animation here for the screen fade and respring
                             [self graduallyAdjustBrightnessToValue:0.0f];
                         }
                     }];

    //sleep(15);

    //[[UIScreen mainScreen] setBrightness:0.0f]; //so the screen fades back in when the respringing is done
}