Simple HUD View for iOS

HudView.m

#import "HudView.h"

@implementation HudView {

}

+ (HudView *)hudInView:(UIView *)view animated:(BOOL)animated {

    HudView *hudView = [[HudView alloc] initWithFrame:view.bounds];
    hudView.opaque = NO;

    [view addSubview:hudView];
    view.userInteractionEnabled = NO;

    [hudView showAnimated:animated];
    return hudView;
}

- (void)showAnimated:(BOOL)animated {
    if (animated) {

        self.alpha = 0.0f;
        self.transform = CGAffineTransformMakeScale(1.3f, 1.3f);

        [UIView beginAnimations:nil context:NULL];
        [UIView setAnimationDuration:0.3];

        self.alpha = 1.0;
        self.transform = CGAffineTransformMakeScale(1.0f, 1.0f);

        [UIView commitAnimations];
    }
}

- (void)drawRect:(CGRect)rect {
    const CGFloat boxHeight = 96.0f;
    const CGFloat boxWidth = 96.0f;

    // uses the roundf() function to make sure the rectangle doesn’t end up on fractional pixel
    // boundaries because that makes the image look fuzzy.
    CGRect boxRect = CGRectMake(
            roundf(self.bounds.size.width - boxWidth) / 2.0f,
            roundf(self.bounds.size.height - boxHeight) / 2.0f,
            boxWidth,
            boxHeight
    );

    UIBezierPath *roundRect = [UIBezierPath bezierPathWithRoundedRect:boxRect cornerRadius:10.0f];
    [[UIColor colorWithWhite:0.0f alpha:0.75f] setFill];
    [roundRect fill];

    UIImage *image = [UIImage imageNamed:@"Checkmark"];

    CGPoint imagePoint = CGPointMake(
            self.center.x - roundf(image.size.width / 2.0f),
            self.center.y - roundf(image.size.height / 2.0f) - boxHeight / 8.0f);

    [image drawAtPoint:imagePoint];

    [[UIColor whiteColor] set];
    UIFont *font = [UIFont boldSystemFontOfSize:16.0f];
    CGSize textSize = [self.text sizeWithFont:font];

    CGPoint textPoint = CGPointMake(
            self.center.x - roundf(textSize.width / 2.0f),
            self.center.y - roundf(textSize.height / 2.0f) + boxHeight / 4.0f);

    [self.text drawAtPoint:textPoint withFont:font];
}

@end

SomeController.m

...

- (IBAction)done:(id)sender {

    HudView *hudView = [HudView hudInView:self.navigationController.view animated:YES];
    hudView.text = @"Tagged";

    [self performSelector:@selector(closeScreen) withObject:nil afterDelay:0.6];
}

...