Allow closing a UIActionSheet by tapping above it, in the shaded area

close_actionsheet_above_tap.m

// For detecting taps outside of the alert view
-(void)tapOut:(UIGestureRecognizer *)gestureRecognizer {
	CGPoint p = [gestureRecognizer locationInView:self];
	if (p.y < 0) { // They tapped outside
		[self dismissWithClickedButtonIndex:0 animated:YES];
	}
}

-(void) showFromTabBar:(UITabBar *)view {
	[super showFromTabBar:view];
	
	// Capture taps outside the bounds of this alert view
	UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapOut:)];
	tap.cancelsTouchesInView = NO; // So that legit taps on the table bubble up to the tableview
	[self.superview addGestureRecognizer:tap];
	[tap release];
}