Dismiss UIActionSheet from AppDelegate - iphone

Question

In my view, I have an actionsheet that may be presented from a UIBarButton (iPad). If user goes to homescreen and back, app shows a lock screen wehre user must enter password for security. But if the popover wasn't dismised before going into background, it is still showing on top of lockscreen. The UIActionSheet is a property of that VC, not the App Delegate.
The method in my delegate is:
- (void)applicationDidBecomeActive:(UIApplication *)application
{
NSLog(#"STATUS - Application did become active");
[[UIAccelerometer sharedAccelerometer] setDelegate:nil];
[_notActiveTimer invalidate];
_notActiveTimer = nil;
[[NSNotificationCenter defaultCenter] postNotificationName:#"_application_background" object:self userInfo:NULL];
LockScreen *vc = [[[LockScreen alloc] initWithNibName:#"LockScreen" bundle:nil] autorelease];
vc.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
vc.showFullUsernamePasswordLogin = TRUE;
[self.splitView presentModalViewController:vc animated: YES];
}
Code:
- (IBAction)showeRXActionSheet:(id)sender
{
if (self.actionSheet != nil) {
[self.actionSheet dismissWithClickedButtonIndex:0 animated:NO];
}
if (!self.eRXActionSheet)
{
UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:#"eRX Menu" delegate:self cancelButtonTitle:#"Cancel" destructiveButtonTitle:nil otherButtonTitles:#"New eRX", #"eRX Refills", nil];
sheet.actionSheetStyle = UIActionSheetStyleBlackOpaque;
self.eRXActionSheet = sheet;
[sheet release];
[self.eRXActionSheet showFromBarButtonItem:sender animated:YES];
return;
}
[self.eRXActionSheet dismissWithClickedButtonIndex:self.eRXActionSheet.cancelButtonIndex animated:YES];
self.eRXActionSheet = nil;
}
- (IBAction)actionButtonClicked:(id)sender
{
if (self.eRXActionSheet != nil) {
[self.eRXActionSheet dismissWithClickedButtonIndex:0 animated:NO];
}
if (!self.actionSheet)
{
UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:#"Action Menu" delegate:self cancelButtonTitle:#"Cancel" destructiveButtonTitle:nil otherButtonTitles:#"Help", #"Lock", #"Log Out", nil];
sheet.actionSheetStyle = UIActionSheetStyleBlackOpaque;
self.actionSheet = sheet;
[sheet release];
[self.actionSheet showFromBarButtonItem:sender animated:YES];
return;
}
[self.actionSheet dismissWithClickedButtonIndex:self.actionSheet.cancelButtonIndex animated:YES];
self.actionSheet = nil;
}
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (actionSheet == self.eRXActionSheet)
{
if (buttonIndex == 0)
{
[self erxButtonClicked];
}
else if (buttonIndex == 1)
{
[self erxRefillButtonClicked];
}
}
else
{
if (buttonIndex == 0)
{
[self helpButtonClicked];
}
else if (buttonIndex == 1)
{
[self lockButtonClicked];
}
else if (buttonIndex == 2)
{
[self logOut];
}
}
}
- (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex
{
self.eRXActionSheet = nil;
self.actionSheet = nil;
}

Answer 1

This should do what you want.
-(void)dismissSheet{
if (self.actionSheet){
[self.actionSheet dismissWithClickedButtonIndex:0 animated:NO];
}
}
-(void)viewDidLoad{
[super viewDidLoad];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(dismissSheet) name:UIApplicationWillResignActiveNotification object:nil];
// Your other setup code
}
you could also use the UIApplicationDidEnterBackgroundNotification, what ever makes sense for you application flow.
remember to remove observer in dealloc.