DB Chooser failing in iOS9 - app not allowed to query for scheme

Ah, sorry - you mean in the app delegate? Hmm, I see where there might be a problem here. I'm trying to discern between Dropbox and Airdrop imports so I'm now wondering if the test I'm using to determine it's Dropbox is valid:

- (BOOL)application:(UIApplication *)app

            openURL:(NSURL *)url

  sourceApplication:(NSString *)source

         annotation:(id)annotation

{

BOOL handled = NO;

DLog(@"source: %@", source);

DLog(@"annotation: %@", annotation);

if ([source isEqualToString:@"com.dropbox"]) {

if ([[DBChooser defaultChooser] handleOpenURL:url]) {

// This was a Chooser response and handleOpenURL automatically ran the

// completion block

handled = YES;

}

} else {

// Otherwise treat as Airdrop

NSString *filename = [url lastPathComponent];

NSString *ext = [filename pathExtension].uppercaseString;

NSDictionary *uInfo = @{AIRDROPPED_FILE_URL_KEY:url, @"filename":filename, @"ext":ext};

NSNotificationCenter *notificationCentre = [NSNotificationCenter defaultCenter];

if ([ext isEqualToString:@"SFPZ"] || [ext isEqualToString:@"FDX"]) {

if ([self.navController visibleViewController] == self.productionsViewController) {

NSNotification *notification = [NSNotification notificationWithName:AIRDROPPED_PRODUCTION_FILE_NOTIFICATION

object:self

  userInfo:uInfo];

[notificationCentre postNotification:notification];

handled = YES;

}

} else if ([ext isEqualToString:@"JSNST"] && [[self.navController visibleViewController] isMemberOfClass:[ZSShotTypeTableVC class]]) {

NSNotification *notification = [NSNotification notificationWithName:AIRDROPPED_SHOTTYPES_FILE_NOTIFICATION

object:self

  userInfo:uInfo];

[notificationCentre postNotification:notification];

handled = YES;

} else if ([ext isEqualToString:@"JSNL"] && [[self.navController visibleViewController] isMemberOfClass:[ZSLensTableVC class]]) {

NSNotification *notification = [NSNotification notificationWithName:AIRDROPPED_LENS_FILE_NOTIFICATION

object:self

  userInfo:uInfo];

[notificationCentre postNotification:notification];

handled = YES;

}

}

    return handled;

}