Creating shortcut for the app crashes on previous version - ios

Question

I've created a shortcutItem in an App and when i run in ios 9.2 it works fine. But when I open the app which has ios 8.1 it crashes.
Thread 1:EXC_BAD_ACCESS (code=1, address=0x0)
How is the shortcutItem are created say if i create shortcutItem icon and title dynamically after (launchOption == nil) return YES Does the phone shows shortcutItems then?(because createShortcutItem is not called it should not show is what i think.) Will i be able to open shortcutItem once I opened the app is opened and minimized even though the shortcutItems and icons are not called in didFinishLaunchingwithoptions.
Am getting crashes in ios 8.1 at this line
shortcutItem = [launchOptions objectForKeyedSubscript:UIApplicationLaunchOptionsShortcutItemKey];
So i am returning if launchOptions == nil to fix the crash.
Below is the code am using in my app for using shortcut. Its created in my main app so I've modified names a little bit as an example.
How do i handle the shortcut which are not supported on early iOS ( from 8.0) or devices. I want my app to support both ios8 and greater versions.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
BOOL shouldPerformAdditionalDelegateHandling = YES;
// Shortcut creation and methods
[[MyAppShortcuts instance] createShortcutItem];
if (launchOptions == nil) {
return shouldPerformAdditionalDelegateHandling;
}
UIApplicationShortcutItem *shortcutItem;
shortcutItem = [launchOptions objectForKeyedSubscript:UIApplicationLaunchOptionsShortcutItemKey];
if ( shortcutItem != nil ){
// Open app from shortcut
self.rootViewCtrl_.shortcutItem_ = shortcutItem;
[[MyAppShortcuts instance] setMyAppShortcutIs:shortcutItem.type];
[[MyAppShortcuts instance] setAppLaunchedWithShortcut:YES];
// This will block "performActionForShortcutItem:completionHandler" from being called.
shouldPerformAdditionalDelegateHandling = NO;
}
return shouldPerformAdditionalDelegateHandling;
}
- (void) createShortcutItem {
UIApplicationShortcutIcon* firstIcon = [UIApplicationShortcutIcon iconWithTemplateImageName:#"shortcutFirstItem"];
UIApplicationShortcutItem* firstItem;
firstItem = [[UIApplicationShortcutItem alloc]initWithType: firstItemType
localizedTitle: NSLocalizedString(#"First Item", nil)
localizedSubtitle: nil
icon: firstIcon
userInfo: nil];
//..... creating 2nd 3rd 4th item
[UIApplication sharedApplication].shortcutItems = #[firstItem, secondItem, thirdItem, fourthItem];
}
application:performActionForShortcutItem: method is called everytime when the app is opened using shortcut. If i create shortcutItems(icon, title and type) inside the method it calls everytime, does that affect opening shortcut in any way because creating items again and again?
- (void) application:(UIApplication *)application performActionForShortcutItem:(UIApplicationShortcutItem *)shortcutItem completionHandler:(void (^)(BOOL))completionHandler
{
// Shortcut creation and methods
[ [ MyAppShortcuts instance ] createShortcutItem ];
[[FinAppShortcuts instance] handleShortCut:shortcutItem ];
}

Answer 1

You should place all logic regarding shortcut items after checking if it's available (iOS 9.1 onwards). I don't think launchOptions is nil for instances where it's not invoked by tapping the shortcut.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
BOOL shouldPerformAdditionalDelegateHandling = YES;
//checks if you could user shortcut items. only available in iOS 9.1 onwards
if ([UIApplicationShortcutItem class]){
// Shortcut creation and methods
[[MyAppShortcuts instance] createShortcutItem];
if (launchOptions[UIApplicationLaunchOptionsShortcutItemKey]){
// Open app from shortcut
self.rootViewCtrl_.shortcutItem_ = shortcutItem;
[[MyAppShortcuts instance] setMyAppShortcutIs:shortcutItem.type];
[[MyAppShortcuts instance] setAppLaunchedWithShortcut:YES];
// This will block "performActionForShortcutItem:completionHandler" from being called.
shouldPerformAdditionalDelegateHandling = NO;
}
}
return shouldPerformAdditionalDelegateHandling;
}