objective c - ios push notifications to a specific view controller -


my app receives remote push notifications , upon receiving them, take specific view controller(pretty time). have seen code (on didreceiveremotenotification). using storyboard apps.

    uiviewcontroller *vc = self.window.rootviewcontroller;     pushviewcontroller *pvc = [vc.storyboard instantiateviewcontrollerwithidentifier:@"someid"];     [vc presentviewcontroller:pvc animated:yes completion:nil];

this seems straightforward enough. have impact on memory allocation, looks every time push notification arrives, instantiating new view controller. best practice?

you can try like:

    pushviewcontroller *vc = [self.storyboard instantiateviewcontrollerwithidentifier:@"someid"];     [[uiapplication sharedapplication].keywindow.rootviewcontroller presentviewcontroller:vc animated:yes completion:nil];

you dont need allocate uiviewcontroller rootview everytime unless want have uiviewcontroller present pushvc.

if doing in app delegate, storyboard reference by:

  uistoryboard *test=[uistoryboard storyboardwithname:@"name" bundle:nil];

and call

  [test instantiateviewcontrollerwithidentifier.....

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