单击前景上的推送通知横幅后，如何触发操作

As of now i get the push notifications and displaying the banner when im in both foreground and background states. But though its works fine in the background, when I'm in foreground im unable to trigger an action to open a specific view controller once i click the banner (should open only if i click the banner). How would i do this. My code as bellow As of now i get the push notifications and disp