iOS 8 Suggested App icon lock screen

Question

iOS Suggested App feature will show app icon on left bottom corner in iPhone lock screen.

Which delegate method will be called (on UIApplication or I don't know) when clicking on the bottom left app icon ?

Answer 1

The Suggested Apps feature is a list of apps that are popular/relevant to specific locations, managed entirely by Apple.One can request to be added to that list for a specific app.
You can read more about it in this answer to a similar question, where an Apple Tech Support explains it: https://stackoverflow.com/a/26676020/2242359
Sliding up the icon from there will either open the AppStore page of the app or simply launch the app.

The other way to get you app icon to the corner of the lock screen is by using iBeacon - in that way the app must already be installed on the users device and the icon will appear when getting close to the iBeacon device.