I'm stuck in one of my applications and need your help.
So, the app is having a functionality where the user will start timer from the app and unless & until he/she didn't stop, it must be running even if the app is in background or not running in background too.
So, lets say the user starts the timer and after 3minutes the app is terminated, then when user starts the app next time the timer must continue from 3minute onwards.
I'm thinking to use the GCD Timer. So, please help me with this situation.
Thanks in advance