stop watch issue

[rahul107]

when start stopwatch and i remove app from background and again come then stopwatch still running and when click on flag button or play/pause button app crashes and still timer running.

Steps to regenerate this issue:

1> start stopwatch. 2> remove app from background. 3>open app again and go to stopwatch. 4>click on play/pause button or flag button and it will unfortunately crash.