how to launch and quit application in the background app?

how to launch and quit application in the background app?

BY 04 Apr 2017 Web Application Development

i want to make sleep timer app

 

launch another app and quit by using sleep timer application(running background)

 

is it possible?

 

as fas as i know, launching and ending is only possible with the current application

 

thanks for reading…please help me

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