Android LifeCycle

1. Foreground (first time)

1.1. onCreate ( )

1.1.1. onStart ( )

1.1.1.1. onResume ( )

1.1.1.1.1. Back Button

1.1.1.1.2. Home Button (Go to Home Screen)

2. Menu Button (App comes to foreground)

2.1. onRestart ( )