Android: Return to previous state when re-opening application

Hi, I’m working on QML application which has several “screens” (splash screen then login then main view, etc..). But when I switch to another application (or android home screen) and switch back to my application, it returns to the splash screen. I assume this is because the entire application is just one android activity, but is there a way to know, through Qt or C code, when the activity is being suspended and resumed? So that I could return to the last state my application was in.