detect when activity is currently visible or opened...

0xNull

im building and app that play audio on device but had two plans. premium and regular, basically premium allow you listen music with app closed on background but i dont know how detect when app is closed or isn't visible, when you close app, this still playing audio on device... only found a way to detect when user press back button with this:

Connections {
       target: Qt.application

       onAboutToQuit: {
          console.log("back_button_pressed");
           audioPlayer.stop()
       }
    }

but if the user close the app with button to see apps running, the app still playing audio.

so... is there a way to detect when app is closed or isn't visible, something that can help me detecting when user close the app.

sierdzio

I think this thread has a fitting answer to your issue: https://forum.qt.io/topic/58483/solved-detect-when-app-is-sent-to-backround-on-android/2