SetInBackground

var serviceJS = `
function OnStart()
{
    var i = 0;
    setInterval( function() { app.ShowPopup(i++); }, 2000 );
}

function OnMessage( msg)
{
    if( msg == "fg" ) app.SetInForeground( "My Service", "Service is running", "/Sys/Img/Hello.png", "/Sys/Img/Icon.png", "low");
    else if( msg == "bg" ) app.SetInBackground();
}`;

function OnStart()
{
    app.WriteFile( "Service.js", serviceJS );

    lay = app.CreateLayout( "linear", "VCenter,FillXY" );

    tgl = app.CreateToggle( "Foreground", 0.3, 0.1 );
    tgl.SetOnTouch( tgl_OnTouch );
    lay.AddChild( tgl );

    app.AddLayout( lay );

    svc = app.CreateService( "this", "this", OnSvcStart );
}

function tgl_OnTouch( fg )
{
    if( fg ) svc.SendMessage( "fg" );
    else svc.SendMessage( "bg" );
}

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