startapp.start callback methods not working in Ionic 3

[pravinCignex]

Hello lampa,

i am trying to open external app with some callback activity. so for that below is my code.

this.appStarter = (window as any).startApp.set({ "application": appId });

this.appStarter.start(function (){
    alert("Success Callback");// any other code also not working here.
}, function(){
    alert("Error Callback");// any other code also not working here.
}); 

In Above code success callback and error callback are not working in both method startApp.check() and startApp.start()
Note: external app is opening successfully.

Is there any other way to execute callback methods?

[lampaa]

@pravinCignex Hi!. alert() not working in cordova, but callbacks should work exactly, check via console.log()