Ionic 2: How to handle the hardware back button which checks confirmation of Exit in app

Question

I am facing an issue how to handle the default mobile\'s back button which checks the confirmation while exiting from the application, if I pressed the back button there sho

Answer 1

This is my resolved and working Code. Thank you everyone.

constructor(platform: Platform,public alertCtrl: AlertController,public toastCtrl:ToastController) {
    platform.ready().then(()=>{
       platform.registerBackButtonAction(()=>this.myHandlerFunction());
       StatusBar.styleDefault();
      Splashscreen.hide();
})
  }

    myHandlerFunction(){
     let toast = this.toastCtrl.create({
      message: "Press Again to Confirm Exit",
      duration: 3000
    });
    toast.present(); 
     }