My registerBackButtonAction callback is never called

@Ptrahan wrote:

Hello,

I have an Ionic 2.2 project where I override the default behavior of the back button using platform.registerBackButtonAction(). But something strange happened because it used to work but now the callback never gets called and the app just exits. I do the following in the app.components.ts file:

import { Component } from '@angular/core';
import { Platform } from 'ionic-angular';
import { StatusBar, Splashscreen } from 'ionic-native';
import { TabsPage } from '../pages/tabs/tabs';

@Component({
  templateUrl: 'app.html'
})
export class MyApp {
  rootPage = TabsPage;

  constructor(platform: Platform) {
    platform.ready().then(() => {
      // Okay, so the platform is ready and our plugins are available.
      // Here you can do any higher level native things you might need.
      StatusBar.styleDefault();
      Splashscreen.hide();

      platform.registerBackButtonAction(() => {

          console.log("Backbutton pressed.");

      }, 100);

    });
  }
}

The same code works in a vanilla starter app. I have debugged the register function and I see that my callback is added to the Platform backbutton callbacks array normally.

I also tried with different priority levels with no luck.

This is so annoying, I spent days trying to figure out what is wrong. I did the usual re-install of the node modules and platform etc. I also tried going back to cordova 6, but it is not that.

My setup is:

@ionic/cli-plugin-cordova       : 1.6.2
@ionic/cli-plugin-ionic-angular : 1.4.1
@ionic/cli-utils                : 1.7.0
ionic (Ionic CLI)               : 3.7.0
Cordova CLI : 7.0.1
@ionic/app-scripts : 1.1.4
Cordova Platforms  : android 6.2.3
Ionic Framework    : ionic-angular 2.2.0

Android SDK Tools : 26.0.2
Node              : v6.11.2
OS                : Windows 7
npm               : 5.3.0

What could be causing this ?

Posts: 1

Participants: 1

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