Lifecycle event no work in app.component.ts

I generate a new project and tried all lifecycle events (ionViewDidLoad …) in app.component.ts but still fail. The events do not fire.

Ionic info:

Cordova CLI: 6.5.0
Ionic Framework Version: 2.2.0
Ionic CLI Version: 2.2.1
Ionic App Lib Version: 2.2.0
Ionic App Scripts Version: 1.1.4
ios-deploy version: 1.9.1
ios-sim version: 5.0.13
OS: macOS Sierra
Node Version: v6.9.5
Xcode version: Xcode 8.2.1 Build version 8C1002

Those events are for Ionic pages (called via setRoot or push in the NavController), from what I know, and won’t work with app.component nor with custom components (sub-components inside pages). You can still use ngOnInit and other Angular events.

See more here: