Ionic lifecycle

ionViewWillEnter()	// Fired when the component routing to is about to animate into view.
ionViewDidEnter()	// Fired when the component routing to has finished animating.
ionViewWillLeave()	// Fired when the component routing from is about to animate.
ionViewDidLeave()	// Fired when the component routing to has finished animating.

Source: ionicframework.com

Ionviewwillenter in ionic 5

ngAfterViewInit()

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