Safari mobile and iOS app fail to activate lifecycle hooks as expected

Encountering an issue with lifecycle hooks not functioning properly in Safari mobile and iOS app.

NgOnInit and ionViewDidLoad, along with other lifecycle hooks, are working on desktop and Android platforms but not on the iOS side, even when visiting the page for the first time.

Oddly enough, tapping/clicking anywhere on the screen triggers everything to load as desired.

Additionally, upon navigating to the page again or reloading it, all content appears as intended.

Any suggestions? No errors are being reported.

The task involves fetching data from Back4App's database and displaying it upon page opening.

TypeScript

  ngOnInit() {
  this.unhide();
  }

unhide() {
this.news.get("deEygHXCR9").then((gameScore) => {
    this.memberList = gameScore.get("announcements");
  }, (error) => {
  });
}

HTML

<ion-item class="backColor2">
      <ion-textarea class="textAreaHeight" readonly="true" auto-grow="true" type="text" name="memberList" [(ngModel)]="memberList"></ion-textarea>
      </ion-item>

As mentioned, everything works fine on Android and Chrome. Any recommendations for fixes or alternative approaches? Using Ionic 5 and Angular 8.

angulartypescriptionic5

Answer №1

Although I may not have a lot of experience in programming, I was able to identify the issue eventually. It turned out that the problem was not related to the lifecycle hooks as initially suspected. It was actually caused by how I was displaying data from a third-party source. In order for my screen to update properly using ngmodel after fetching the data, I discovered that I needed to run it inside an NgZone, like so...

import {  NgZone } from '@angular/core';

constructor(
public ngZone: NgZone,
) {}

async unhide() {
this.news.get("deEygHXCR9").then((gameScore) => {
this.ngZone.run(() => {
    this.memberList = gameScore.get("announcements");
});
}, (error) => {
});
}

I appreciate everyone who took the time to assist me with this issue!

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