Navigating with parameters in Ionic using navCtrl.push()

Question

Navigating with parameters in Ionic using navCtrl.push()

When calling a method from the home.html file, I have encountered an issue.

(click)="openPage(EventsPage)"

I understand that using this method alone will work:

openPage() {
  this.navCtrl.push(EventsPage)
}

What I want to achieve is to handle different arguments based on what is clicked, while still utilizing only one method to navigate to the selected page. For example:

(click)="openPage(EventsPage)"
(click)="openPage(TimetablePage)"

openPage(page) { 
  this.navCtrl.push(page)
}

I am considering using a switch statement or if statements. However, I prefer to keep it concise within one or two lines of code.

If you have any suggestions or advice, I would greatly appreciate it. Thank you.

javascript angular typescript mobile ionic-framework

Answer 1

Answer №1

If you are new to this project or just exploring, here is a suggestion for you.

When creating new pages, make sure to also create page.module.ts alongside them.

A standard page.module.ts would have the following structure:

import {IonicPageModule} from 'ionic-angular';
import {NgModule} from '@angular/core';
import {YourPage} from './your-page.ts';

@NgModule({
    declarations: [YourPage],
    imports: [IonicPageModule.forChild(YourPage)]
})
export class YourPageModule{}

This is how your-page.ts should look:

import {Component} from '@angular/core';
import {IonicPage} from 'ionic-angular';

@IonicPage()
@Component({
   selector: 'your-page',
   templateUrl: 'your-page.html'
})
export class YourPage{}

Once you have set up everything like this, you can simply pass the string 'YourPage' to the openPage(page) function to navigate to the YourPage component.

Using a string instead of importing the page instance via Ionic's NavController allows lazy-loading (the js-bundle for the page is fetched only when needed, not all at once during startup). This can greatly improve startup time if your app has multiple pages. I recommend checking out the IonicPage documentation as well, it provides useful information on navigation handling.

Answer 2

If you are new to this project or just exploring, here is a suggestion for you.

When creating new pages, make sure to also create page.module.ts alongside them.

A standard page.module.ts would have the following structure:

import {IonicPageModule} from 'ionic-angular';
import {NgModule} from '@angular/core';
import {YourPage} from './your-page.ts';

@NgModule({
    declarations: [YourPage],
    imports: [IonicPageModule.forChild(YourPage)]
})
export class YourPageModule{}

This is how your-page.ts should look:

import {Component} from '@angular/core';
import {IonicPage} from 'ionic-angular';

@IonicPage()
@Component({
   selector: 'your-page',
   templateUrl: 'your-page.html'
})
export class YourPage{}

Once you have set up everything like this, you can simply pass the string 'YourPage' to the openPage(page) function to navigate to the YourPage component.

Using a string instead of importing the page instance via Ionic's NavController allows lazy-loading (the js-bundle for the page is fetched only when needed, not all at once during startup). This can greatly improve startup time if your app has multiple pages. I recommend checking out the IonicPage documentation as well, it provides useful information on navigation handling.

Navigating with parameters in Ionic using navCtrl.push()

Answer №1

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