Effortless implementation of list loading with images and text in the Ionic 2 framework

Can someone provide guidance on creating a lazy loading list with both images and text? I understand that each image in the list will require a separate http request to download from the server. Should caching be implemented for these image downloads? Additionally, could someone share a sample of how to implement a lazy loading list in Ionic2?

Thank you!

Answer №1

Check out this example code for a dynamic list

<ion-list no-lines [virtualScroll]="partnerArray">
<ion-item-sliding *virtualItem="let item; let i=index">
  <ion-item (click)="view(i)">
    <ion-avatar item-start>
      <ion-img class="image" src="data:image/*;base64,{{item.imageUrl}}" style="height: 50px; width: 50px"></ion-img>
    </ion-avatar>
    <h2>{{item.name}}</h2>
    <p>{{item.email}}</p>
  </ion-item>
  <ion-item-options>
    <button ion-button color="danger" (click)="delete(i)">
      Delete
    </button>
  </ion-item-options>
</ion-item-sliding>

And in the corresponding .ts file

private partnerArray: Array<{
id: number
imageUrl: string,
name: string,
email: string
}> = []

 this.odooRpc.searchRead(this.partner,
 this.domain, this.fields, this.limit, this.offset,
 this.sort).then((partner: any) => {
   let json = JSON.parse(partners._body)["result"].records;
   for (let i in json) {
   this.partnerArray.push({
   id: json[i].id,
   imageUrl: json[i].image_small == false ? "N/A":json[i].image_small ,
   name: json[i].name == false ? "N/A" : json[i].name,
   email: json[i].email == false ? "N/A" : json[i].email
 })

}
})

This snippet is tailored for an odoo server integration where records are fetched dynamically from the server. Hope you find it useful!

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Leveraging CustomPipe with ngModel in Angular 7 and beyond

In my application, I am facing an issue with a date calendar picker input that is storing dates on a server and returning them onInit. The problem arises when the date is not stored or picked, as it returns 01/01/0001 numbers. My goal is to have the input ...

Recommendations for organizing code with respect to models in Angular using TypeScript

Within my C# backend, I structure my entities and entity lists using classes. Any needed functions or methods are simply added to the corresponding class. On the contrary, in Angular/TypeScript examples, models are typically defined as interfaces. This ra ...

If a task is currently ongoing, be sure to subscribe to it; otherwise, restart it

If I have a long-running observable called longObservable, which emits a new string once after 5 seconds and then completes. longObservable(): Subject<string> { return timer(5000).pipe{ map(() => randomString()) } } Other pages c ...

Having difficulty sending a message from an AngularJS application to an Angular 10 application through an iframe

I have two applications running locally - one is an AngularJS application and the other is an Angular 10 application. I am trying to access a page from the Angular 10 application using an iframe and send a message to it from the AngularJS application. How ...

Exploring Angular2's DOMContentLoaded Event and Lifecycle Hook

Currently, I am utilizing Angular 2 (TS) and in need of some assistance: constructor(public element:ElementRef){} ngOnInit(){ this.DOMready() } DOMready() { if (this.element) { let testPosition = this.elemen ...

Is it possible to create an observable with RXJS that emits only when the number of items currently emitted by the source observables matches?

I am dealing with two observables, obs1 and obs2, that continuously emit items without completing. I anticipate that both of them will emit the same number of items over time, but I cannot predict which one will emit first. I am in need of an observable th ...

The attribute 'forEach' is not recognized on the data type 'string | string[]'

I'm experiencing an issue with the following code snippet: @Where( ['owner', 'Manager', 'Email', 'productEmail', 'Region'], (keys: string[], values: unknown) => { const query = {}; ...

Leveraging a returned value from a function in Typescript within a React component

I am currently facing a challenge where I need to extract values from a Typescript function and use them to dynamically render a React page. Specifically, the two values I am working with are the outputs of getIcon() and getSpaces(). This is how I attempt ...

MikroORM - Conditional join without foreign key constraints on the ID

I came across a rather peculiar database schema that includes a jsonb field with userId and userType attributes, along with two different user tables for distinct user types. The selection of the table to join based on the userType is crucial. Although I ...

I must find a solution for implementing the nullish-coalescing operator and optional chaining

Recently, I upgraded my angular application to version 15 and now need to ensure it works properly in Chrome 69. However, when testing in Chrome 69, I encountered 2 errors related to optional chaining and nullish coalescing operators. I am looking for gui ...

Encountering an issue when retrieving the value from a template-driven Angular form

Encountering an issue in the register function regarding storing the form control value. When using "let firstname", "let lastname", and "let email", I am receiving the error [tslint] Identifier 'firstName' is never reassigned; use 'const&a ...

Issue with Typescript flow analysis when using a dictionary of functions with type dependency on the key

I am utilizing TypeScript version 4.6 Within my project, there exists a type named FooterFormElement, which contains a discriminant property labeled as type type FooterFormElement = {type:"number",...}|{type:"button",...}; To create instances of these el ...

Struggling to retrieve service information for implementation in the component

I am currently working on a project where: 1. I have created a news.service.ts service file with the following code: 2. Within the service, I have implemented a function named throwData() that returns the service data. Here is the code snippet: im ...

Is it possible to develop a C equivalent of the typescript Record type?

Is there a way to create a record type equivalent in C like what can be done in TypeScript, and add attributes during runtime? I am aiming to replicate the following: const familyData: string[] = ["paul", "em", "matthias", "kevin"]; const myFamily: Record ...

Refreshing the Mat Dialog content when removing items in Angular Material

I have successfully implemented a mat dialog table with 3 columns - name, email, and delete icon. When the user clicks on the delete icon, it prompts a confirmation message to confirm the deletion. Upon confirming, the item is removed from the database. Ho ...

Issue with Angular: Mobile view toggle button in the navbar is unresponsive

While the dropdowns are functioning correctly in web mode, the navbar toggle isn't working as expected in small screens or mobile mode. I've been trying to figure out the issue by referring to code from CodePen that I am learning from. Despite i ...

Mysterious issue arises during deployment of Typescript-React application on Heroku

I am working on a TypeScript-React application generated using create-react-app. Deploying it to Heroku is proving to be a challenge as the process fails with an error message during installation and build: remote: Creating an optimized production b ...

Is there a mistake in how I am creating this TypeScript object?

After selecting an item from a dropdown menu, I want to remove the select element and display the selected item in an ag-grid. Although the row is added to the grid successfully, the name/id properties do not appear correctly and the select element remains ...

The latest version of npm packages is not displayed when you hover over them in Visual Studio Code

Previously in package.json, I was able to check the latest versions of packages by hovering over each package version as a "tooltip", but that feature seems to have disappeared now. I am using VSC version 1.19.2. I am navigating through a proxy. I ha ...

Utilizing commonjs in Rollup configuration

Currently, I am tackling a project in Angular2. After going through the Angular2 aot documents, I successfully generated ngFactory files by utilizing rollup js as recommended. However, I encountered some npm packages that are non-es6. To load these non-es6 ...