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!

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