使用帶有 ObservableArray 的 Repeater 模組（NativeScript Core）

page.xml

<Page xmlns="http://schemas.nativescript.org/tns.xsd" navigatingTo="navigatingTo">
  <Repeater items="{{ myItems }}">
      <Repeater.itemTemplate>
        <Label text="{{ title || 'Downloading...' }}" textWrap="true" class="title" />
      </Repeater.itemTemplate>
  </Repeater>
</Page>

page.ts

import { EventData, Observable } from "data/observable";
import { ObservableArray } from "data/observable-array";
import { Page } from "ui/page";

let viewModel = new Observable();
let myItems = new ObservableArray({title: "Core Concepts"}, {title: "User Interface"}, {title: "Plugins"}, {title: "Cookbook"}, {title: "Tutorials"});

export function navigatingTo(args: EventData) {

    var page = <Page>args.object;
    viewModel.set("myItems", myItems);

    // The Repeater will be updated automatically when new item is pushed.
    myItems.push({title:"Publishing"});

    page.bindingContext = viewModel;
}