Question

我在实现共享SideDrawer时遇到问题。我正在关注这篇文章https://www.nativescript.org/blog/a-deep-dive-into-telerik-ui-for-nativescripts-sidedrawer

主页XML：

<Page 
  xmlns="http://schemas.nativescript.org/tns.xsd" 
  xmlns:sd="nativescript-telerik-ui/sidedrawer" loaded="pageLoaded">
  <Page.actionBar>
    <ActionBar class="action-bar" title="Manu">
      <android>
        <NavigationButton icon="res://ic_menu" tap="toggleDrawer" />
      </android>
      <ios>
        <ActionItem icon="res://ic_menu" ios.position="left" tap="toggleDrawer" />
      </ios>
    </ActionBar>
  </Page.actionBar>
  <sd:RadSideDrawer id="sideDrawer">
    <sd:RadSideDrawer.drawerContent 
      xmlns:Drawer="Views/SideDrawerView">
      <Drawer:SideDrawerView />
    </sd:RadSideDrawer.drawerContent>
  </sd:RadSideDrawer>
  <StackLayout>
    <Label text="{{ sync }}" />
  </StackLayout>
</Page>

主页代码隐藏：

import { EventData } from 'data/observable';
import { Page } from 'ui/page';
import { MainViewModel } from '../../ViewModels/MainViewModel';

let frameModule = require("ui/frame");
let view = require("ui/core/view");
let page: Page;

export function pageLoaded(args: EventData) {
    page = <Page>args.object;
    page.bindingContext = new MainViewModel();    
}

export function toggleDrawer () {
    let drawer: any = view.getViewById(page, "sideDrawer");
    drawer.toggleDrawerState();
};

SideDrawer XML：

<StackLayout class="sidedrawer-left" loaded="drawerViewLoaded">
    <StackLayout class="sidedrawer-header">
        <Label text="Hello RadSideDrawer!" class="sidedrawer-header-brand" />
    </StackLayout>
    <StackLayout class="sidedrawer-content">
        <Label text="QrScanner" class="sidedrawer-list-item-text" tap="qrScan" />
        <Label text="New Item" class="sidedrawer-list-item-text" tap="nItem" />
        <Label text="Edit Item" class="sidedrawer-list-item-text" tap="eItem" />
        <Label text="Users" class="sidedrawer-list-item-text" tap="openUsers" />
        <Label text="Map" class="sidedrawer-list-item-text" tap="map" />
    </StackLayout>
</StackLayout>

所以，当我实际点击并调用toggleDrawer函数

时

export function toggleDrawer () {
    let drawer: any = view.getViewById(page, "sideDrawer");
    drawer.toggleDrawerState();
};

它说抽屉未定义。可能有什么不对？

Answer 1

尝试这种方式:)因为您有点击事件，您可以在toggleDrawer和args内点击事件数据获取点击对象的page，您可以从中访问sideDrawer控制或使用frameModule的{{1}}功能

topmost()

Answer 2

我通过在Page元素中声明自定义组件来解决了这个问题，而不是sd：RadSideDrawer.drawerContent。

<Page 
  xmlns="http://schemas.nativescript.org/tns.xsd" 
  xmlns:sd="nativescript-telerik-ui/sidedrawer" 
  xmlns:Drawer="Views/SideDrawerView" loaded="pageLoaded">

Nativescript RadSideDrawer未定义

2 个答案: