如何在原生脚本angular2中获取RadSideDrawer中的本机控件？

import { Component, ViewChild, ElementRef } from "@angular/core";
import { RadSideDrawerComponent } from "nativescript-ui-sidedrawer/angular";

@Component({
    selector: "app",
    template: `
        <RadSideDrawer #drawer>
            <!-- 内容 -->
        </RadSideDrawer>
    `
})
export class AppComponent {
    @ViewChild("drawer", { static: false }) drawerComponent: RadSideDrawerComponent;
    private drawer: RadSideDrawer;

    ngAfterViewInit() {
        this.drawer = this.drawerComponent.sideDrawer;
    }

    // 在这里可以使用this.drawer来访问RadSideDrawer中的本机控件
}