how close clender with popover

[liuchuancong]

export class PopoverComponent implements AfterContentInit { @ViewChild(TemplateRef) templateRef: TemplateRef;

@ViewChild('focusTrapElement') private _focusTrapElement: ElementRef;

constructor(private _elementRef: ElementRef) {
}

ngAfterContentInit() {
}

open() {
}

close() {

}

toggle() {
    console.log('toggle');
}

} in close method