import { ChangeDetectorRef, EventEmitter, AfterViewInit } from '@angular/core';
import { QrScannerComponent } from '@uex/ngx-qrscanner';
export declare class QRScannerComponent implements AfterViewInit {
    private _changeDetectorRef;
    scanner: QrScannerComponent;
    scanEvent: EventEmitter<any>;
    constructor(_changeDetectorRef: ChangeDetectorRef);
    area_visible: boolean;
    ngAfterViewInit(): void;
    onScan(event: any): void;
    flash(): void;
}