Androidの物理的なバックボタンエラー

Question

私はphysical Android Buttonをタップし、私は次のエラーを持っている

import { Component, ElementRef, OnInit, ViewChild, OnChanges } from "@angular/core"; 
import { CarwashService } from "../../../shared/carwash/carwash.service"; 
import { OrderService } from "../../../shared/order/order.service"; 
import { Page } from "ui/page"; 
import { Color } from "color"; 
import { Router, ActivatedRoute, Params } from "@angular/router"; 
import { TimePicker } from "ui/time-picker"; 
import { DatePicker } from "ui/date-picker"; 
import { StoredData } from "../../../shared/config" 
import * as application from "application"; 

@Component({ 
    selector: "order-detail", 
    providers: [CarwashService, OrderService], 
    templateUrl: "pages/order/order-detail/order-detail.html", 
    styleUrls: ["pages/order/order-detail/order-detail-common.css", "pages/order/order-detail/order-detail.css"] 
})  

export class OrderDetailComponent implements OnInit { 
    constructor(
     private page: Page, 
     private router: Router, 
     private carwashService: CarwashService, 
     private orderService: OrderService, 
     private route: ActivatedRoute){} 

    ngOnInit() {... }  
    checkStatus(){...}  
    addOrderTotalName(){...}  

    changeStatus(status){...}  
    closeOrder(){...}  
    cancelOrder(){...} 
} 

どういうところが間違っていますか？ enter image description here

Answer 1

通常、物理的な戻るボタンは前のページに戻るように動作しますが、なぜこれがあなたに起こるのかわかりません。戻るボタンの機能を次のように定義し直すことができます。

var application = require("application") 
var topmost = require("ui/frame").topmost; 

var activity = application.android.startActivity || 
     application.android.foregroundActivity || 
     frameModule.topmost().android.currentActivity || 
     frameModule.topmost().android.activity; 
var lastPress; 

activity.onBackPressed = function() { 
    topmost().goBack; 
}