ionic3

问题 I'm working with PayTM web based payment gateway in ionic app. I used inAppBrowser to open that gateway and now I want to return back from the webpage to my app. How can I achieve it? 回答1: Here is my code. browser.on('loadstart').subscribe((e) => { let compareURL = "https://myurl.com/folder_name/filename.php?CODE=XXXXX"; console.log(e.url); if(e.url === compareURL){ this.navCtrl.setRoot(ConfirmationPage, { orderId: this.orderId }) browser.close(); console.log('browser closed'); } }, err => {

问题 I need to test the Ionic 3 app on a low-resolution device. But I don't have a low-resolution device.Can you tell me how to do that in the chrome dev tools? Low-Resolution device: Zte Screen Size: 5.0 Inches, 480 x 854 pixels 回答1: As specified in the comments, the pixel density is 196PPI . The device pixel ratio = 196/150=~1.3 The logical resolution is screen size in pixels/dpr i.e. (480x854)/1.3 = (369×657) width and height . 来源： https://stackoverflow.com/questions/47117951/emulate-low

问题 Trying to mock Ionic Native Network in browser. To do so, I added the class in my app.module.ts as follows: ... import { Network } from '@ionic-native/network'; ... ... export class NetworkMock extends Network{ type = 'none'; } @NgModule({ .... providers: [ ... ... { provide: ErrorHandler, useClass: IonicErrorHandler }, {provide: Network, useClass: NetworkMock} With the above, when I call the following function in a component: check_network() { console.log(this.net.type); } I get null in the

问题 I am using ionic 3.8.0, and I find that when alert is present in iphoneX, the top and the grey backdrop of alert have a gap like the image below, everyone know how to fix it? thanks a lot. info: cli packages: (/usr/local/lib/node_modules) @ionic/cli-utils : 1.15.2 ionic (Ionic CLI) : 3.15.2 global packages: cordova (Cordova CLI) : 7.1.0 local packages: @ionic/app-scripts : 3.0.1 Cordova Platforms : android 6.3.0 ios 4.5.3 Ionic Framework : ionic-angular 3.8.0 System: ios-deploy : 1.9.2 ios

问题 This question and its answers (copied below) provide a solution for handling the back button in Ionic, but that solution only works when other pages are pushed directly from app.component , in which case calling canGoBack and getActive() on this.nav works correctly because other pages have been pushed using this.nav.push in app.component . However if a page is pushed from one of the pages in the tabs (lets call it page1 ), i.e. by calling this.navCtrl.push() in page1 , then this.nav.canGoBack

问题 I have downloaded an pdf file from the server using Transfer Plugin and i am trying to open the file using InAppBrower plugin i am not getting anything. i mean nothing is happening. fileTransfer.download(url, this.file.dataDirectory + file.filename,false,{ headers: { 'authorization': 'bearer xxxx' } }).then((entry) => { console.log('download complete: ' + entry.toURL()); console.log(entry.nativeURL); const browser = this.iab.create(entry.nativeURL, '_system', 'location=yes'); //here the

问题 I have already looked at this similar question without success. The plunker mentioned in the question seems to be broken. I am trying to update parent component's property from child component's [(ngModel)] binding. This is the child components HTML: <div class="elastic-textarea"> <ion-input rows="1" [value]="inputValue" [(ngModel)]="inputValue" (ngModelChange)="change($event)" ></ion-input> </div> This is the child components TS: import { Component, EventEmitter, Input, Output, OnInit } from

问题 Im building an Ionic 2 application. Version control will be made through SVN. When creating the app using ionic CLI many files are generated. Same happens when adding platforms. Is there any standard approach defining which files to include in Version Controls and which ones to ingnore. (I.E. i think platforms folder should be ignored). 回答1: You can always take a look at the conference app to see how Ionic team recommends to do things. In this case the .gitignore file looks like this: #

问题 I have to add a view with Google maps map on my project. I followed the official ionic native Google maps documentation but it does not work. I assigned background color pink to the div that contains the map (for testing), before adding the map to the div, the div shows correctly. But when the map is added to the div the background of the modal window turns to transparent, and the div disappears. But no error is shown. I tried different ways to attach the map on the div, but the results are

问题 I am working with the database in ionic, I call one API that returns me a number of records, I have to insert those records into the database and when to insert operations are completed then I want to call select records from the database. problem is asynchronous behavior, the select records from the database called before the insert operations are completed. can anyone help me to resolve this? my code is below... DbProvider: export class DbProvider { public addData(dId: string, sId: string,