ionic3

问题 I am working on the Ionic Ecommerce App and using API made in Laravel. I have added the products in the cart but when I am increasing the quantity of products in the cart, the price of product is increasing but the total price is not updating and also when removing the product from the cart, it is not updating the price. This is my cart.html : <ion-header> <ion-navbar color="primary"> <button ion-button menuToggle> <ion-icon name="menu"></ion-icon> </button> <ion-title> Your Cart </ion-title>

问题 I am working on the Ionic Ecommerce App and using API made in Laravel. I have added the products in the cart but when I am increasing the quantity of products in the cart, the price of product is increasing but the total price is not updating and also when removing the product from the cart, it is not updating the price. This is my cart.html : <ion-header> <ion-navbar color="primary"> <button ion-button menuToggle> <ion-icon name="menu"></ion-icon> </button> <ion-title> Your Cart </ion-title>

问题 Step 1 : Ionic create New App. (ionic start myApp1 sidemenu) Step 2 : Create New Page home and aboutus. (ionic generate page aboutus) step 3 : Create button at aboutus page for url redirect to another website. aboutus.html : (<button ion-button (click)="redirect()"> GO » <button>) aboutus.ts : redirect() { window.open("https://www.w3schools.com/php/", "_self"); } step 4 : When i click GO button the url redirect to w3schools.com and again browser back button click the redirect to home page

问题 I want to remove the inbuilt grey small caret from ion-select , and use my custom caret(arrow) instead. Code: ion-select { color: grey; background:url("/assets/resources/img/ArrowDownConfig.svg") no-repeat 92% center !important; } But my css code is unable to precedence over the ionic(inbuilt). You can see there are two arrows in the image, one is inbuilt and another is custom. I want to remove inbuilt(ionic) one. 回答1: I don't know how to fix, faced same problem, but it seems to be issue with

问题 I follow this http://ionicframework.com/docs/native/in-app-browser/ document for use inappbrowser and try with below steps : 1- install ionic cordova plugin add cordova-plugin-inappbrowser npm install --save @ionic-native/in-app-browser 2 - Add this plugin to app.module.ts provider 3 - add to constructor : constructor(private iab: InAppBrowser) { } 4- and use it in launch method like this : import { InAppBrowser,InAppBrowserEvent} from '@ionic-native/in-app-browser'; launch(urlc){ let url =

问题 I'm trying to return a boolean after a promise resolves but typescript gives an error saying A 'get' accessor must return a value. my code looks like. get tokenValid(): boolean { // Check if current time is past access token's expiration this.storage.get('expires_at').then((expiresAt) => { return Date.now() < expiresAt; }).catch((err) => { return false }); } This code is for Ionic 3 Application and the storage is Ionic Storage instance. 回答1: You can return a Promise that resolves to a boolean

问题 I'm having this issue with Ionic Storage, this is the complete stack trace: core.es5.js:1084 ERROR Error: Uncaught (in promise): QuotaExceededError: at c (polyfills.js:3) at c (polyfills.js:3) at polyfills.js:3 at t.invokeTask (polyfills.js:3) at Object.onInvokeTask (core.es5.js:4140) at t.invokeTask (polyfills.js:3) at r.runTask (polyfills.js:3) at o (polyfills.js:3) at IDBTransaction.invoke (polyfills.js:3) I'm using the settigs servis as recommended in Ionic super template. this is

问题 I am using Ionic3, and have: <span class="char-left">{{REVIEW_MAX_LENGTH-ratingModel.review.length}} characters left</span> I would like to conditionally change the class value when another value is populated, i.e when ratingForm.controls.review.length > 0 change the values to class="char-left-error" . I did look at ng-class, but cannot seem to get it to work. Any help appreciated. 回答1: If it's just a single class, you can try with <span class="char-left" [class.char-left-error]="ratingForm

问题 How can you reference template input variable hero from *ngFor="let hero of heros" inside Typescript? I'm using a stateful component So code has this for the 'heros' equivalent in my code is: servers: Server[]; It is populated when screen first appears via ionViewDidLoad. When I add the server via button at bottom, ionViewDidEnter calls same loading method to populate servers again. When debugging I'm going via ionViewDidLoad path. [ 回答1: Probably you can pass it inside a function <div *ngFor

问题 view.html <div>{{text}}</div> The question is that 'text' has HTML that I wish to be displayed as it should but it only shows the HTML tags and text. What can I do to render such content? I've tried the earlier version (Ionic 1/2) solutions and nothing seems to work with Ionic v3. 回答1: You should use the innerHTML attribute binding like this: <div [innerHTML]="text"></div> Please take a look at the Angular docs for more information. 回答2: in case you want to write it in paragraph you can do