ionic3

问题 Hi everyone i wan't to switch building layout image to building design image back and forth using if else statement but i don't know how to implement it. I'am new in this type script, anybody would love to share an answer? Thank you for your answers in advanced 回答1: here is an example-component to switch a image by a action: HTML of component: <ion-list> <ion-item *ngIf="showImage1"> <img src="../assets/imgs/dots.gif" height="50px" width="50px" > </ion-item> <ion-item *ngIf="showImage2"> <img

问题 How are you?. I am studying a Google Maps with Ionic 3 tutorial. I have done everything what is explained there, but when the project is launched, there is appearing this error. I have investigated A LOT, but nothing works. Thanks!. Error: Uncaught (in promise): ReferenceError: google is not defined ReferenceError: google is not defined This is my code: home.ts import { Component, ViewChild, ElementRef } from '@angular/core'; import { NavController } from 'ionic-angular'; import { IonicPage }

问题 I am trying to use Appsee or UXcam I tried import like below, but no luck // import { Appsee } from '@ionic-native/appsee'; Else where i saw that you have to declare the variable in question for typescript to recognize the variable, I did that like below declare var cordova:any; // import { Appsee } from '@ionic-native/appsee'; declare var cordova:any; @Component({ templateUrl: 'app.html' }) export class MyApp { rootPage:any = LoginPage; // FOR TESTING constructor(platform: Platform,

问题 I am getting this error when using videos-panorama Dom Exception: Failed to execute 'texImage2D' on 'WebGLRenderingContext': The video element contains cross-origin data, and may not be loaded. https://github.com/yanwsh/videojs-panorama <code> (function (window, videojs) { var player = window.player = videojs('videojs-panorama-player', {}, function () { }); var videoElement = document.getElementById("videojs-panorama-player"); var width = videoElement.offsetWidth; var height = videoElement

问题 I’m getting push notification messages and once I receive the message, I want to redirect to another page or show another page instead of home page. NavController doesn’t work here, so I was wondering what will? export class MyApp{ rootPage:any = HomePage; constructor(platform: Platform, statusBar: StatusBar, splashScreen: SplashScreen, public push: Push) { platform.ready().then(() => { // Okay, so the platform is ready and our plugins are available. // Here you can do any higher level native

问题 I’m getting push notification messages and once I receive the message, I want to redirect to another page or show another page instead of home page. NavController doesn’t work here, so I was wondering what will? export class MyApp{ rootPage:any = HomePage; constructor(platform: Platform, statusBar: StatusBar, splashScreen: SplashScreen, public push: Push) { platform.ready().then(() => { // Okay, so the platform is ready and our plugins are available. // Here you can do any higher level native

问题 I need to implement network information plugin in an ionic 3 angular 4 project. I have installed a network plugin using $ ionic cordova plugin add cordova-plugin-network-information $ npm install --save @ionic-native/network@5.0.0 After installation, I have used this plugin in app.component.ts but I'm getting an error as ERROR Error: Uncaught (in promise): TypeError: Object(...) is not a function(…) on either device or emulator. I'm sharing native-core and plugin versions that I have used in

问题 This is a multi-level accordion list and at the third level I put button (hammer icon) beside in each items. I added a toastController in the button but how can I display each item I clicked in problems to be fix (at the bottom side of the menu). form.html ... <button ion-item (click)="toggleSection(i)" detail-none [ngClass]="{'section-active': item.open, 'section': !item.open}"> <ion-icon item-left name="ios-arrow-forward" *ngIf="!item.open"></ion-icon> <ion-icon item-left name="ios-arrow-up

问题 I am writing an app for checking attendance on a classroom via bluetooth. It works just fine so far, I have been testing with my Macbook, iPad, Apple TV. And I get their name, such as: "Eduardo's iPad, Apple TV, Eduardo's Macbook". The problem is that yesterday I tested it on a mall, and all I got was a bunch of "unnamed" devices. That's going to be a problem on the classroom as well. I am also getting an id, but I don't know how to identify that id on the iOS or Android device, this are the

问题 im using ionic view legacy and the http post don't have any problem about it. but when migrating using ionic view pro when doing http post then show error " Respon with status: 0 for URL: null ". This is a part of my config.xml <access origin="*" subdomain="true" /> <allow-navigation href="*" /> <allow-intent href="http://*/*" /> <allow-intent href="https://*/*" /> <allow-intent href="tel:*" /> <allow-intent href="sms:*" /> <allow-intent href="mailto:*" /> <allow-intent href="geo:*" />