ionic3

How to use angular 2 service with Ionic 2?

大城市里の小女人 提交于 2019-11-27 13:53:38
I am new to Ionic 2. I read in angular 2 docs, that service needs to be injected while bootstrap application. But could not see any bootstrap thing while going through Ionic 2 tutorial. Any help is highly appreciated. There is no use of Bootstrap() in Ionic2, only use of @App to declare your app. You still need to declare your service in your @Page component. Create your service import {Injectable} from "angular2/core"; import {Http} from "angular2/http"; @Injectable() export class DataService { constructor(http: Http) { this.http = http; this.data = null; } retrieveData() { this.http.get('.

TypeError: Object(…) is not a function

落爺英雄遲暮 提交于 2019-11-27 13:18:27
working on ionic3, angularfire2 v5 TypeError: Object(...) is not a function at SwitchMapSubscriber.project (http://localhost:8100/build/vendor.js:73935:76) at SwitchMapSubscriber._next (http://localhost:8100/build/vendor.js:61778:27) at SwitchMapSubscriber.Subscriber.next (http://localhost:8100/build/vendor.js:20750:18) at RefCountSubscriber.Subscriber._next (http://localhost:8100/build/vendor.js:20786:26) at RefCountSubscriber.Subscriber.next (http://localhost:8100/build/vendor.js:20750:18) at Subject.next (http://localhost:8100/build/vendor.js:23237:25) at ConnectableSubscriber.Subscriber.

Angular 4 : How to use await/async within subscribe

痞子三分冷 提交于 2019-11-27 13:07:12
问题 I can honestly say await/async in angular is really a great stuff, it reduces a lot of braces, improves readability and prevent a lot of human error. However, one thing puzzles me a lot. how can I use await/async inside subscribe. let's say @Injectable() export class TableCom extends BaseCom { public subject = new Subject<any>(); } TableCom is a provider serves as a communicator between a signalr component and a page component. so inside the page component constructor, it is using the

Problem with play-services-measurement-base on ionic

怎甘沉沦 提交于 2019-11-27 11:53:25
I have a problem on an ionic project that it started happening yesterday without modifying any dependency. When I run ionic cordova run android I have this error: The library com.google.android.gms:play-services-measurement-base is being requested by various other libraries at [[16.5.0,16.5.0], [16.4.0,16.4.0]], but resolves to 16.5.0. Disable the plugin and check your dependencies tree using ./gradlew :app:dependencies. But I didn't installed any dependency in these days. This is my cordova plugins list: cordova-fabric-plugin 1.1.14-dev "cordova-fabric-plugin" cordova-plugin-advanced-http 2.0

How to Include JS file in ionic 3

天大地大妈咪最大 提交于 2019-11-27 11:39:56
问题 Im looking for a way to access a variable from external js file which i included in assets/data folder below is what i tried placed test.js in assets/data folder in test.js added variable testvar = "heloo from external js"; added script tag in src/index.html <script src="assets/data/test.js"></script> in app.component.ts i added this line after imports; declare var testvar: any; in constructor added this line to log the value console.log(testvar); result is error : ERROR ReferenceError:

Unable to run Ionic app after update to Android Studio 3.0

我怕爱的太早我们不能终老 提交于 2019-11-27 10:20:59
问题 Here's my Ionic Info cli packages: (/Users/billb/dev/customer-mkt-app/node_modules) @ionic/cli-utils : 1.15.2 ionic (Ionic CLI) : 3.15.2 global packages: cordova (Cordova CLI) : 7.0.1 local packages: @ionic/app-scripts : 3.0.1 Cordova Platforms : android 6.2.3 ios 4.4.0 Ionic Framework : ionic-angular 3.3.0 System: Android SDK Tools : 26.1.1 ios-deploy : 1.9.2 Node : v6.11.5 npm : 3.10.10 OS : macOS Sierra Xcode : Xcode 9.0.1 Build version 9A1004 Environment Variables: ANDROID_HOME : /Users

Why am I getting the error plugin_not_installed with the Ionic Framework plugin healthkit?

我是研究僧i 提交于 2019-11-27 09:08:25
I have been using Ionic Framework for a while but I have recently come across this error plugin_not_installed for the Health Kit plugin which I know I have based on my ionic cordova plugin list output. $ ionic cordova plugin list > cordova plugin ls com.telerik.plugins.healthkit 0.5.5 "HealthKit" cordova-plugin-apprate 1.3.0 "AppRate" cordova-plugin-badge 0.8.5 "Badge" cordova-plugin-device 1.1.4 "Device" cordova-plugin-dialogs 1.3.4 "Notification" cordova-plugin-globalization 1.0.8 "Globalization" cordova-plugin-google-analytics 1.8.3 "Google Universal Analytics Plugin" cordova-plugin

How to scroll element into view when it's clicked

时光毁灭记忆、已成空白 提交于 2019-11-27 07:39:39
问题 Am looking for something similar to scrollIntoView() within Ionic2 to use when I click on a button, for example. None of the methods detailed in ion-content help. 回答1: Please take a look at this working plunker You can use the scrollTo(x,y,duration) method (docs). The code is pretty simple, first we obtain the position of the target element (a <p></p> in this case) and then we use that in the scrollTo(...) method. First the view: <ion-header> <ion-navbar primary> <ion-title> <span>My App<

How to remove default color in input type?

五迷三道 提交于 2019-11-27 07:22:52
问题 I had created the input type and created the border the border for that box,but when i had clicked in that button it is displaying the default color but i should not display the default color Below is the displayed image: Below is my html code: <ion-item class="Credit"> <ion-input type="number" placeholder="Credit Card number" class="form-control"></ion-input> </ion-item> Below is my css code: .Credit{ top: 20px; border-radius: 10px; width: 350px; display: block; margin-left: auto; margin

Queries scale with the size of your result set, not the size of your data set

折月煮酒 提交于 2019-11-27 07:22:28
问题 This is a question about the latest Firebase Cloud Firestore.In this doc it says like this: It also allows for expressive queries. Queries scale with the size of your result set, not the size of your data set, so you'll get the same performance fetching 1 result from a set of 100, or 100,000,000. This statement is not clear for me. Can you explain little bit more about this use case? 回答1: This may be written a bit confusing. It is not a use-case in the classic sense its just a statement about