ionic3

问题 I have an Ionic 3 app and I want to set some variable inside it based on the download link from Playstore. For example, http://linktoplaystore.com/app?account=4 would set the account variable inside my app to be 4. Is there any way to achieve this? 回答1: You can do this in code by parsing and defining an array private urlParameters: Array<any> = []; if (YOURURLVARIABLE.indexOf("?") > 0) { let splitURL = document.URL.split("?"); let splitParams = splitURL[1].split("&"); let i: any; for (i in

问题 I want to be able to convert \r\n characters in a string to new lines Example John is waiting now.\r\nCan we tell you about him. \r\nHe is a great person Converted to John is waiting now. Can we tell you about him. He is a great person Tried this but to no avail nl2br(text: string) { return text.replace(new RegExp('\r?\n','g'), '<br />'); } 回答1: I think the problem might be due to the fact that your \r\n characters might be visible because they are "over escaped". Furthermore I don't know

问题 I’m having some weird behaviour when using Observable.of(array) and angular’s async pipe. Maybe I’m using it wrong but I can’t understand it. I have a view.html and view.ts file in Ionic 3 (angular 4). I’m doing a Observable.of(items). Items is just an array with objects. And in my view I have: let item of items | async. It all works great but when I also do a setInterval in the view.ts every 1000 miliseconds... the view updates every 1000 miliseconds. Even when the setInterval doesn’t do

问题 Using "@ionic-native/google-plus": "^4.20.0" "cordova-plugin-googleplus": "^7.0.1" "cordova-plugin-cocoapod-support": "1.6.0" because using the Gogole plugin together with: "cordova-plugin-firebase": "git+https://github.com/vash15/cordova-plugin-firebase.git#master", When calling this.googlePlus.logout() or this.googlePlus.login(), this gives following errors: (logout) -[__NSCFString gtm_stringByUnescapingFromURLArgument]: unrecognized selector *** Terminating app due to uncaught exception

问题 So I’m looking for 3 scenarios for my application… When the user is in the app everything works (obviously) When the app is either quit or put in the background (user presses home button) I want to trigger Function A When the user is in the app and simply locks there phone (doesn’t exit the app or anything) , I want to trigger Function C. I'm aware of the Pause functionality with apache and all,but I'm most worried about the 3rd scenerio Can someone help me differentiate the 3 scenarios above

问题 I am newbie in IONIC 3, I just want to implement status bar to my app. I tried following methods. import { App, Nav, Platform, Events, AlertController } from 'ionic-angular'; import { StatusBar } from '@ionic-native/status-bar'; constructor(public events: Events, public platform: Platform, publicstatusBar: StatusBar) { this.statusBar.overlaysWebView(true); this.statusBar.backgroundColorByHexString('#1972d2'); this.statusBar.isVisible; } and Changed in index.html page as solution mentioned in

问题 We are currently using azure notification hub which allows us to work with both APN and GCM/FCM. Push notification functionality works properly with our current native apps (both android and iOS). Now we are developing new apps using IONIC 3 and now trying to implement push notification in the same. There are many articles we have gone through. Some of them are using either ionic 1 or ionic 2. Few are using deprecated packages which are not supported on IONIC 3. Backend developers have used

问题 I am using ionic 3, and looping ion-card with like using ngFor. I want to know how can I react with the user when user click the like/unlike button in each ion-card without reload the list. <ion-card *ngFor="let u of users"> <p>{{u.name}}</p> <button ion-button [hidden]="u.isliked=='1'" (click)="like(u.id)">like</button> <button ion-button [hidden]="u.isliked!='1'" (click)="unlike(u.id)">unlike</button> </ion-card> 回答1: You can make use of the *ngIf operator. This won't hide the element like

问题 I have ion-select with that have many options and I have when the view is ready to select one default value depending on CurrentNumber. i have this code: <ion-select formControlName="Level"> <ion-option [value]="level.id" *ngFor="let level of levels" [attr.selected]="(level.levelNumber == currentLevel)? true : null"> {{level.name}} </ion-option> </ion-select> this.currentLevel = 1; the data comes from the server like that : data = [ { levelNumber : 1, name:'abcd' }, { levelNumber:2, name:'efg

问题 I have successful update angularfire 5.0.0.rc 8 and firebase 5.0.2 with no error module. I guess last thing i have to do is to change this code to retrieve all data import { Component } from '@angular/core'; import { NavController } from 'ionic-angular'; import { IonicPage } from 'ionic-angular/navigation/ionic-page'; import { Observable } from 'rxjs'; import 'rxjs/add/operator/map'; import { Note } from '../../model/note/note.model'; import { NoteListService } from '../../services/note-list