Most voted "ionic3" questions
Ionic 3 is the third version of Ionic, an open source SDK that allows developers to create mobile apps using web technologies (HTML, CSS, and Javascript). Ionic 3 uses the Typescript language. Use this tag for feature-specific questions of version 3 or later, for general questions use the [Ionic].
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answers262
viewsPass array object to API and save to Database
I’m using Ionic 3 and I want to save the data of an object in the database. In the API is running the query and saving null in the database, I imagine the way I am sending the object is wrong.…
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answers95
viewsError deploying Ionic 3
I’m trying to deploy in my app but this giving the image error, a blank project managed to deploy, more when I edit the screens of the app happens this error, so far I did nothing much, I only…
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answers12
viewsIONIC Error notification
This error is occurring in my application:…
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answer92
viewsError in Ionic-lab
I’m making an app, however when I run Ionic serves -l or having access to Ionic-lab by the browser it displays an error message and for the server, I’ve searched a lot over the internet and found no…
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answer1612
viewsSecurity and login authentication in Ionic 3 using PHP-generated access token
I’m developing an application where the user can login by providing his email and password. After that, I make a request to my server PHP which checks in the database if the data exist and are…
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answer598
viewsError compiling Ionic 3 with Cordova: Cordova node_modules Cordova-common src superspawn.js:169:23
In Ionic 3 with Cordova when I give the command: Ionic Cordova run android --emulate Give me the following message: BUILD FAILED in 3s at ChildProcess.whenDone…
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answer198
viewsCaching a JSON query in IONIC 3
Hello, I have an App that consumes JSON and lists the data, so far so good. My difficulty is in keeping this data for offline access. I want to consult after you’re offline. P.S.: I’ve been testing…
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answers1363
viewsHow to change the version of Cordova in Ionic?
I need to change the Cordova version of an Ionic project I’m testing, is that possible? If so, how can I do that? I currently have this version: But I would like to switch to version 7.0 . Which npm…
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answers202
views(Angularfire2 + Ionic3) Recover value from a Child for a variable
Good morning guys, I am new to the Ionic/Angularfire branch and I am facing a great difficulty to recover the value of a Child within my Database. The idea is to take this value and store it in a…
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answers360
viewsHelp Ionic form validation 3
I would like a little help , I’m new to Ionic , and I would like a help on email validations just to see if it is valid , I do not want to search in any database , I just want to know if it has @or…
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answers2286
viewsHow do I change the color of the iontabs?
I would change the color of the ion tab, I managed to change the color of the icons and the text, but the tab itself I can not modify, I am very beginner in IONIC 3. I will show the code until then.…
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answer335
viewsHow to navigate on Ionic tables
Hello! I created the tabs in my html of Ionic and I want when I click open the target page, appear the tabs right but when clicking only changes the icons to active and do not arrow the page, my…
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answer235
viewsPolygon events on google maps with javascript
I need to capture the event of DWELL, ENTER, LEAVE of the polygons, can already add them on the map with the following code: this.map.addPolygon({ points: geofence, strokeColor: '#FF0000',…
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answer636
viewsHow to filter an Observable?
How to filter a Observable returned from Cloud Firestore? export interface Pessoa { nome: string; cidade: string; telefone: string; } pessoaList: Observable<Pessoa[]>; I have the method below…
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answers100
viewsSlow loading of Ionic 3 images
Good afternoon, I developed an app selling products and, is working perfectly. My only problem is how to upload images. I downloaded some store apps, and the images appear almost instantly and in my…
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answers24
viewsIonic capacitor npx Sync not working
when I add a plugin, I need to run the command: npx cap sync So that it can load the plugin, however I’m getting the error below:…
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answers39
viewsScroll Ionic 3 Ios
I’m having trouble with this scroll, creating a black image at the bottom of the page. When I drag it up, it appears, when it drags down the black image.…
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answer562
viewsError to generate APK in IONIC 3
The problem only occurs at the command: $ Ionic cordova build android Cordova build android. Android Studio project Detected [10:58:09] lint finished in 4.20 s ANDROID_HOME=C: Users diario Appdata…
ionic3asked 6 years, 10 months ago João Diego Florencio 126 -
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answer129
viewsProblems adding side menu in project already started
I’m starting with Ionic, have a question. I created a blank project "Ionic start project Blank", and I was able to create the main screen of my app, just a LOGO with "LOGIN" button to enter the app,…
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answer502
viewsHow to pass values from a list in Ionic3
Talk guys, I’m breaking my head with something "presently" simple, more not so much... I have a simple json with id and name, with approximately 25 records, I have to take only the records selected…
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answer180
viewsColors of buttons created in Ionic Creator do not stay in the project as in mockup
I created a layout using Ionic Creator, exported but the button colors and other elements created (in Ionic version 3) are ALL blue. Follow an example code: <div id="wellFit-button-bar1"…
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answer51
viewsIonic - Problems Pulling Data from PHP Database
Hello, I would like to know how I can pull the database data already with the tags in html. I collect the data and they come normally, but my table is composed by title, content and in this content…
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answers673
viewsion-input only ionic3 bounded numbers
Good morning guys, I’m new to Ionic, I did a search through the site but I couldn’t find an answer to my question. See if you can help me: I want to delimit a number-only data entry. The maxlength…
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answer168
viewsChange only one checkbox
How do I change only the checkbox I’m clicking? checked:boolean=false; ck() { if(this.checked === false){ this.checked=true; }else{ this.checked=false; } <ion-item> <ion-label class="title"…
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answers272
viewsRelationship local tablesStorage Ionic 3
I want to make a relationship between two "tables" in Ionic 3 with Localsotrage. I created a preview with the first that would be the movement register: import { Injectable } from '@angular/core';…
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answer23
viewsTab does not change when I switch pages
I am on a page and when click on a button I call an event, I want it to call another screen, they are calling but the tabs is not changing, remains in the same as the button. Code I’m using to call…
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answer333
viewsIon-select does not work as it should
I have the following code for ion-select: <ion-item class="drop-categoria" style="margin-bottom: 5%; "> <ion-label>Categorias</ion-label> <ion-select [(ngModel)]="catselected"…
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answer325
viewsIonic 3, "push" of variables
Good afternoon guys, could someone help me with this basic question ? how do I take the variable from a ts file and throw it into another file ? example... in one typescript I have a variable that…
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answer746
viewsSolving Precedent at the Angle
I am working on an application with Ionic 3 + Angular 5 and I have to take an Ionic Storage value as follows: this.userStorageService.get('expiresIn') .then((data) =>…
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answer1154
viewsAngular validate password field with Formgroup
I have the following code: TS code: ... onRegisterForm: FormGroup; ngOnInit() { this.onRegisterForm = this._fb.group({ nome: ['', Validators.compose([ Validators.required ])], email: ['',…
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answers96
viewsHow to use Google Analytics with Ionic 3
Good afternoon, I’m making an app using Ionic 3 and I use the Restful API with php for connection to the Mysql database, and I need to use Google Analytics in the project, but I can’t find a…
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answer90
viewsIncrement Array with filter
I need to increment the item this.order[i].nome_servicein the variable this.result only when you click the checkbox as well as decrement when unchecked. orders = [ {id_service: "1", id_empresa: "9",…
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answers356
viewsAngular 5 + Ionic 3: I can’t send headers in API requests
I am consuming an API through a post method and need to command the Authorization header. I am doing it as follows: public post(resource, body, authorization = false): Observable<any> { const…
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answers228
viewsCorrect way to pass headers to the Httpheaders Object
I’m trying to figure out how to pass headers the correct way to instantiate an object HttpHeaders in the Angular 5. I have the following code: postApi(body: any, route: string) { return new…
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answer473
viewsIncrement Ionic data 3, Angular, Typescript
I would like to know how to increase the expiration date of a purchase. Example: the person made a purchase, and put the due date for the day 30 March, then the date of the second installment would…
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answer360
viewsSeparate Array within Object
I have an array inside an object, I would like to know how to separate the items service_name and service_value. I don’t know if there’s a way to do this in html itself... pedido{id_pedido:"17",…
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answer841
viewsHow to read the result of a JSON array using Ionic 3?
I’m doing a GET for login, but I need to get the user ID for the session as well: submit(){ var link = 'http://localhost:1337/usuario?email='+ this.usuario.email + '&senha='+ this.usuario.senha;…
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answers1087
viewsIONIC 3 - error generating build - Ionic Cordova build android --Prod --release
Talk garela, well I’m having a problem trying to build an IONIC 3 application, follow the data below the environment and the errors I’m having, if someone has already gone through it and got the…
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answer518
viewsCordova: Android SDK is not set up properly. Make sure that the Android SDK 'tools' and 'Platform-tools' Directories are in the PATH variable
How to fix this error while running command: Ionic Cordova Platform add android ? ionic cordova platform add android > cordova platform add android --save Using cordova-fetch for…
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answer37
viewsDisplay all text on button
Hello! It is possible to display all button text on it? Automatically adding these ellipsis, but would like to display all the text. <ion-segment-button value="Bareserestaurantes"…
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answer211
viewsAutomatic Keyboard in Input with Ionic
I need an Ionic routine that calls the Keyboard from the mobile phone for an ion-input when entering the page. An example page would be: <ion-content padding> <form> <ion-row>…
ionic3asked 6 years, 3 months ago Evandro G. Santos 13 -
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answer91
viewsBugando image keyboard on android [IONIC 2]
I have the following problem: As you can see in the image above, when I click to write in the login and password fields, this white background appears in the image. I imagine the problem is related…
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answer951
viewsIonic 3 Error Compiling for Android: Error: Failed to transpile program
When I give the command: ionic cordova build android --debug It makes the mistake to follow, but in ionic serve normal wheel... what I’m doing wrong? Error: Failed to transpile program at new…
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answer2070
viewsError: Uncaught (in Promise): Error: PERMISSION_DENIED: Permission denied
I’m doing an application with Ionic 3 and Firebase, where there’s crud. My problem is that I am trying to save the data, but when saving it shows that I do not have permission. What I should do?…
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answer48
viewsIonic 3 consume api after build
Next I have an api running already, and I can make the requests quietly by Ionic serves using the Chrome extension allow access-control-allow-origin , and I have all the right answers , but when I…
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answers20
viewsChanging a route parameter
I have an app Ionic in which I use tabs with two different pages and I have to pass parameters to them. <ion-tabs #myTabs color="credisis" *ngIf="pagador"> <ion-tab tabIcon="person"…
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answers277
viewsInject service in the page’s press.module
I’m working with Ionic 3 and I’m using some of your native services, like logging in with facebook. Everything works perfectly, my problem is in something I’m trying to do to organize my code more.…
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answers344
viewsError running Ionic Cordova run android --emulate
I don’t know what it is. I’ve given reward without right answer in a previous question. I’m almost leaving the project. What I’ve already done: I had to format the PC, until then working well. When…
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answer440
viewsConfirm registration password Ionic 3
I have a registration form on Ionic 3, but I can’t validate the password with another ion input. Register.html: <ion-item class = "log-input"> <ion-label floating>Email</ion-label>…
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answer31
viewsAuthentication using for or filter Ionic 3
Hello, I wonder if I can use validation without by setting the "Authentication" of FIREBASE, I have a list of objects, if(placa == 'ABC123' && senha == '123') alert('logado') else if(placa…