Most voted "mobile" questions
Questions related to software development for portable devices such as mobile phones (en: mobile) and tablets, on or off the web (mobile sites) (apps).
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viewsHow to browse a multidimensional list in flutter
I have a list that I will use to form a Drawer, passing it title, link and icon. List<List<String>> DrawerList = [ ["Perfil", "/perfil","Icons.vpn_key"], ["Turmas",…
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answers37
viewsHow to use the same Stream on different pages in Dart?
Hello! I am creating an application using Clean Architecture as a base. In the context of my problem, I have a Tabbarview that has 4 indexs. In the numbers 0 and 3, there is a component that will be…
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answers11
viewsdisplay data stored on sqfliter in flutter
Personal I am trying to display data that I take from sqlfliter and display in a listview but always gives error: [ERROR:flutter/lib/ui/ui_dart_state.cc(199)] Unhandled Exception: type 'int' is not…
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answers271
viewsDoes the secure API depend entirely on the developer or platform?
What challenges does the programmer face to make his API completely secure? When I talk about security I mean directly if the application exposes customer information or even makes your application…
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answer472
viewsAlternative mobile development - Java FX, Android, Codenameone
I’m conducting a research of native mobile development alternatives with some market tools. In addition to the platforms' own native development tools (iOS and Android, for example), I found some…
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answers2591
viewsHow to create a mobile desktop shortcut for a Web App?
I have a web app ready and published. There is the possibility to create a web app icon on the Desktop of iOS and Android Systems automatically or at least through a confirmation question? I hope I…
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answer1126
viewsSlide effect of Carousel bootstrap does not work on iphone
I am building a responsive web page with the bootstrap plugin. Everything works fine in desktop browsers, even in low resolution. But when I open the page in Chrome or Safari, on my iphone, the…
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answer1017
viewshow to resolve accent errors when sending an Android message to a php API
Guys, I’m having trouble sending strings with accentuation and strings with 2 lines or more. When sending without accentuation or and with only one line it normally accepts, however, when sending…
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answer331
viewsMobile Application making calls in Delphi
I was wondering if it is possible to make calls with a mobile app built in Delphi ? If it is possible to show an example of how to implement.
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answer127
viewsWebsite button works on desktop but not on mobile
I have a button on the website that triggers a lightbox to fill out a contact form. The problem that the button is only clickable on Desktop. When accessed by a mobile device, this button no longer…
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answers1040
viewsHow to disable responsive from a css site
Hello, I wonder if it is possible to disable the responsive of a site in jquery without changing the codes for example force the desktop version on mobile devices! thank you in advance!…
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answer183
viewsJSON communication between domains with Cordova
I need the application to communicate with a server via JSON to log in. How to do? Obs: Just a simple communication via JSON using Cordova, where the answer was very enlightening.…
jquery android apache-cordova mobile cordova-pluginasked 6 years, 12 months ago Anderson Brunel Modolon 1,111 -
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answer193
viewsInsert a Splashscreen or imageView into app crosswalk webview
I have a crosswalk webview application. as my site takes about 5 seconds to open on screen, I thought about inserting a splashscreen or imagemview ( I don’t know if there’s a difference between the…
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answer56
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answer241
viewsProgressive Web Apps switching pages inside the app without opening browser
I have a mobile page (http://mvc-decea.azurewebsites.net) based on Progressive Web Apps and made using Asp.Net Core. But I’m in so much trouble: When adding to the mobile home screen by clicking on…
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answer172
viewsAndroid Studio Doesn’t Recognize Gradle Libraries
I took a project that has several external dependencies, like facebook lib, even some of the android support itself. The design compiles normally and runs perfectly on the device. The problem is…
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answer746
viewsUpload Files to React Native
Good afternoon, everyone, I am starting the programming in React-Native and I have a question about using Forms to upload files. It is possible? Thank you.
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answer70
viewsForm with the CSS
I have developed a mobile application and am unable to keep the layout responsive on other devices... You can give me an example of a CSS and a form with CSS applied? Any help, I really appreciate…
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answers56
viewsAndroid change the color of a button for 1second
I have an array that contains integer numbers from 0 to 4. {1,4,0,3,2} need a button to blink a certain color according to the sequence. How this is done ?
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answer737
viewsAjax does not work on android
I’m making a request ajax that works perfectly on the Desktop, but when I test on android does not work, if anyone can help me jQuery(document).ready(function($){ $("#loginform").on('submit',…
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answer17
viewsGoogle maps API not supported by android
When I try to virtualize android to start with Google Maps give this error: won’t run without Google Play Services, which are not supported by your device. If someone can help me , I’m already 4…
mobileasked 5 years, 9 months ago Tiago Santana 19 -
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answer44
viewsCheckbox selection
Good night, In my app, I need to select a total of 2 Checkbox boxes. After selecting 2 boxes, all others should be set with setEnabled(false). So far so good, but how will I know which box was…
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answer92
viewsHow does an Ionic application connect to a server?
Creating a Mobile Client/Server Calculator Create a calculator where the user type two numbers and submit for a server to calculate The server will do the calculation and your application will show…
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answers546
viewsDrawer Navigator does not open - React Native Navigation
I’m doing a project in React Native using the React Navigation 3.x and trying to use the Drawer Navigator, I’ve used it on React Navigation 2.7 and it worked perfectly, only now for some reason it…
javascript mobile react-native navigation-drawer react-navigationasked 5 years, 9 months ago Bruno 83 -
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answer395
viewsWhy is the "ion-slides" not working properly in my app?
I’m developing an app using Ionic 4. On one of the pages I started creating, I’m trying to use the "ion-slides component". I inserted a basic component into an html page, just to test, like this:…
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answer251
viewswebview inside Fragnent I want to open my site inside the webview, and the links inside the site should open outside
REINFORCEMENT I AM OPENING WEBVIEW IN A FRAGMENT AND NOT IN MAIN ACTIVITY - I want to open my site inside the webview, and the links from other sites should open outside, in the normal mobile…
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answer198
viewsError trying to change the configured Locale using a Dart library
I’m trying to set up a new one locale on another screen of the application, but it says that the object I try to access is null, but I did exactly as the example, I’m not finding the error.…
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answer95
viewsError in calculation - Flutter
I am cracking my head in a problem that is giving in my debug in an application of mine which is as follows: "The method '>' was called on null. Receiver: null Tried Calling: >(0)" Follow the…
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answer39
viewsThe component for the 'Profile' route needs to be an React type component
App.js import React from 'react'; import { StatusBar } from 'react-native'; // Importação das rotas import Routes from './src/routes'; export default function App() { return ( <> <StatusBar…
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answer34
viewsImage does not get larger than 40x40 pixels
I’m studying reacti Active and I’m trying to show an image in a location on the map. When I adjust the width and height of the image, it ends up being "cut" when it is larger than 40px. I am using…
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answer854
viewsNavigation between flutter screens
I have the following code, which is called in main.Dart to display, and I would like to navigate to another screen(class), but when I use routes, when I call the element navigator, he of the error…
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answer239
viewschange user-agent in python webdriver Selenium during navigation
need to perform the following procedure: 1) browsing with user-agent mobile (I can do) open the site www.site.com and login (I can do) 2) Change user-agent to mobile(I cannot do) access an option on…
python mobile selenium-webdriver toggle user-agentasked 4 years, 5 months ago enio ricardo de farias 11 -
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answer134
viewsError in call of Arrow function on button - React Native
I want to call the clearMemory function by the "AC" button but I’m not getting it. Follow the reference code: export default class App extends Component { state = { displayValue: '0', } addDigit = n…
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answer228
viewsMemory management/cloud image storage by Flutter
I recently started developing an App on Flutter and am trying to understand how it uses device memory/storage in relation to cloud-hosted images. To better contextualize is a Market App, the…
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answers516
viewsbuild_runner does not execute the flutter pub run build_runner build --delete-Conflicting-outputs --verbose command
Hello, I created a project with the flutter create command. as I will use modular to activated the slidy in the project with the slidy start command so far so good, but when I try to run the command…
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answer20
viewsreceiving NULL parameter in details Fragment
My Pokemonitem class has a Skill List on it (another class), when I get the "abilities" I get a "null" on my screen instead of the "abilities". Someone can help me? private fun configDetalhes() {…
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answer12
viewsProblem with difference in color of Android app. Android Studio appears one way and my phone is totally different
Hello, all right? I’m starting now in Mobile Development. My problem is the following: I created a simple app for testing, in Android Studio it gets the colors the right way I want, but when I…
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answer280
viewsForce open Facebook/Twitter/Google in browser
I created a mobile app that is accessed via browser (a web app, a common website). In it I have a button that opens via window.open() a page on Facebook, but when I click the button, it calls the…
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answer96
viewsIn Mobile mode, Body does not fill 100% of the screen
Good morning, I am breaking my head for days in a business card project that I will deliver along with an ERP, when opened on the desktop is great 100%, but when in Mobile is a white bar (I’ve seen…
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answer204
viewsCSS does not load on mobile version when installing free SSL certificate
I installed an SSL certificate https://zerossl.com/ on a website. The certificate is working normal. The problem is that in the mobile version of the site the CSS is not loaded, on the other hand,…
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answer84
viewsCSS for Google Pixel 3 XL resolution
What would be the media querie for the resolution of the new mobile: Google Pixel 3 XL ? At this link i have the media queries for version 2: @media only screen and (-webkit-min-device-pixel-ratio:…
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answer38
viewsFirebase replaces information instead of adding
I’m making a task app with Kotlin and firebase, but every time I try to add information to my database, it doesn’t add it but replaces the previous one. This is my code: class AddActivity :…
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answer388
viewsI need help to configure Axios client according to Wi-FI/3G/4G network
I’m developing an app in React-Native using expo, and the app works well on the Wi-Fi from here, but it should also work outside of here, and we have a firewall port that points to API nodejs by our…
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answer356
viewsError Trying to Run React Native project on Android physical device
I am trying to start a React-Native project 3 days ago on my PC to run on my Android physical device. While running the project with npx react-native run-android appear the following logs: info…
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answer52
viewsInstalling apk from an app from another app already installed
After research I found nothing recent or specific about it, so I decided to ask here. In the company where I work we have some mobile solutions and different customers use different sets of Apps.…
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answer175
viewsThe method 'setState' isn’t defined for the type 'Myapp'
I’m starting in flutter, but I came across this mistake in setState. Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar( title: Text('Horímetro'), ), body:…
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votes2
answers53
viewsBy doubling the value returned when running onDataCahage in FIREBASE, can you help me?
I want to recover the value of a drive in Firebase and save that value whenever the field flag for "noDebitado" and thereafter, with each loop interaction for, I want to set a new value for flag…
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answer99
viewsHow best to start developing a mobile app
Good afternoon, I would like to know the best language to develop an application for mobile and which platform to start developing. Thanks in advance.
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answer40
viewsHow to inhibit the effect of logo enhancement on mobile
I already thank the one who is willing to help me. First I understand the basics of html and css, and I’m setting up an online store with a template already ready, I’m just adding what I need and…
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answer13
viewsHow to make the menu not be hit by the iPhone scroller?
In the browser of Safari / or Chrome in the iPhone mobile version, appears a rolling bar on top of the menu, there is a way to resolve this when iPhone? SCSS: @mixin getSideRadius($side:'normal',…