Tiempo de lectura: 2 minutos Reading time: 2 minutes I’m going to show you an example of how to customize a loader to appear when we need to load data in our application. The loader element is as follows: class Loader extends StatelessWidget { @override Widget build(BuildContext context) { return Center( child: Container( padding: EdgeInsets.all(16.0), decoration: BoxDecoration( color: Colors.white, borderRadius: … Read more
Tiempo de lectura: < 1 minuto Reading time: < 1 minute First, we need to add the provider dependency inside the pubspec.yaml file. dependencies: flutter: sdk: flutter provider: ^5.0.0 To modify the theme of an application, I’ll show an example below: import 'package:flutter/material.dart'; import 'package:provider/provider.dart'; void main() { runApp( ChangeNotifierProvider( create: (context) => ThemeProvider(), child: MyApp(), ), ); } class ThemeProvider … Read more
Tiempo de lectura: < 1 minuto Reading Time: < 1 minute To create a search bar and filter a list, follow these simple steps: The list of elements we will display and filter is as follows: List<dynamic> tutorsData = [ { “name”: “Maria”, “email”: “example1_devcodelight@email.com”, “phone”: “1234567890” }, { “name”: “Laura”, “email”: “example2_devcodelight@email.com”, “phone”: “1234567890” }, { “name”: “Isma”, “email”: “example3_devcodelight@email.com”, … Read more
Tiempo de lectura: < 1 minuto Reading time: < 1 minute Hello everyone, today we are going to see how we can create a Flutter environment using Docker containers that will allow us to generate a build of our project. This environment will allow us to both develop and generate an APK or web with our Flutter project. The first thing ... Read more
Tiempo de lectura: < 1 minuto Reading time: < 1 minute Today we’re going to see how to solve the following error: Target dart2js failed: Exception: Warning: The 'dart2js' entrypoint script is deprecated, please use 'dart compile js' instead. Error: Cannot run with sound null safety, because the following dependencies don't support null safety: - package:http - package:http_parser This error is ... Read more
Tiempo de lectura: < 1 minuto Reading time: < 1 minute When making a GET request using Flutter and the Dart programming language, I encountered an error while trying to display certain data. The encoding error occurs when receiving information with some characters, and when displaying them in the user interface, they are not shown correctly. To fix the error shown ... Read more
Tiempo de lectura: 3 minutos Reading time: 3 minutes To create an example list where we can add an element, update the list, and also remove elements, follow these steps: First, we create the main Widget that we call from main, where we display the .dart class with the designed view. void main() => runApp(MyApp()); class MyApp extends StatelessWidget { … Read more
Tiempo de lectura: < 1 minuto Reading time: < 1 minutes The structure for making a call from Flutter to an API and sending parameters to receive data is as follows: First, we declare and initialize a variable with the API route, in this case, I call it uri: final uri = 'https://name/api/route'; Then, I declare the headers, content-type: final headers ... Read more
Tiempo de lectura: < 1 minuto Reading Time: < 1 minute The structure to make an API call and retrieve data in Flutter is as follows: First, declare and initialize a variable with the API endpoint, in this case, I’ll call it `uri`: final uri = ‘https://example.com/api’; Next, declare the headers, specifically the `Content-Type`: final headers = { ‘Content-Type’: ‘application/json’, }; … Read more
Tiempo de lectura: < 1 minuto html Copy code Reading time: < 1 minute When trying to run an application that makes an API call from Flutter, the following error occurs: Error: Cannot run with sound null safety, because the following dependenciesdon’t support null safety: package:http package:http_parser To fix this error, I followed these steps: First, in the Android Studio menu … Read more
