Category: Flutter

sensors_plus is a more up-to-date and widely-used package for accessing various sensors on mobile devices with flutter. To use sensors_plus, first add the package to your pubspec.yaml file: https://pub.dev/packages/sensors_plus dependencies: sensors_plus: ^0.2.6 Then, import the package in your Dart file: import ‘package:sensors_plus/sensors_plus.dart’; You can access different types of sensors using the SensorManager class: void main()…

There are two primary ways to supply an initial value to a text field in Flutter, depending on the widget you are using: Using a TextEditingController (Recommended for state management)1 Using the initialValue property (For stateless fields)2 1. Using a TextEditingController 📝 The most common and flexible way is to use a TextEditingController and set…

You can have an implementation of an icon like a profile photo with a number (a profile photo with a small circular badge overlay in the bottom-right) in Flutter by using a Stack with a Positioned widget. Here’s a complete example 👇: ✅ Flutter Implementation Example import ‘package:flutter/material.dart’; class ProfileWithAlertIcon extends StatelessWidget { @override Widget…

What is this new 16k Android Requirement. How does it affect me (Flutter App Developer) – this is one of the stoppers for Publishing Apps on Google Play? Android has historically used 4KB memory pages for managing RAM allocation (the smallest unit the OS uses to track and swap memory). However, many modern ARM64 CPUs…

To make Flutter Bloc logic testable, extract business logic into service methods or classes, isolating it from state management. This guide provides a step-by-step approach with examples. 1. Understand the Goal Why extract logic? Blocs often mix business logic (e.g., API calls, data processing) with state management, making them hard to test. Extracting logic into…

There are several methods you can create screenshots of a Flutter app, depending on whether you want manual screenshots, automated screenshots, or marketing-ready assets. Here’s a breakdown: 📱 1. Manual Screenshots Device Emulator/Simulator Run your app in Android Emulator or iOS Simulator, then use their built-in screenshot tools. Android Studio → Device Manager → Take…

What could be the reason Flutter UI with UI elements positioned correctly on your devices, but are not placed correctly on Samsung Devices? Possible Reasons for Positioning Differences in Flutter UI Flutter is designed to provide pixel-perfect rendering across devices by using logical pixels (via MediaQuery), which abstracts away physical differences in screen density, size,…

Let’s go step by step on how to implement an autocomplete text field in Flutter without any plugins, using only built-in widgets. I’ll show you two main approaches: ✅ With preloaded items (local list) — simplest version. 🌐 With backend fetching (async suggestions) — slightly more advanced. 🧰 1. Autocomplete with Preloaded Items (Local List)…

Flutter is a powerful framework for building cross-platform apps, but low-resource devices (e.g., those with 1-2GB RAM, older CPUs, or limited storage) can struggle with memory leaks, slow rendering, and high battery drain. Optimization focuses on reducing CPU/GPU load, minimizing memory usage, and ensuring smooth 60fps rendering (aim for frames under 16ms, ideally 8ms for…