Flutter Blogs

The TextField widget is a cornerstone of user input in Flutter applications. Whether you're building a login screen, a chat application, or a search bar, the TextField provides a flexible and feature-rich way to capture user data. What is a TextField in Flutter? In Flutter, TextField is a widget that allows users to input text. It is one of the most commonly used widgets for form fields, chat input, or search functionality. Example Use Case: A login form to capture the username and password. A search bar in an e-commerce app. A chat input field in a messaging app. Basic TextField Usage To use a TextField , simply include it in your widget tree. Here's a minimal example: TextField( decoration: InputDecoration( labelText: 'Enter your name', hintText: 'John Doe', border: OutlineInputBorder(), ), ), Explanation labelText : Adds a label above the input field. hintText : Displays placeholde

  Widget Life Cycle In Flutter Flutter has two types of widgets Stateless Widget, and Stateful Widget. Stateless Widget Stateless Widgets are rendered only once when the widget is loaded. We can't rebuild a Stateless widget based on any user events or changes. Stateful Widgets Stateful Widgets can be rebuilt and have their own Widget Lifecycle to create, update and destroy the widgets. In Flutter, widgets have several lifecycle methods that the framework calls during different stages of their lifecycle. Here are the most important ones: createState(): This method is called during the construction stage of a Stateful widget and creates a corresponding state object. initState(): This method is called during the initialization stage of stateful widget and is used to initialize any resources the widget needs. didChangeDependencies(): This method is called during the dependecies resolution stage of a widget, and is used to handle any changes to the widget's dependencies. build():

 Sync & Async Flutter Asynchronous (async) and synchronous (sync) programming are fundamental concepts in modern   software development, especially in mobile application development using Flutter.   Synchronous Programming Synchronous programming, often referred to as "sync," is a straightforward approach where tasks are executed sequentially. In this model, each task waits for the previous one to complete before it starts. This can lead to a blocking operation where the application becomes unresponsive if a task takes a long time to complete.   Example:    void main() {   print('Task 1');   print('Task 2');   print('Task 3'); } Output Task 1 Task 2 Task 3 Each task waits for the previous one to complete, ensuring a predictable and ordered execution.   Asynchronous Programming   Asynchronous programming, or "async," allows multiple tasks to run concurrently without waiting for each other to complete. This is partic

  Exploring the URL Launcher Package in Flutter: A Comprehensive Guide Introduction: In the world of Flutter app development, integrating external functionalities like opening URLs, making phone calls, sending emails, and more is essential for creating robust and user-friendly applications. This is where the URL Launcher package comes into play. This package provides a simple and efficient way to interact with external resources and services directly from your Flutter app. What is a URL Launcher? The URL Launcher package is a Flutter plugin that allows developers to launch various types of URLs and perform actions such as opening web pages, making phone calls, sending emails, and launching map applications. It abstracts the platform-specific code required for these tasks, making it easy to incorporate these functionalities into your Flutter apps regardless of the platform (Android or iOS). Installation: To start using the URL Launcher package in your Flutter project, follow these simpl