Flutter Blogs

  The Card widget in Flutter is one of the most widely used and flexible widgets for building material design UIs. Cards are commonly used to represent a piece of information, often with a rounded rectangular shape, that includes text, images, icons, or any combination of these elements. In Flutter, the Card widget provides a simple way to design beautiful and structured content blocks. What is the Flutter Card Widget? The Card widget in Flutter is a material design container that has a rectangular shape with rounded corners and a subtle shadow to create a sense of elevation. Cards are often used to display information or content that’s visually distinct, such as items in a list or grid. The Card widget typically wraps other widgets (like Text , Image , or Column ) to create visually appealing sections in your UI. You can also customize its appearance to match your app’s design and theme. Basic Structure of a Card Card( elevation: 4.0, shape: RoundedRectangleBorder(borderRad...

In Flutter, building interactive and intuitive UIs is made easier with widgets that provide various interactive functionalities. One such widget is the Radio Button . Radio buttons are used when you want to allow users to select a single option from a predefined set of choices. When a user selects one option, all other options in the same group are automatically deselected. This behavior is typically used in forms, surveys, and settings screens. What is a Radio Button? A Radio Button is a UI element that lets the user select one option from a set of mutually exclusive options. All the options in a group are associated with a single groupValue , which ensures that only one option can be selected at a time. When a user selects a radio button, its value is returned, and the widget updates its appearance to show the selected state. Flutter provides the Radio widget to implement this functionality. The Radio Widget in Flutter In Flutter, the Radio widget is part of the flutter/material...

In mobile development, creating scrollable content is a common requirement. For instance, if you have a UI where a user might need to scroll through a list or see content that exceeds the screen size, you need a scrollable widget. Flutter provides various widgets for scrolling, and one of the most commonly used is the SingleChildScrollView . What is SingleChildScrollView ? SingleChildScrollView is a simple but useful widget in Flutter that allows for scrolling through a single child widget that may exceed the available space. Unlike the ListView or GridView , which are used to handle lists or grids of items, the SingleChildScrollView is best suited for scrolling a single child widget when you want to avoid breaking your content into multiple smaller widgets. Why Use SingleChildScrollView ? Consider a scenario where you want to display a form, a large image, or a long text content in a screen. If the content exceeds the screen’s size, the widget would overflow without a scrollable co...

  In Flutter, the Chip widget is an excellent way to display compact elements, such as tags, categories, or interactive buttons. It allows you to present information in a clean, concise manner while offering a variety of customization options. Chips can also be interactive, allowing users to perform actions like selection or deletion. What is the Flutter Chip Widget? A Chip is a small, interactive UI element that typically displays a label (text) and can optionally include an icon or an action (e.g., delete or select). It is often used for representing tags, contacts, or choices in a compact form. Basic Syntax of the Chip Widget Here’s a simple example of the Chip widget: Chip( label: Text('Flutter Chip'), ) This basic chip consists of just a label with the text "Flutter Chip." The Chip widget is used for displaying simple pieces of information, often within lists, forms, or filters. Types of Chips in Flutter Flutter provides several types of chips, each serving...

  One of the most commonly used widgets in Flutter is the Text widget. It's used to display a string of text on the screen, and it provides a wide range of customization options to suit various design needs. What is the Flutter Text Widget? The Text widget is a simple yet essential widget in Flutter that allows developers to display text content in their applications. It is highly customizable, enabling you to adjust text style, alignment, overflow handling, and much more. Here’s the basic syntax of the Text widget: Text( 'Your text goes here', style: TextStyle(fontSize: 20, color: Colors.black), ) In this simple example, the Text widget is displaying the string "Your text goes here" with a font size of 20 and a color of black. Basic Example: Displaying a Simple Text Let's look at a basic example where we display a simple string using the Text widget. Text( 'Hello, Flutter!', style: TextStyle( fontSize...

  In Flutter, the Container widget is one of the most commonly used and versatile widgets. It allows you to create a box model in your app's layout. You can use it to apply padding, margins, borders, backgrounds, and much more. If you're just starting with Flutter, the Container widget is an essential concept to master, as it plays a significant role in building flexible and customized UIs. What is the Container Widget? A Container in Flutter is a box model widget that can contain a single child widget and is used to customize and style the layout. You can think of it as a "wrapper" that gives you the ability to control the size, position, decoration, and many other aspects of its child widget. The Container widget doesn’t have a visual representation on its own but instead applies the customizations to its child widget. Common Use Cases for Container Adding padding or margin around a widget. Setting a fixed height, width, or both. Adding background color or image...

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...