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MediaQuery and LayoutBuilder are both classes in Flutter that provide information about the layout and constraints of the app’s UI. However, they serve different purposes and have different use cases. MediaQuery: MediaQuery is a class that provides access to various properties related to the device’s screen, such as its size, orientation, and pixel density. It
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In the context of Flutter, a ticker refers to an animation controller provided by the Flutter framework. It is a crucial component for managing animations within a Flutter application. Animations in Flutter are typically driven by the hardware or software refresh rate of the device. To synchronize animations with the device’s refresh rate, Flutter uses
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To effectively use Flutter, the following skills are beneficial: Dart Programming: Flutter uses the Dart programming language as its primary language. It is essential to have a good understanding of Dart syntax, features, and concepts such as variables, functions, classes, and object-oriented programming (OOP) principles. Dart is relatively easy to learn if you have experience
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Flutter, a popular cross-platform framework for building mobile applications, offers several build modes to cater to different development and deployment needs. These build modes determine how your Flutter app is compiled and optimized for specific scenarios. Flutter provides the following build modes: Debug Mode: Debug mode is primarily used during development. When running your app
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Flutter, developed by Google, is a cross-platform UI toolkit that allows developers to build high-performance native applications for mobile, web, and desktop from a single codebase. Here are some of the major features of Flutter: Fast Development: Flutter enables rapid development with its hot reload feature, which allows developers to see the changes in real-time
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Both WidgetsApp and MaterialApp are classes in Flutter that serve as the entry point for building a Flutter application. They provide the necessary infrastructure for rendering widgets and managing the application’s theme and routing. However, there are some differences between the two: Material Design: MaterialApp is specifically designed to implement the Material Design guidelines, which
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AppLifecycleState is an enumeration in Flutter that represents the different states in the lifecycle of an application. It is part of the flutter/widgets.dart library. The AppLifecycleState enum has four possible values: In this example, MyWidget is a stateful widget that implements WidgetsBindingObserver to observe changes in the application’s lifecycle. The didChangeAppLifecycleState method is overridden to
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In Flutter, you can perform database queries using various approaches and packages. One commonly used package for database operations in Flutter is sqflite, which provides a simple way to interact with SQLite databases. Here’s an example of how you can perform a database query using sqflite: Add the sqflite package to your pubspec.yaml file: dependencies:
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Firebase Events are user interactions or actions that are tracked and recorded within a mobile or web application using Firebase Analytics. They provide valuable insights into how users engage with an app and allow developers and marketers to measure and analyze user behavior. Firebase Events are categorized into two types: predefined events and custom events.
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In the context of mobile app development using the Flutter framework, the Flutter Inspector is a powerful tool that helps developers analyze and debug their Flutter applications. It is an integrated tool that provides a visual representation of the app’s widget hierarchy, allows inspection of the properties and values of widgets, and assists in identifying
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Dart isolates are a concurrency mechanism in the Dart programming language that allow for the execution of multiple threads of control within a Dart application. Isolates enable concurrent execution without shared memory, meaning each isolate has its own memory space and runs independently of other isolates. This promotes safe and efficient parallel processing in Dart.
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In Flutter, the “arrow operator” (=>) is a shorthand syntax used to define concise one-line functions or expressions, often referred to as “fat arrow functions.” It provides a compact and readable way to define simple functions and closures. The arrow operator is typically used in two contexts: Function Definitions: When defining a function that consists
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