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Material and Cupertino are design languages used in different UI frameworks. Material Design is a design language developed by Google. It focuses on creating a visually appealing, consistent, and intuitive user interface across different platforms, including Android, iOS, and the web. Material Design uses principles such as material surfaces, elevation, animations, and typography to create
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The event loop is a core component of many programming frameworks and environments, including those used for asynchronous programming. It manages the flow of events and callbacks in a non-blocking manner, allowing programs to efficiently handle concurrent operations and I/O operations without blocking the execution of other code. At a high level, the event loop
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In Flutter, mainAxisAlignment and crossAxisAlignment are properties commonly used in container widgets to control the alignment of their children. They are particularly useful in Row and Column widgets, which are used to arrange and position widgets horizontally and vertically, respectively. Here’s a brief explanation of when to use each property: mainAxisAlignment: This property determines how
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In Flutter, the keyword await is used in conjunction with the async keyword to handle asynchronous operations. When you mark a function with the async keyword, it means that the function can perform tasks asynchronously. Inside an async function, you can use the await keyword to pause the execution of the function until a particular
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The type of animation that allows you to represent real-world behavior is called “realistic animation” or “physically-based animation.” Realistic animation aims to simulate the movement, behavior, and physics of objects in a manner that closely resembles real-world dynamics. It takes into account principles such as gravity, friction, collisions, and other physical properties to create animations
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Cloud Functions for Firebase is a serverless computing platform provided by Google Firebase. It allows you to write and deploy small blocks of code, known as functions, that can be triggered by events and executed in a serverless environment. Cloud Functions for Firebase enables you to build backend functionality for your mobile or web applications
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Firebase provides a set of libraries known as the Firebase Framework Libraries, which are used in conjunction with the Firebase SDKs. These libraries offer additional functionalities and convenience methods to interact with Firebase services. Here are some of the Firebase Framework Libraries: Firebase Authentication: This library provides APIs for handling user authentication and authorization. It
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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 Flutter, DevTools is a powerful set of developer tools that help with debugging, profiling, and analyzing Flutter applications. It provides a graphical user interface (GUI) that allows developers to inspect and diagnose their Flutter app’s performance, state, and behavior. Here are some key features and functionalities of Flutter DevTools: Widget Inspector: It allows you
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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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Reducing widget rebuilds can help improve the performance and efficiency of your Flutter application. Here are some strategies to minimize unnecessary widget rebuilds: Use const Constructors: When creating widgets, consider using const constructors whenever possible. Widgets created with const constructors are immutable and won’t rebuild unless their properties change. This can help prevent unnecessary rebuilds
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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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