The idea behind hot reloading is to keep the app running and to inject new versions of the files that you edited at runtime. This way, you don’t lose any of your state which is especially useful if you are making the UI changes. Live reloading will reload the whole app and completely reinitialize the state.

What does Hot reload mean?

1. Hot Reload. Hot reload just displays the code changes according to new code changes without restarting the app from the start and its effects only on the changed code or change will only apply to a specific component. NOTE: Hot reload will not work sometimes if you are deep in your navigation.

Whats the difference between live reloading and hot reloading?

The difference between the two is, Live Reloading is gonna reload your entire application. It’s just gonna be like, okay, the file changed, reload the entire app. Hot Reloading is not gonna reload your entire application. It’s just going to patch the code that was changed and keep the state in your app.

How does react hot reloading work?

React Hot Loader is a React library used to edit your code and automatically reflect that change in your running app while keeping the components mounted, which means you don’t need to refresh your browser and you won’t lose your current state.

What is hot reload Flutter?

Hot reload loads code changes into the VM and re-builds the widget tree, preserving the app state; it doesn’t rerun main() or initState() . ( ⌘\ in Intellij and Android Studio, ⌃F5 in VSCode) Hot restart loads code changes into the VM, and restarts the Flutter app, losing the app state. (

How do I turn on hot reload?

Enable Hot Reload when starting without debugging.

Enables Hot Reload when starting without the debugger attached (Ctrl+F5).

Why Flutter vs React Native?

Currently, Flutter supports Android 4.1+ or iOS 8+, while React Native supports Android 4.1+ and iOS 10+. The biggest difference between React Native and Flutter is that Flutter has plugins developed by the Google team, like geolocation and mapping.

What is react fast refresh?

Fast Refresh is a React Native feature that allows you to get near-instant feedback for changes in your React components. Fast Refresh is enabled by default, and you can toggle “Enable Fast Refresh” in the React Native developer menu. With Fast Refresh enabled, most edits should be visible within a second or two.

Does react support hot reload?

React Hot Loader is a plugin that allows React components to be live reloaded without the loss of state. It works with Webpack and other bundlers that support both Hot Module Replacement (HMR) and Babel plugins.

What is learn once write anywhere?

With React Native, the new paradigm is “learn once, write anywhere.” With this approach, an experienced web React developer can get up and running, and write Android or iOS apps at a much faster pace. Currently, there is a little to no code sharing possible between React apps on the web, Android, and iOS React apps.

How does Dart AOT work?

Dart Native (machine code JIT and AOT)

Your AOT-compiled app launches with consistent, short startup time. The AOT-compiled code runs inside an efficient Dart runtime that enforces the sound Dart type system and manages memory using fast object allocation and a generational garbage collector.

What is the advantage of Flutter?

One of the biggest advantages of Flutter is cross-platform development, which developers can build attractive apps in iOS and Android platforms simultaneously. In addition, Flutter programming saves more time and money than native development.

Can you nest a scaffold?

Yes, you can absolutely nest a Scaffold . That’s the beauty of Flutter. You control the entire UI. Scaffold is just a widget, so you can put it anywhere a widget might go.

What is Flutter child?

child. The child contained by the container. If null, and if the constraints are unbounded or also null, the container will expand to fill all available space in its parent, unless the parent provides unbounded constraints, in which case the container will attempt to be as small as possible.

What is Flutter state?

State is information that (1) can be read synchronously when the widget is built and (2) might change during the lifetime of the widget. It is the responsibility of the widget implementer to ensure that the State is promptly notified when such state changes, using State. setState.

What is a Flutter scaffold?

The Scaffold is a widget in Flutter used to implements the basic material design visual layout structure. It is quick enough to create a general-purpose mobile application and contains almost everything we need to create a functional and responsive Flutter apps. This widget is able to occupy the whole device screen.

What is a stateless widget?

A stateless widget cannot change its state during the runtime of a Flutter application. That means a stateless widget cannot be redrawn while the app is in action. For that reason, the appearance and properties remain unchanged throughout the lifetime of the widget.

What can I use instead of scaffold in Flutter?

MaterialApp is the starting point of your app, it tells Flutter that you are going to use Material components and follow material design in your app. Scaffold is used under MaterialApp , it gives you many basic functionalities, like AppBar , BottomNavigationBar , Drawer , FloatingActionButton etc.

What is stateful and stateless in Flutter?

A widget is either stateful or stateless. If a widget can change—when a user interacts with it, for example—it’s stateful. A stateless widget never changes. Icon , IconButton , and Text are examples of stateless widgets.

What are hooks in Flutter?

Flutter Hooks is an implementation of React hooks that provide a robust and simple way to manage Widget life-cycle by increasing code sharing and reducing duplication. Hooks original source comes from React where they are popular and were adapted by the community.

How many types of widgets are there in Flutter?

two types

Types of Widgets: There are broadly two types of widgets in the flutter: Stateless Widget. Stateful Widget.

What is super key key in Flutter?

super(key: key) forwards to the constructor of the super class and passes the parameter key passed to MyHomepage to the super constructors key parameter (same as for MyHomepage({Key key}) ).

What is initializer list in Dart?

An initializer list allows you to assign properties to a new instance variables before the constructor body runs, but after creation. This is handy when you want to set a final variables value, but the value isn’t a compile-time constant.

What is override in Flutter?

The @override annotation applies to instance methods, instance getters, instance setters and instance variables (fields). When applied to an instance variable, it means that the variable’s implicit getter and setter (if any) are marked as overriding. It has no effect on the variable itself.

What are Mixins in Flutter?

Mixins are a way of reusing a class’s code in different class hierarchies. For example, you might have a class called Employee which has methods like clockIn . The code in those classes may be useful for both Bartender and Nurse .

Why You Should Use mixins?

Mixins encourage code reuse and can be used to avoid the inheritance ambiguity that multiple inheritance can cause (the “diamond problem”), or to work around lack of support for multiple inheritance in a language. A mixin can also be viewed as an interface with implemented methods.

What is polymorphism in Dart?

The polymorphism is a combination of the two Greek words poly, which means many and morph means morphing into different forms or shapes. Together, polymorphism means the same entity can be used in various forms. In the programming aspect, the same method can be used in different classes.