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<topic_start>
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How it works
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When hot reload is invoked, the host machine looks
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at the edited code since the last compilation.
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The following libraries are recompiled:The source code from those libraries is compiled into
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kernel files and sent to the mobile device’s Dart VM.The Dart VM re-loads all libraries from the new kernel file.
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So far no code is re-executed.The hot reload mechanism then causes the Flutter framework
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to trigger a rebuild/re-layout/repaint of all existing
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widgets and render objects.
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<topic_end>
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<topic_start>FAQ
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<topic_end>
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<topic_start>
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Introduction
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This page collects some common questions asked about
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Flutter. You might also check out the following
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specialized FAQs:<topic_end>
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<topic_start>
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What is Flutter?
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Flutter is Google’s portable UI toolkit for crafting beautiful,
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natively compiled applications for mobile, web,
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and desktop from a single codebase.
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Flutter works with existing code,
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is used by developers and organizations around
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the world, and is free and open source.<topic_end>
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<topic_start>
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Who is Flutter for?
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For users, Flutter makes beautiful apps come to life.For developers, Flutter lowers the bar to entry for building apps.
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It speeds app development and reduces the cost and complexity
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of app production across platforms.For designers, Flutter provides a canvas for
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high-end user experiences. Fast Company described
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Flutter as one of the top design ideas of the decade for
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its ability to turn concepts into production code
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without the compromises imposed by typical frameworks.
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It also acts as a productive prototyping tool
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with drag-and-drop tools like FlutterFlow
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and web-based IDEs like Zapp!.For engineering managers and businesses,
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Flutter allows the unification of app
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developers into a single mobile, web,
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and desktop app team, building branded
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apps for multiple platforms out of a single codebase.
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Flutter speeds feature development and synchronizes
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release schedules across the entire customer base.<topic_end>
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<topic_start>
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How much development experience do I need to use Flutter?
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Flutter is approachable to programmers familiar with
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object-oriented concepts (classes, methods, variables,
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etc) and imperative programming concepts (loops,
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conditionals, etc).We have seen people with very little programming
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experience learn and use Flutter for prototyping
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and app development.<topic_end>
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<topic_start>
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What kinds of apps can I build with Flutter?
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Flutter is designed to support mobile apps that run
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on both Android and iOS, as well as interactive apps
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that you want to run on your web pages or on the desktop.Apps that need to deliver highly branded designs
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are particularly well suited for Flutter.
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However, you can also create pixel-perfect experiences
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that match the Android and iOS design languages with Flutter.Flutter’s package ecosystem supports a wide
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variety of hardware (such as camera, GPS, network,
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and storage) and services (such as payments, cloud
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storage, authentication, and ads).<topic_end>
|
<topic_start>
|
Who makes Flutter?
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Flutter is an open source project,
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with contributions from Google and other
|
companies and individuals.<topic_end>
|
<topic_start>
|
Who uses Flutter?
|
Developers inside and outside of Google use
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Flutter to build beautiful natively-compiled
|
apps for iOS and Android. To learn about some
|
of these apps, visit the showcase.<topic_end>
|
<topic_start>
|
What makes Flutter unique?
|
Flutter is different than most other options
|
for building mobile apps because it doesn’t rely
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on web browser technology nor the set of widgets
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that ship with each device. Instead, Flutter uses
|
its own high-performance rendering engine to draw widgets.In addition, Flutter is different because it only
|
has a thin layer of C/C++ code. Flutter implements
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most of its system (compositing, gestures, animation,
|
framework, widgets, etc) in Dart (a modern,
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concise, object-oriented language) that developers
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can easily approach read, change, replace, or remove.
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This gives developers tremendous control over the system,
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as well as significantly lowers the bar to approachability
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for the majority of the system.<topic_end>
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<topic_start>
|
Should I build my next production app with Flutter?
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Flutter 1 was launched on Dec 4th, 2018,
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Flutter 2 on March 3rd, 2021, and
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Flutter 3 on May 10th, 2023.
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As of May 2023, over one million apps have shipped using
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Flutter to many hundreds of millions of devices.
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Check out some sample apps in the showcase.Flutter ships updates on a roughly-quarterly
|
cadence that improve stability and performance
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and address commonly-requested user features.<topic_end>
|
<topic_start>
|
What does Flutter provide?
|
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