All Samples
A curated list of Flutter samples and apps
demo
Game Template
This is a game template that shows how to build much of the dres...
demo
Gallery
A collection of material design widgets, behaviors, and vignette...
sample
Add to App
Android and iOS projects that each import a standalone Flutter m...
sample
Animations
Sample apps that showcasing Flutter's animation features.
sample
Flutter Maps Firestore
A Flutter sample app that shows the end product of the Cloud Nex...
sample
Isolate Example
A sample application that demonstrate best practices when using ...
sample
jsonexample
A Flutter sample app that deserializes a set of JSON strings usi...
sample
Place Tracker
A sample place tracking app that uses the google_maps_flutter pl...
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Platform Design
A Flutter app that maximizes application code reuse while adheri...
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Platform View Swift
A Flutter sample app that combines a native iOS UIViewController...
sample
Infinite List
A Flutter sample app that shows an implementation of the "infini...
sample
IOS App Clip
A Flutter sample app that shows the demonstrating integration wi...
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Testing App
A Flutter sample app that shows different types of testing in Fl...
sample
Provider Shopper
A Flutter sample app that shows a state management approach usin...
sample
Web Dashboard
A dashboard app that displays daily entries. Demonstrates Adapti...
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Form App
A Flutter sample app that shows how to use Forms.
sample
Navigation and Routing
A Flutter sample app that shows how to use how to use the Router...
sample
Photo Search app
This is the Photo Search app, built out with two different widge...
demo
Rich Text Editor
This is a fancy text editor sample which shows how to consume fi...
demo
Material You
This is a brochure of common Material widgets, styled with the n...
demo
Charts
A general-purpose charting library.
demo
GitHub Dataviz
A visualization for Flutter repository data
demo
Particle Background
Flutter app demonstrating package:simple_animations in action.
demo
Slide Puzzle
A slide puzzle built for Flutter Challenge.
demo
Dice
A demo of 3d animation using dice
cookbook
Animate a page route transition
A design language, such as Material, defines standard behaviors ...
cookbook
Animate a widget using a physics simulation
Physics simulations can make app interactions feel realistic and...
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Animate the properties of a container
The Container class provides a convenient way
to create a widget...
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Fade a widget in and out
UI developers often need to show and hide elements on screen.
Ho...
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Add a Drawer to a screen
In apps that use Material Design,
there are two primary options ...
cookbook
Display a snackbar
It can be useful to briefly inform your users when certain actio...
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Export fonts from a package
Rather than declaring a font as part of an app,
you can declare ...
cookbook
Update the UI based on orientation
In some situations,
you want to update the display of an app whe...
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Use a custom font
Although Android and iOS offer high quality system fonts,
one of...
cookbook
Use themes to share colors and font styles
To share colors and font styles throughout an app, use themes.
Y...
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Work with tabs
Working with tabs is a common pattern in apps that follow the
Ma...
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Build a form with validation
Apps often require users to enter information into a text field....
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Create and style a text field
Text fields allow users to type text into an app.
They are used ...
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Focus and text fields
When a text field is selected and accepting input,
it is said to...
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Handle changes to a text field
In some cases, it’s useful to run a callback function every time...
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Retrieve the value of a text field
In this recipe,
learn how to retrieve the text a user has entere...
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Add Material touch ripples
Widgets that follow the Material Design guidelines display
a rip...
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Handle taps
You not only want to display information to users,
you want user...
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Implement swipe to dismiss
The “swipe to dismiss” pattern is common in many mobile apps.
Fo...
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Display images from the internet
Displaying images is fundamental for most mobile apps.
Flutter p...
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Fade in images with a placeholder
When displaying images using the default Image widget,
you might...
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Work with cached images
In some cases, it’s handy to cache images as they’re downloaded ...
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Create a grid list
In some cases, you might want to display your items as a grid ra...
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Create a horizontal list
You might want to create a list that scrolls
horizontally rather...
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Create lists with different types of items
You might need to create lists that display different types of c...
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Place a floating app bar above a list
To make it easier for users to view a list of items,
you might w...
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Use lists
Displaying lists of data is a fundamental pattern for mobile app...
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Work with long lists
The standard ListView constructor works well
for small lists. To...
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Report errors to a service
While one always tries to create apps that are free of bugs,
the...
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Animate a widget across screens
It’s often helpful to guide users through an app as they navigat...
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Navigate to a new screen and back
Most apps contain several screens for displaying different types...
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Navigate with named routes
In the Navigate to a new screen and back recipe,
you learned how...
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Pass arguments to a named route
The Navigator provides the ability to navigate
to a named route ...
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Return data from a screen
In some cases, you might want to return data from a new screen.
...
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Send data to a new screen
Often, you not only want to navigate to a new screen,
but also p...
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Delete data on the internet
This recipe covers how to delete data over
the internet using th...
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Fetch data from the internet
Fetching data from the internet is necessary for most apps.
Luck...
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Make authenticated requests
To fetch data from most web services, you need to provide
author...
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Parse JSON in the background
By default, Dart apps do all of their work on a single thread.
I...
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Send data to the internet
Sending data to the internet is necessary for most apps.
The htt...
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Update data over the internet
Updating data over the internet is necessary for most apps.
The ...
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Work with WebSockets
In addition to normal HTTP requests,
you can connect to servers ...
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Persist data with SQLite
If you are writing an app that needs to persist and query large ...
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Read and write files
In some cases, you need to read and write files to disk.
For exa...
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Store key-value data on disk
If you have a relatively small collection of key-values
to save,...
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Play and pause a video
Playing videos is a common task in app development,
and Flutter ...
cookbook
Take a picture using the camera
Many apps require working with the device’s cameras to
take phot...
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An introduction to integration testing
Unit tests and widget tests are handy for testing individual cla...
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Handle scrolling
Many apps feature lists of content,
from email clients to music ...
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Performance profiling
When it comes to mobile apps, performance is critical to user ex...
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An introduction to unit testing
How can you ensure that your app continues to work as you
add mo...
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Mock dependencies using Mockito
Sometimes, unit tests might depend on classes that fetch data fr...
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An introduction to widget testing
In the introduction to unit testing recipe,
you learned how to t...
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Find widgets
To locate widgets in a test environment, use the Finder
classes....
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Tap, drag, and enter text
Many widgets not only display information, but also respond
to u...