All Samples
A curated list of Flutter samples and apps
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...
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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...
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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...
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Infinite List
A Flutter sample app that shows an implementation of the "infini...
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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...
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Provider Shopper
A Flutter sample app that shows a state management approach usin...
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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.
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Navigation and Routing
A Flutter sample app that shows how to use how to use the Router...
demo
Charts
A general-purpose charting library.
demo
GitHub Dataviz
A visualization for Flutter repository data
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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 ...
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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 ...
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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 ...
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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...
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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 ...
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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...