index.md

layout	title	permalink
page	Cookbook	/cookbook/

This cookbook contains recipes that demonstrate how to solve common problems while writing Flutter apps. Each recipe is self-contained and can be used as a reference to help you build up an application.

Design basics

• Using Themes to share colors and font styles
• Displaying SnackBars
• Working with Tabs
• Using custom fonts
• Exporting fonts from a package
• Add a Drawer to a screen
• Updating the UI based on orientation

Images

• Display images from the internet
• Fade in images with a placeholder
• Working with cached images

Lists

• Create a basic list
• Make a horizontal list
• Working with long lists
• Creating lists with different types of items
• Creating a grid List

Handling Gestures

• Handling Taps
• Adding Material Touch ripples
• Implement Swipe to Dismiss

Navigation

• Navigate to a new screen and back
• Send data to a new screen
• Return data from a screen
• Navigate with named routes
• Animating a Widget across screens

Animation

• Fade a Widget in and out

Networking

• Fetch data from the internet
• Making authenticated requests
• Working with WebSockets
• Parsing JSON in the background

Persistence

• Storing key-value data on disk
• Reading and Writing Files

Forms

• Create and style a text field
• Retrieve the value of a text field
• Handling changes to a text field
• Focus a text field
• Building a form with validation

Testing

Unit Tests

• Introduction to unit testing
• Mock dependencies using Mockito

Widget Tests

• Introduction to Widget testing
• Finding Widgets in a Widget Test
• Tapping and Dragging in Widget Tests

App Maintenance

• Report errors to a service