A collection of simple, bare-bones Flutter apps that each demonstrate a concept

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Open Source Apps dart flutter dartlang
Overview

flutter-by-example

A collection of simple, bare-bones Flutter apps that each demonstrate a concept

The apps are slowly being updated to Dart 2; be sure to use the --preview-dart-2 flag when running/compiling these examples

Apps

  1. Hello World: one-line Flutter app Updated for Dart 2
  2. Material Navigation: two screen Flutter that demonstrates navigation using Material
    • (2.1) Routing with data: passing data between navigation routes
  3. TextField: example of a simple single-line text field and a multi-line text field with a submit button
  4. HTTP: fetching text and images over http
  5. Layouts: example widget Layouts
  6. Lists: example list view
    • (6.1) Dynamic lists: create a dynamic (infinite) list with dividers
  7. Stacks: how to render widgets at set positions in a stack
  8. Inherited Widgets: how to use inherited widgets to pass data down a widget tree
  9. i18n: simple example of i18n support in Flutter
  10. Driver Testing: a simple demonstration driver test
  11. JSON Parsing: parses a JSON network response
  12. Streams: handle state updates using streams
    • (12.1) StreamBuilder: handle state updates using StreamBuilder
    • (12.2) RxDart: handle state updates using StreamBuilder with Observables
    • (12.3) JSON with Streams: HTTP and JSON parsing using streams
  13. Bottom Nav Bar: Simple bottom nav bar implementation, using Stack and OffStage
  14. Custom Painter: implements a basic bar chart using a custom painter
  15. Tabs: tabbed pages demo

Flutter Docs

For help getting started with Flutter, view Flutter's online documentation.

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Comments
  • Bottom Nav Bar does not show if there are four or more items

    Bottom Nav Bar does not show if there are four or more items

    Trying out this example:

    https://github.com/mjohnsullivan/flutter-by-example/tree/master/13_bottom_nav_bar

    When I add in two more BottomNavigationBarItem to four, the bottom navigation bar does not display on the screen but you can still tap on it to navigate through the various Offstage widget.

    bug 
    opened by jaxondu 2
  • Any advice or idea how to make one of the panel go up?

    Any advice or idea how to make one of the panel go up?

    I'm trying to implement this feature, but got stuck here. If you could just maybe point me to a couple of lines of code and what to do with them.

    https://imgur.com/EumaW82 https://imgur.com/0aNY9xk

    As you can see the panel goes up to show the cart when the arrow is clicked.

    opened by Hamza-Imran75 0
  • Backdrop: Layout Issues with front Panel on iPhone X

    Backdrop: Layout Issues with front Panel on iPhone X

    When I set frontPanelOpenHeight to 0 so that the closed front Panel takes up the whole space I get some Layout Issues on iPhone X. The bottom part of the screen isn't used by the front Panel Bildschirmfoto 2019-04-19 um 23 29 27

    I don't have this problem on an iPhone 8 so it has definitely something to do with the "home button" of the iPhone X. Could someone help?

    opened by leondroidgeeks 0
  • Just have a question about StreamBuilder

    Just have a question about StreamBuilder

    Hi John, I watched your presentation on Google I/O 2018 about Reactive with Flutter. About StreamBuilder, do this make the ui rebuilt even just Navigates to another screen?

    I download the Cart Bloc source code from Filiph Github, and put print statement inside StreamBuilder function of Cart Count, and if i navigate to Shopping Cart Screen, It rebuilds the Cart Count Widget.

    Please take a look on image below jun-04-2018 14-59-06

    question 
    opened by penjual 1
Owner
Matt Sullivan
Matt Sullivan
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