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Ben Konyi 3595e7dad0
[ Widget Preview ] Add support for theme and brightness properties on Preview (#167001) 
The `theme` parameter of `Preview(...)` allows for developers to provide
a callback that returns a `PreviewThemeData` instance which can contain
theming data for Material and Cupertino widgets in both light and dark
modes. The provided theme data will be injected into the widget tree and
applied to the previewed widget.

The `brightness` parameter allows for developers to specify an initial
brightness setting (e.g., light vs dark mode) for the previewed widget.
If not provided, the current system default is used.

A new button has also been added to each widget preview card that allows
for toggling between light and dark mode for individual previews.

**Demo:**


https://github.com/user-attachments/assets/f0a4a3bc-25d2-49b0-a5f6-9149eccfc1d4

Fixes https://github.com/flutter/flutter/issues/166436
Fixes https://github.com/flutter/flutter/issues/166275
Fixes https://github.com/flutter/flutter/issues/166279
Fixes https://github.com/flutter/flutter/issues/166437
2025-04-15 17:51:40 +00:00
..
android
Convert AppLinkSettings to kotlin (#164391)
2025-03-11 17:00:17 +00:00
ios
[flutter_tools] opt iOS/macOS apps out of Metal API validation via migrator, update templates in repo. (#159228)
2024-11-21 01:36:55 +00:00
lib
Auto-format Framework (#160545)
2024-12-19 20:06:21 +00:00
test
Auto-format Framework (#160545)
2024-12-19 20:06:21 +00:00
test_driver
Auto-format Framework (#160545)
2024-12-19 20:06:21 +00:00
l10n.yaml
Check that localization files of stocks app are up-to-date (#161608)
2025-01-14 20:47:08 +00:00
pubspec.yaml
[ Widget Preview ] Add support for theme and brightness properties on Preview (#167001)
2025-04-15 17:51:40 +00:00
README.md
…

README.md

Stocks

Demo app for the Material Design widgets and other features provided by Flutter.

Building

You can follow these instructions to build the stocks app and install it onto your device.

Prerequisites

If you are new to Flutter, please first follow the Flutter Setup guide.

Building and installing the stocks demo app

  • cd $FLUTTER_ROOT/examples/stocks
  • flutter pub get
  • flutter run --release

The flutter run --release command both builds and installs the Flutter app.

Internationalization

This app has been internationalized (just enough to show how it's done). It's an example of how one can do so with the gen_l10n tool.

See regenerate.md for an explanation for how the tool is used to generate localizations for this app.

Icon

The icon was created using Android Asset Studio: https://romannurik.github.io/AndroidAssetStudio/icons-launcher.html#foreground.type=image&foreground.space.trim=0&foreground.space.pad=0&foreColor=607d8b%2C0&crop=0&backgroundShape=square&backColor=fff%2C100&effects=none

From this clipart: https://openclipart.org/detail/30403/tango-go-up Which is in the public domain.