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Bumps [go_router](https://github.com/flutter/packages/tree/main/packages) from 8.2.0 to 9.0.0. <details> <summary>Commits</summary> <ul> <li><a href="6b70804799"><code>6b70804</code></a> [go_router] Reduces excessive rebuilds due to inherited look up. (<a href="https://github.com/flutter/packages/tree/main/packages/issues/4227">#4227</a>)</li> <li><a href="f55d455f0d"><code>f55d455</code></a> [image_picker] Update to 1.0 (<a href="https://github.com/flutter/packages/tree/main/packages/issues/4285">#4285</a>)</li> <li><a href="25e1d87113"><code>25e1d87</code></a> [file_selector] Add file group to save return value (<a href="https://github.com/flutter/packages/tree/main/packages/issues/4222">#4222</a>)</li> <li>See full diff in <a href="https://github.com/flutter/packages/commits/go_router-v9.0.0/packages">compare view</a></li> </ul> </details> <br /> [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) </details> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
provider_shopper
A Flutter sample app that shows a state management approach using the Provider package. This is the app discussed in the Simple app state management section of flutter.dev.
Goals for this sample
- Show simple use of
Providerfor providing an immutable value to a subtree - Illustrate a simple state management approach using the ChangeNotifier class
- Show use of
ProxyProviderfor provided objects that depend on other provided objects
The important bits
lib/main.dart
Here the app sets up objects it needs to track state: a catalog and a shopping cart. It builds
a MultiProvider to provide both objects at once to widgets further down the tree.
The CartModel instance is provided using a ChangeNotifierProxyProvider, which combines
two types of functionality:
- It will automatically subscribe to changes in
CartModel(if you only want this functionality simply useChangeNotifierProvider). - It takes the value of a previously provided object (in this case,
CatalogModel, provided just above), and uses it to build the value ofCartModel(if you only want this functionality, simply useProxyProvider).
lib/models/*
This directory contains the model classes that are provided in main.dart. These classes
represent the app state.
lib/screens/*
This directory contains widgets used to construct the two screens of the app: the catalog and
the cart. These widgets have access to the current state of both the catalog and the cart
via Provider.of.
Questions/issues
If you have a general question about Provider, the best places to go are:
If you run into an issue with the sample itself, please file an issue in the main Flutter repo.