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Upgrade provider shopper (#521)

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pull/525/head
Filip Hracek 4 years ago committed by GitHub
parent 8767dadff0
commit c617da7e1e
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6 changed files with 99 additions and 48 deletions
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2
MAINTENANCE.md
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@ -17,6 +17,6 @@ match any new language/SDK features, etc.).
| platform_design | johnpryan | 10/7/19 |
| platform_view_swift | redbrogdon | 10/7/19 |
| provider_counter | filiph | 8/13/20 |
| provider_shopper | redbrogdon | 11/21/19 |
| provider_shopper | filiph | 8/13/20 |
| testing_app | | |
| veggieseasons | filiph | 8/13/20 |

14
provider_shopper/ios/Runner.xcodeproj/project.pbxproj
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@ -9,11 +9,7 @@
/* Begin PBXBuildFile section */
1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
3B80C3941E831B6300D905FE /* App.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 3B80C3931E831B6300D905FE /* App.framework */; };
3B80C3951E831B6300D905FE /* App.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 3B80C3931E831B6300D905FE /* App.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74858FAE1ED2DC5600515810 /* AppDelegate.swift */; };
9705A1C61CF904A100538489 /* Flutter.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 9740EEBA1CF902C7004384FC /* Flutter.framework */; };
9705A1C71CF904A300538489 /* Flutter.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 9740EEBA1CF902C7004384FC /* Flutter.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
@ -26,8 +22,6 @@
dstPath = "";
dstSubfolderSpec = 10;
files = (
3B80C3951E831B6300D905FE /* App.framework in Embed Frameworks */,
9705A1C71CF904A300538489 /* Flutter.framework in Embed Frameworks */,
);
name = "Embed Frameworks";
runOnlyForDeploymentPostprocessing = 0;
@ -38,13 +32,11 @@
1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
3B80C3931E831B6300D905FE /* App.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = App.framework; path = Flutter/App.framework; sourceTree = "<group>"; };
74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Runner-Bridging-Header.h"; sourceTree = "<group>"; };
74858FAE1ED2DC5600515810 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
9740EEBA1CF902C7004384FC /* Flutter.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Flutter.framework; path = Flutter/Flutter.framework; sourceTree = "<group>"; };
97C146EE1CF9000F007C117D /* Runner.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Runner.app; sourceTree = BUILT_PRODUCTS_DIR; };
97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
@ -57,8 +49,6 @@
isa = PBXFrameworksBuildPhase;
buildActionMask = 2147483647;
files = (
9705A1C61CF904A100538489 /* Flutter.framework in Frameworks */,
3B80C3941E831B6300D905FE /* App.framework in Frameworks */,
);
runOnlyForDeploymentPostprocessing = 0;
};
@ -68,9 +58,7 @@
9740EEB11CF90186004384FC /* Flutter */ = {
isa = PBXGroup;
children = (
3B80C3931E831B6300D905FE /* App.framework */,
3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
9740EEBA1CF902C7004384FC /* Flutter.framework */,
9740EEB21CF90195004384FC /* Debug.xcconfig */,
7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
9740EEB31CF90195004384FC /* Generated.xcconfig */,
@ -201,7 +189,7 @@
);
runOnlyForDeploymentPostprocessing = 0;
shellPath = /bin/sh;
shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" thin";
shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" embed_and_thin";
};
9740EEB61CF901F6004384FC /* Run Script */ = {
isa = PBXShellScriptBuildPhase;

11
provider_shopper/lib/screens/cart.dart
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@ -37,7 +37,10 @@ class _CartList extends StatelessWidget {
@override
Widget build(BuildContext context) {
var itemNameStyle = Theme.of(context).textTheme.headline6;
var cart = Provider.of<CartModel>(context);
// This gets the current state of CartModel and also tells Flutter
// to rebuild this widget when CartModel notifies listeners (in other words,
// when it changes).
var cart = context.watch<CartModel>();
return ListView.builder(
itemCount: cart.items.length,
@ -64,6 +67,12 @@ class _CartTotal extends StatelessWidget {
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
// Another way to listen to a model's change is to include
// the Consumer widget. This widget will automatically listen
// to CartModel and rerun its builder on every change.
//
// The important thing is that it will not rebuild
// the rest of the widgets in this build method.
Consumer<CartModel>(
builder: (context, cart, child) =>
Text('\$${cart.totalPrice}', style: hugeStyle)),

33
provider_shopper/lib/screens/catalog.dart
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@ -32,14 +32,30 @@ class _AddButton extends StatelessWidget {
@override
Widget build(BuildContext context) {
var cart = Provider.of<CartModel>(context);
// The context.select() method will let you listen to changes to
// a *part* of a model. You define a function that "selects" (i.e. returns)
// the part you're interested in, and the provider package will not rebuild
// this widget unless that particular part of the model changes.
//
// This can lead to significant performance improvements.
var isInCart = context.select<CartModel, bool>(
// Here, we are only interested whether [item] is inside the cart.
(cart) => cart.items.contains(item),
);
return FlatButton(
onPressed: cart.items.contains(item) ? null : () => cart.add(item),
onPressed: isInCart
? null
: () {
// If the item is not in cart, we let the user add it.
// We are using context.read() here because the callback
// is executed whenever the user taps the the button. In other
// words, it is executed outside the build method.
var cart = context.read<CartModel>();
cart.add(item);
},
splashColor: Theme.of(context).primaryColor,
child: cart.items.contains(item)
? Icon(Icons.check, semanticLabel: 'ADDED')
: Text('ADD'),
child: isInCart ? Icon(Icons.check, semanticLabel: 'ADDED') : Text('ADD'),
);
}
}
@ -67,8 +83,11 @@ class _MyListItem extends StatelessWidget {
@override
Widget build(BuildContext context) {
var catalog = Provider.of<CatalogModel>(context);
var item = catalog.getByPosition(index);
var item = context.select<CatalogModel, Item>(
// Here, we are only interested in the item at [index]. We don't care
// about any other change.
(catalog) => catalog.getByPosition(index),
);
var textTheme = Theme.of(context).textTheme.headline6;
return Padding(

85
provider_shopper/pubspec.lock
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@ -1,13 +1,27 @@
# Generated by pub
# See https://dart.dev/tools/pub/glossary#lockfile
packages:
archive:
dependency: transitive
description:
name: archive
url: "https://pub.dartlang.org"
source: hosted
version: "2.0.13"
args:
dependency: transitive
description:
name: args
url: "https://pub.dartlang.org"
source: hosted
version: "1.6.0"
async:
dependency: transitive
description:
name: async
url: "https://pub.dartlang.org"
source: hosted
version: "2.4.2"
version: "2.4.1"
boolean_selector:
dependency: transitive
description:
@ -15,13 +29,6 @@ packages:
url: "https://pub.dartlang.org"
source: hosted
version: "2.0.0"
characters:
dependency: transitive
description:
name: characters
url: "https://pub.dartlang.org"
source: hosted
version: "1.0.0"
charcode:
dependency: transitive
description:
@ -29,27 +36,27 @@ packages:
url: "https://pub.dartlang.org"
source: hosted
version: "1.1.3"
clock:
collection:
dependency: transitive
description:
name: clock
name: collection
url: "https://pub.dartlang.org"
source: hosted
version: "1.0.1"
collection:
version: "1.14.12"
convert:
dependency: transitive
description:
name: collection
name: convert
url: "https://pub.dartlang.org"
source: hosted
version: "1.14.13"
fake_async:
version: "2.1.1"
crypto:
dependency: transitive
description:
name: fake_async
name: crypto
url: "https://pub.dartlang.org"
source: hosted
version: "1.1.0"
version: "2.1.4"
flutter:
dependency: "direct main"
description: flutter
@ -60,13 +67,20 @@ packages:
description: flutter
source: sdk
version: "0.0.0"
image:
dependency: transitive
description:
name: image
url: "https://pub.dartlang.org"
source: hosted
version: "2.1.12"
matcher:
dependency: transitive
description:
name: matcher
url: "https://pub.dartlang.org"
source: hosted
version: "0.12.8"
version: "0.12.6"
meta:
dependency: transitive
description:
@ -87,7 +101,7 @@ packages:
name: path
url: "https://pub.dartlang.org"
source: hosted
version: "1.7.0"
version: "1.6.4"
pedantic:
dependency: "direct dev"
description:
@ -95,13 +109,27 @@ packages:
url: "https://pub.dartlang.org"
source: hosted
version: "1.9.0"
petitparser:
dependency: transitive
description:
name: petitparser
url: "https://pub.dartlang.org"
source: hosted
version: "2.4.0"
provider:
dependency: "direct main"
description:
name: provider
url: "https://pub.dartlang.org"
source: hosted
version: "4.1.0"
version: "4.3.2"
quiver:
dependency: transitive
description:
name: quiver
url: "https://pub.dartlang.org"
source: hosted
version: "2.1.3"
sky_engine:
dependency: transitive
description: flutter
@ -120,7 +148,7 @@ packages:
name: stack_trace
url: "https://pub.dartlang.org"
source: hosted
version: "1.9.5"
version: "1.9.3"
stream_channel:
dependency: transitive
description:
@ -148,14 +176,14 @@ packages:
name: test_api
url: "https://pub.dartlang.org"
source: hosted
version: "0.2.17"
version: "0.2.15"
typed_data:
dependency: transitive
description:
name: typed_data
url: "https://pub.dartlang.org"
source: hosted
version: "1.2.0"
version: "1.1.6"
vector_math:
dependency: transitive
description:
@ -163,6 +191,13 @@ packages:
url: "https://pub.dartlang.org"
source: hosted
version: "2.0.8"
xml:
dependency: transitive
description:
name: xml
url: "https://pub.dartlang.org"
source: hosted
version: "3.6.1"
sdks:
dart: ">=2.9.0-14.0.dev <3.0.0"
flutter: ">=1.17.0"
dart: ">=2.7.0 <3.0.0"
flutter: ">=1.16.0"

2
provider_shopper/pubspec.yaml
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@ -11,7 +11,7 @@ dependencies:
sdk: flutter
# Import the provider package.
provider: ^4.0.2
provider: ^4.3.2
dev_dependencies:
flutter_test:

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