1.path_provider
用于查找文件系统上常用位置的Flutter插件。 支持Android、iOS、Linux、macOS和Windows。 并非所有平台都支持所有方法
example：
Directory tempDir = await getTemporaryDirectory();
String tempPath = tempDir.path;
Directory appDocDir = await getApplicationDocumentsDirectory();
String appDocPath = appDocDir.path;
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2.flutter_slidable
具有可撤销的定向滑动动作的可滑动列表项的颤振实现。
example
Widget build(BuildContext context) {
return MaterialApp(
title: 'Slidable Example',
home: Scaffold(
body: ListView(
children: [
Slidable(
// Specify a key if the Slidable is dismissible.
key: const ValueKey(0),
// The start action pane is the one at the left or the top side.
startActionPane: ActionPane(
// A motion is a widget used to control how the pane animates.
motion: const ScrollMotion(),
// A pane can dismiss the Slidable.
dismissible: DismissiblePane(onDismissed: () {}),
// All actions are defined in the children parameter.
children: [
// A SlidableAction can have an icon and/or a label.
SlidableAction(
onPressed: (BuildContext context){
print('Delete');
},
backgroundColor: Color(0xFFFE4A49),
foregroundColor: Colors.white,
icon: Icons.delete,
label: 'Delete',
),
SlidableAction(
onPressed: (BuildContext context){
print('Share');
},
backgroundColor: Color(0xFF21B7CA),
foregroundColor: Colors.white,
icon: Icons.share,
label: 'Share',
),
],
),
// The end action pane is the one at the right or the bottom side.
endActionPane: ActionPane(
motion: ScrollMotion(),
children: [
SlidableAction(
// An action can be bigger than the others.
flex: 2,
onPressed: (BuildContext context){
print('archive');
},
backgroundColor: Color(0xFF7BC043),
foregroundColor: Colors.white,
icon: Icons.archive,
label: 'Archive',
),
SlidableAction(
onPressed: (BuildContext context){
print('save');
},
backgroundColor: Color(0xFF0392CF),
foregroundColor: Colors.white,
icon: Icons.save,
label: 'Save',
),
],
),
// The child of the Slidable is what the user sees when the
// component is not dragged.
child: const ListTile(title: Text('Slide me')),
),
],
),
),
);
}
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3.sign_in_with_apple
Flutter bridge to Sign in with Apple. Supports login via an Apple ID, as well as retrieving credentials saved in the user's keychain.
example
class _MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Example app: Sign in with Apple'),
),
body: Container(
padding: const EdgeInsets.all(10),
child: Center(
child: SignInWithAppleButton(
onPressed: () async {
final credential = await SignInWithApple.getAppleIDCredential(
scopes: [
AppleIDAuthorizationScopes.email,
AppleIDAuthorizationScopes.fullName,
],
webAuthenticationOptions: WebAuthenticationOptions(
// TODO: Set the `clientId` and `redirectUri` arguments to the values you entered in the Apple Developer portal during the setup
clientId:
'de.lunaone.flutter.signinwithappleexample.service',
redirectUri:
// For web your redirect URI needs to be the host of the "current page",
// while for Android you will be using the API server that redirects back into your app via a deep link
kIsWeb
? Uri.parse('https://${window.location.host}/')
: Uri.parse(
'https://flutter-sign-in-with-apple-example.glitch.me/callbacks/sign_in_with_apple',
),
),
// TODO: Remove these if you have no need for them
nonce: 'example-nonce',
state: 'example-state',
);
// ignore: avoid_print
print(credential);
// This is the endpoint that will convert an authorization code obtained
// via Sign in with Apple into a session in your system
final signInWithAppleEndpoint = Uri(
scheme: 'https',
host: 'flutter-sign-in-with-apple-example.glitch.me',
path: '/sign_in_with_apple',
queryParameters: <String, String>{
'code': credential.authorizationCode,
if (credential.givenName != null)
'firstName': credential.givenName!,
if (credential.familyName != null)
'lastName': credential.familyName!,
'useBundleId':
!kIsWeb && (Platform.isIOS || Platform.isMacOS)
? 'true'
: 'false',
if (credential.state != null) 'state': credential.state!,
},
);
final session = await http.Client().post(
signInWithAppleEndpoint,
);
// If we got this far, a session based on the Apple ID credential has been created in your system,
// and you can now set this as the app's session
// ignore: avoid_print
print(session);
},
),
),
),
),
);
}
}
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4.shared_preferences
为简单数据包装特定平台的持久存储(iOS和macOS上的NSUserDefaults, Android上的SharedPreferences，等等)。数据可以异步持久化到磁盘，并且不能保证写入在返回后会持久化到磁盘，所以这个插件不能用于存储关键数据。 支持的数据类型有int、double、bool、String和List<String>。
