# zone_local 0.2.0-nullsafety.0

A simple, type-safe package for declaring static variables (for configuration, etc.) that can have zone-scoped values.




## Installing
```
export PUB_HOSTED_URL=https://pub.mirror.p-hatan.ir
flutter pub add 'zone_local:0.2.0-nullsafety.0'
```
Published: 2021-01-02T20:55:21.995269Z
Expected archive SHA-256: 6887f39ae367d509e43d017d805a67a346e979d7e93b2ba81fa27a20a98ba4bf
Discontinued upstream.
Available in cache; verification: upstream_checksum
## Direct dependencies
- meta: ^1.3.0-nullsafety.6

## Package README (untrusted upstream documentation)
[![Pub Package](https://img.shields.io/pub/v/zone_local.svg)](https://pub.dartlang.org/packages/zone_local)
[![Github Actions CI](https://github.com/terrier989/zone_local/workflows/Dart%20CI/badge.svg)](https://github.com/terrier989/zone_local/actions?query=workflow%3A%22Dart+CI%22)

# Introduction
A simple, type-safe package for declaring static variables that may have zone-scoped values.
These are similar to _ThreadLocal_ values in programming languages such as Java.

See [explanation of zones at dartlang.org](https://www.dartlang.org/articles/libraries/zones).

# Getting Started
## 1.Add dependency
In `pubspec.yaml`:
```yaml
dependencies:
  zone_local: ^0.2.0-nullsafety.0
```

## 2.Usage
```dart
import 'package:zone_local/zone_local.dart';

final ZoneLocal<String> greeting = new ZoneLocal<String>(
  defaultValue: 'Hello!',
);

void main() {
  // This zone sees the default value.
  print(greeting.value); // Hello!

  // Fork a zone that will see a different value when the zoneLocal is accessed.
  final zone = greeting.forkZoneWithValue('Hi!');
  zone.run(() {
    print(greeting.value); // Hi!
  });
}
```
## Changelog
# 0.2.0-nullsafety.0
  * Null-safe version. Removed deprecated APIs.

# 0.1.2
  * Improved documentation
  * Fixed analyzer warnings