light
A light sensor plugin for Flutter, reads the intensity of light in lux, and reports this number back. The API for getting the current light exposure is only available on Android devices, and the plugin will therefore not work for iOS devices.
Install
Add light as a dependency in pubspec.yaml.
For help on adding as a dependency, view the documentation.
Usage
Al incoming data points are streamed with a StreamSubscription which is set up by calling the listen() method on a Light object.
Given a method _onData(int lux) the subscription can be set up as follows:
Light _light = new Light();
_light.listen(_onData);
The stream can also be cancelled again by calling the cancel() method:
_light.cancel();
Libraries
Dart
- dart:ui
- Built-in types and core primitives for a Flutter application. [...]
- dart:async
- Support for asynchronous programming, with classes such as Future and Stream. [...]
- dart:collection
- Classes and utilities that supplement the collection support in dart:core. [...]
- dart:convert
- Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
- dart:core
- Built-in types, collections, and other core functionality for every Dart program. [...]
- dart:developer
- Interact with developer tools such as the debugger and inspector. [...]
- dart:math
- Mathematical constants and functions, plus a random number generator. [...]
- dart:typed_data
- Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]
- dart:io
- File, socket, HTTP, and other I/O support for non-web applications. [...]
- dart:isolate
- Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]