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

light

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

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. [...]

VM

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. [...]