faro_torch 0.0.3

Faro Torch #

pub package

Flutter plugin to use the camera phone flash without using the camera.

⚠️ At the moment, it is only possible to use on Android. We are working on the implementation for iOS

Note: This plugin is still under development, and some APIs might not be available yet. Feedback welcome and Pull Requests are most welcome!

Install #

To use this plugin, add faro_torch as a dependency in your pubspec.yaml file.

Android #

Change the minimum Android sdk version to 23 (or higher) in your android/app/build.gradle file.

minSdkVersion 23

Add the following permissions on your AndroidManifest.xml:

<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.FLASHLIGHT" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-feature android:name="android.hardware.camera.flash" />

iOS #

Work in progress 🔨

Features: #

  • Check if device has flash
  • Turn on flash
  • Turn off flash

Example #

import 'package:device_info/device_info.dart';
import 'package:flutter/material.dart';
import 'dart:async';

import 'package:faro_torch/faro_torch.dart';

void main() => runApp(FaroTorchExmapleApp());

class FaroTorchExmapleApp extends StatefulWidget {
  _FaroTorchExmapleAppState createState() => _FaroTorchExmapleAppState();

class _FaroTorchExmapleAppState extends State<FaroTorchExmapleApp> {
  bool _hasFlash = false;

  void initState() {

  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Faro Torch Plugin example'),
        body: _buildBody(),

  Widget _buildBody() {
    return Center(
      child: Container(
        child: Column(
          mainAxisSize: MainAxisSize.max,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: <Widget>[
              padding: const EdgeInsets.all(8.0),
              child: Row(
                mainAxisAlignment: MainAxisAlignment.center,
                children: <Widget>[
                    padding: const EdgeInsets.all(8.0),
                    child: RaisedButton(
                      child: Text("ON"),
                      onPressed: () => _turnOn(),
                    padding: const EdgeInsets.all(8.0),
                    child: RaisedButton(
                      child: Text("OFF"),
                      onPressed: () => _turnOff(),
  Future<void> checkIfDeviceHasFlash() async {
    bool hasFlash = await FaroTorch.hasFlash();

    if (widgetWasRemove()) return;

    setState(() {
      _hasFlash = hasFlash;

  Future _turnOn() async {
    await FaroTorch.turnOn();

  Future _turnOff() async {
    await FaroTorch.turnOff();

  bool widgetWasRemove() => !mounted;

0.0.3 #

  • Update kotlin-gradle-plugin version to 1.3.50

0.0.2 #

  • Fix format warning using flutter format

0.0.1 #

  • Initial release


Faro Torch example #

View plugin Readme to get how use Faro Torch

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  faro_torch: ^0.0.3

2. Install it

You can install packages from the command line:

with Flutter:

$ flutter pub get

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:faro_torch/faro_torch.dart';
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Learn more about scoring.

We analyzed this package on Feb 25, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.7.1
  • pana: 0.13.5
  • Flutter: 1.12.13+hotfix.7

Health issues and suggestions

Document public APIs. (-1 points)

10 out of 10 API elements have no dartdoc comment.Providing good documentation for libraries, classes, functions, and other API elements improves code readability and helps developers find and use your API.

Maintenance suggestions

Package is pre-v0.1 release. (-10 points)

While nothing is inherently wrong with versions of 0.0.*, it might mean that the author is still experimenting with the general direction of the API.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.1.0 <3.0.0
flutter 0.0.0
Transitive dependencies
collection 1.14.11 1.14.12
meta 1.1.8
sky_engine 0.0.99
typed_data 1.1.6
vector_math 2.0.8
Dev dependencies