Image Picker plugin for Flutter
A Flutter plugin for iOS and Android for picking images from the image library, and taking new pictures with the camera.
Note: This plugin is still under development, and some APIs might not be available yet. Feedback welcome and Pull Requests are most welcome!
Installation
First, add image_picker
as a dependency in your pubspec.yaml file.
iOS
Add the following keys to your Info.plist file, located in <project root>/ios/Runner/Info.plist
:
NSPhotoLibraryUsageDescription
- describe why your app needs permission for the photo library. This is called Privacy - Photo Library Usage Description in the visual editor.NSCameraUsageDescription
- describe why your app needs access to the camera. This is called Privacy - Camera Usage Description in the visual editor.NSMicrophoneUsageDescription
- describe why your app needs access to the microphone, if you intend to record videos. This is called Privacy - Microphone Usage Description in the visual editor.
Android
No configuration required - the plugin should work out of the box.
Example
import 'package:image_picker/image_picker.dart';
class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
File _image;
Future getImage() async {
var image = await ImagePicker.pickImage(source: ImageSource.camera);
setState(() {
_image = image;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Image Picker Example'),
),
body: Center(
child: _image == null
? Text('No image selected.')
: Image.file(_image),
),
floatingActionButton: FloatingActionButton(
onPressed: getImage,
tooltip: 'Pick Image',
child: Icon(Icons.add_a_photo),
),
);
}
}
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. [...]