pit_multiple_image_picker 0.0.5 pit_multiple_image_picker: ^0.0.5 copied to clipboard
PIT Multiple Image Picker
import 'dart:async';
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:pit_multiple_image_picker/pit_multiple_image_picker.dart';
import 'package:video_player/video_player.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return new MaterialApp(
title: 'Image Picker Demo',
home: new MyHomePage(title: 'Image Picker Example'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => new _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
Future<List<File>> _imageFile;
bool isVideo = false;
VideoPlayerController _controller;
VoidCallback listener;
void _pickImage(ImageSource source) {
setState(() {
isVideo = false;
_imageFile = PitMultipleImagePicker.pickImage(source: source);
});
}
void _pickImages(int maxImages) {
setState(() {
isVideo = false;
_imageFile = PitMultipleImagePicker.pickImages(maxImages: maxImages);
});
}
void _pickVideo(ImageSource source) {
setState(() {
isVideo = true;
if (_controller != null) {
_controller.setVolume(0.0);
_controller.removeListener(listener);
}
PitMultipleImagePicker.pickVideo(source: source).then((File file) {
if (file != null && mounted) {
setState(() {
_controller = VideoPlayerController.file(file)
..addListener(listener)
..setVolume(1.0)
..initialize()
..setLooping(true)
..play();
});
}
});
});
}
@override
void deactivate() {
if (_controller != null) {
_controller.setVolume(0.0);
_controller.removeListener(listener);
}
super.deactivate();
}
@override
void dispose() {
if (_controller != null) {
_controller.dispose();
}
super.dispose();
}
@override
void initState() {
super.initState();
listener = () {
setState(() {});
};
}
Widget _previewVideo(VideoPlayerController controller) {
if (controller == null) {
return const Text(
'You have not yet picked a video',
textAlign: TextAlign.center,
);
} else if (controller.value.initialized) {
return Padding(
padding: const EdgeInsets.all(10.0),
child: AspectRatioVideo(controller),
);
} else {
return const Text(
'Error Loading Video',
textAlign: TextAlign.center,
);
}
}
Widget _previewImage() {
return FutureBuilder<List<File>>(
future: _imageFile,
builder: (BuildContext context, AsyncSnapshot<List<File>> snapshot) {
if (snapshot.connectionState == ConnectionState.done &&
snapshot.data != null) {
List<File> files = snapshot.data;
return (files.length == 1)
? //for pickImage case (1 image)
files[0] == null ? Container() : new Image.file(files[0])
: ListView(
children: files.map((file) {
if (file != null) {
return Image.file(file);
}
}).toList());
} else if (snapshot.error != null) {
return const Text(
'Error picking image.',
textAlign: TextAlign.center,
);
} else {
return const Text(
'You have not yet picked an image.',
textAlign: TextAlign.center,
);
}
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: isVideo ? _previewVideo(_controller) : _previewImage(),
),
floatingActionButton: Column(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
FloatingActionButton(
onPressed: () {
_pickImage(ImageSource.gallery);
},
heroTag: 'Pick Image from gallery',
child: const Icon(Icons.photo),
),
Padding(
padding: const EdgeInsets.only(top: 16.0),
child: FloatingActionButton(
onPressed: () {
_pickImages(5);
},
heroTag: 'Take a Photo',
child: const Icon(Icons.photo_library),
),
),
Padding(
padding: const EdgeInsets.only(top: 16.0),
child: FloatingActionButton(
onPressed: () {
_pickImage(ImageSource.camera);
},
heroTag: 'Take a Photos',
child: const Icon(Icons.camera_alt),
),
),
Padding(
padding: const EdgeInsets.only(top: 16.0),
child: FloatingActionButton(
backgroundColor: Colors.red,
onPressed: () {
_pickVideo(ImageSource.gallery);
},
heroTag: 'Pick Video from gallery',
child: const Icon(Icons.video_library),
),
),
Padding(
padding: const EdgeInsets.only(top: 16.0),
child: FloatingActionButton(
backgroundColor: Colors.red,
onPressed: () {
_pickVideo(ImageSource.camera);
},
heroTag: 'Take a Video',
child: const Icon(Icons.videocam),
),
),
],
),
);
}
}
class AspectRatioVideo extends StatefulWidget {
final VideoPlayerController controller;
AspectRatioVideo(this.controller);
@override
AspectRatioVideoState createState() => new AspectRatioVideoState();
}
class AspectRatioVideoState extends State<AspectRatioVideo> {
VideoPlayerController get controller => widget.controller;
bool initialized = false;
VoidCallback listener;
@override
void initState() {
super.initState();
listener = () {
if (!mounted) {
return;
}
if (initialized != controller.value.initialized) {
initialized = controller.value.initialized;
setState(() {});
}
};
controller.addListener(listener);
}
@override
Widget build(BuildContext context) {
if (initialized) {
final Size size = controller.value.size;
return new Center(
child: new AspectRatio(
aspectRatio: size.width / size.height,
child: new VideoPlayer(controller),
),
);
} else {
return new Container();
}
}
}