flutter_export_video_frames 0.0.3 flutter_export_video_frames: ^0.0.3 copied to clipboard
A Flutter plugin for iOS and Android for exporting picture from video file.
import 'dart:math';
import 'package:flutter/material.dart';
import 'package:flutter_export_video_frames/flutter_export_video_frames.dart';
import 'package:image_picker/image_picker.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: "Plugin Example App",
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(images: <Image>[]),
);
}
}
class ImageItem extends StatelessWidget {
ImageItem({required this.image});
final Image image;
@override
Widget build(BuildContext context) {
return Container(child: image);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({required this.images});
final List<Image> images;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
var _isClean = false;
Future _getImages() async {
var file =
await ImagePicker.platform.pickVideo(source: ImageSource.gallery);
var images = await ExportVideoFrame.exportImage(file!.path, 10, 0);
var result = images.map((file) => Image.file(file)).toList();
setState(() {
widget.images.addAll(result);
_isClean = true;
});
}
Future _getGifImages() async {
var file =
await ImagePicker.platform.pickImage(source: ImageSource.gallery);
var images = await ExportVideoFrame.exportGifImage(file!.path, 0);
var result = images.map((file) => Image.file(file)).toList();
setState(() {
widget.images.addAll(result);
_isClean = true;
});
}
Future _getImagesByDuration() async {
var file =
await ImagePicker.platform.pickVideo(source: ImageSource.gallery);
var duration = Duration(seconds: 1);
var image = await ExportVideoFrame.exportImageBySeconds(
file!.path, duration, pi / 2);
setState(() {
widget.images.add(Image.file(image));
_isClean = true;
});
await ExportVideoFrame.saveImage(image, "Video Export Demo",
waterMark: "images/water_mark.png",
alignment: Alignment.bottomLeft,
scale: 2.0);
}
Future _cleanCache() async {
var result = await ExportVideoFrame.cleanImageCache();
print(result);
setState(() {
widget.images.clear();
_isClean = false;
});
}
Future _handleClickFirst() async {
if (_isClean) {
await _cleanCache();
} else {
await _getImages();
}
}
Future _handleClickSecond() async {
if (_isClean) {
await _cleanCache();
} else {
await _getImagesByDuration();
}
}
Future _handleClickThird() async {
if (_isClean) {
await _cleanCache();
} else {
await _getGifImages();
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Export Image"),
),
body: Container(
padding: EdgeInsets.zero,
child: Column(
children: <Widget>[
Expanded(
flex: 1,
child: GridView.extent(
maxCrossAxisExtent: 400,
childAspectRatio: 1.0,
padding: const EdgeInsets.all(4),
mainAxisSpacing: 4,
crossAxisSpacing: 4,
children: widget.images.length > 0
? widget.images
.map((image) => ImageItem(image: image))
.toList()
: [Container()]),
),
Expanded(
flex: 0,
child: Center(
child: MaterialButton(
padding: EdgeInsets.fromLTRB(10, 10, 10, 10),
height: 40,
minWidth: 100,
onPressed: () {
_handleClickFirst();
},
color: Colors.orange,
child: Text(_isClean ? "Clean" : "Export image list"),
),
),
),
Expanded(
flex: 0,
child: Center(
child: MaterialButton(
padding: EdgeInsets.fromLTRB(10, 10, 10, 10),
height: 40,
minWidth: 150,
onPressed: () {
_handleClickSecond();
},
color: Colors.orange,
child: Text(_isClean ? "Clean" : "Export one image and save"),
),
),
),
Expanded(
flex: 0,
child: Center(
child: MaterialButton(
padding: EdgeInsets.fromLTRB(10, 10, 10, 10),
height: 40,
minWidth: 150,
onPressed: () {
_handleClickThird();
},
color: Colors.orange,
child: Text(_isClean ? "Clean" : "Export gif image"),
),
),
),
],
),
),
);
}
}