tf_album_saver 0.0.2 tf_album_saver: ^0.0.2 copied to clipboard
A new Flutter project.
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:path_provider/path_provider.dart';
import 'package:pdf_viewer_plugin/pdf_viewer_plugin.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:tf_album_saver/tf_album_saver.dart';
import 'package:tf_toast/Toast.dart';
import 'package:video_player/video_player.dart';
import 'VideoPlayerHelper.dart';
import 'permission.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Title',
home: HomePage(),
);
}
}
class HomePage extends StatefulWidget {
@override
_HomePageState createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
var type = FileType.image;
var map = {
FileType.image: 'images/jpg.jpg', // 'images/jpeg.jpeg'、'images/png.png'
FileType.gif: 'images/gif.gif',
FileType.video: 'images/video.MOV',
FileType.pdf: 'images/pdf.pdf',
};
//
String pdfPath;
VideoPlayerController videoController;
@override
void initState() {
super.initState();
saveToFile();
}
@override
Widget build(BuildContext context) {
var width = MediaQuery.of(context).size.width;
return MaterialApp(
home: Scaffold(
appBar: AppBar(title: Text('tf_album_saver')),
body: Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Container(
height: 100,
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
for (var t in map.keys)
GestureDetector(
child: Container(
alignment: Alignment.center,
width: width / map.keys.length * 0.8,
height: 50,
color: type == t ? Colors.red : Colors.transparent,
child:
Text('${t.toString().replaceAll('FileType.', '')}'),
),
onTap: () => setState(() => type = t),
)
],
),
),
Container(
width: width * 0.8,
height: width * 0.8,
child: type == FileType.video
? AssetPlayerLifeCycle('images/video.MOV',
(context, controller) {
videoController = controller;
return AspectRatioVideo(controller);
})
: type == FileType.pdf && pdfPath != null
? PdfViewer(filePath: pdfPath)
: Image.asset(
map[type],
width: width * 0.8,
height: width * 0.8,
),
),
FlatButton(
color: Colors.blue,
child: Text('Save To Album'),
onPressed: () async {
var permissionGroup = Platform.isAndroid
? PermissionGroup.storage
: PermissionGroup.photos;
var b = await checkAndRequest(permissionGroup);
if (!b) {
Toast.show(context, title: '请开启相册访问权限,以存储照片或Gif到相册');
return;
}
print('type = ${type.index}');
var filePath = await getFile(map[type]);
var errorMsg =
await TfAlbumSaver.saveToAlbum(type, filePath.path);
var showText =
'Save To Album ${errorMsg == null ? 'success' : errorMsg}';
print(showText);
Toast.show(context, title: showText);
},
),
],
),
floatingActionButton: type == FileType.video && videoController != null
? FloatingActionButton(
onPressed: () {
setState(() {
videoController.value.isPlaying
? videoController.pause()
: videoController.play();
});
},
child: Icon(
videoController.value.isPlaying
? Icons.pause
: Icons.play_arrow,
),
)
: null,
),
);
}
saveToFile() async {
map.values.forEach((name) async {
var file = await getFile(name);
await file.createSync(recursive: true);
final byteData = await rootBundle.load(name);
final bytes = byteData.buffer.asUint8List();
await file.writeAsBytesSync(bytes);
print(file.path);
if (name.contains('pdf'))
setState(() {
pdfPath = file.path;
});
});
}
Future<File> getFile(String name) async {
var documentsDir = await getApplicationDocumentsDirectory();
return File("${documentsDir.path}/$name");
}
}