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// Copyright 2019 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// ignore_for_file: public_member_api_docs
import 'dart:async';
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:path_provider/path_provider.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Path Provider',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Path Provider'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
Future<Directory> _tempDirectory;
Future<Directory> _appSupportDirectory;
Future<Directory> _appLibraryDirectory;
Future<Directory> _appDocumentsDirectory;
Future<Directory> _externalDocumentsDirectory;
Future<List<Directory>> _externalStorageDirectories;
Future<List<Directory>> _externalCacheDirectories;
void _requestTempDirectory() {
setState(() {
_tempDirectory = getTemporaryDirectory();
});
}
Widget _buildDirectory(
BuildContext context, AsyncSnapshot<Directory> snapshot) {
Text text = const Text('');
if (snapshot.connectionState == ConnectionState.done) {
if (snapshot.hasError) {
text = Text('Error: ${snapshot.error}');
} else if (snapshot.hasData) {
text = Text('path: ${snapshot.data.path}');
} else {
text = const Text('path unavailable');
}
}
return Padding(padding: const EdgeInsets.all(16.0), child: text);
}
Widget _buildDirectories(
BuildContext context, AsyncSnapshot<List<Directory>> snapshot) {
Text text = const Text('');
if (snapshot.connectionState == ConnectionState.done) {
if (snapshot.hasError) {
text = Text('Error: ${snapshot.error}');
} else if (snapshot.hasData) {
final String combined =
snapshot.data.map((Directory d) => d.path).join(', ');
text = Text('paths: $combined');
} else {
text = const Text('path unavailable');
}
}
return Padding(padding: const EdgeInsets.all(16.0), child: text);
}
void _requestAppDocumentsDirectory() {
setState(() {
_appDocumentsDirectory = getApplicationDocumentsDirectory();
});
}
void _requestAppSupportDirectory() {
setState(() {
_appSupportDirectory = getApplicationSupportDirectory();
});
}
void _requestAppLibraryDirectory() {
setState(() {
_appLibraryDirectory = getLibraryDirectory();
});
}
void _requestExternalStorageDirectory() {
setState(() {
_externalDocumentsDirectory = getExternalStorageDirectory();
});
}
void _requestExternalStorageDirectories(StorageDirectory type) {
setState(() {
_externalStorageDirectories = getExternalStorageDirectories(type: type);
});
}
void _requestExternalCacheDirectories() {
setState(() {
_externalCacheDirectories = getExternalCacheDirectories();
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: ListView(
children: <Widget>[
Padding(
padding: const EdgeInsets.all(16.0),
child: RaisedButton(
child: const Text('Get Temporary Directory'),
onPressed: _requestTempDirectory,
),
),
FutureBuilder<Directory>(
future: _tempDirectory, builder: _buildDirectory),
Padding(
padding: const EdgeInsets.all(16.0),
child: RaisedButton(
child: const Text('Get Application Documents Directory'),
onPressed: _requestAppDocumentsDirectory,
),
),
FutureBuilder<Directory>(
future: _appDocumentsDirectory, builder: _buildDirectory),
Padding(
padding: const EdgeInsets.all(16.0),
child: RaisedButton(
child: const Text('Get Application Support Directory'),
onPressed: _requestAppSupportDirectory,
),
),
FutureBuilder<Directory>(
future: _appSupportDirectory, builder: _buildDirectory),
Padding(
padding: const EdgeInsets.all(16.0),
child: RaisedButton(
child: const Text('Get Application Library Directory'),
onPressed: _requestAppLibraryDirectory,
),
),
FutureBuilder<Directory>(
future: _appLibraryDirectory, builder: _buildDirectory),
Padding(
padding: const EdgeInsets.all(16.0),
child: RaisedButton(
child: Text(
'${Platform.isIOS ? "External directories are unavailable " "on iOS" : "Get External Storage Directory"}'),
onPressed:
Platform.isIOS ? null : _requestExternalStorageDirectory,
),
),
FutureBuilder<Directory>(
future: _externalDocumentsDirectory, builder: _buildDirectory),
Column(children: <Widget>[
Padding(
padding: const EdgeInsets.all(16.0),
child: RaisedButton(
child: Text(
'${Platform.isIOS ? "External directories are unavailable " "on iOS" : "Get External Storage Directories"}'),
onPressed: Platform.isIOS
? null
: () {
_requestExternalStorageDirectories(
StorageDirectory.music,
);
},
),
),
]),
FutureBuilder<List<Directory>>(
future: _externalStorageDirectories,
builder: _buildDirectories),
Column(children: <Widget>[
Padding(
padding: const EdgeInsets.all(16.0),
child: RaisedButton(
child: Text(
'${Platform.isIOS ? "External directories are unavailable " "on iOS" : "Get External Cache Directories"}'),
onPressed:
Platform.isIOS ? null : _requestExternalCacheDirectories,
),
),
]),
FutureBuilder<List<Directory>>(
future: _externalCacheDirectories, builder: _buildDirectories),
],
),
),
);
}
}
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