| // 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. |
| |
| 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), |
| ], |
| ), |
| ), |
| ); |
| } |
| } |