| // 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' show Directory; |
| |
| 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> _appDocumentsDirectory; |
| Future<Directory> _appLibraryDirectory; |
| Future<Directory> _downloadsDirectory; |
| |
| 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); |
| } |
| |
| void _requestAppDocumentsDirectory() { |
| setState(() { |
| _appDocumentsDirectory = getApplicationDocumentsDirectory(); |
| }); |
| } |
| |
| void _requestAppSupportDirectory() { |
| setState(() { |
| _appSupportDirectory = getApplicationSupportDirectory(); |
| }); |
| } |
| |
| void _requestAppLibraryDirectory() { |
| setState(() { |
| _appLibraryDirectory = getLibraryDirectory(); |
| }); |
| } |
| |
| void _requestDownloadsDirectory() { |
| setState(() { |
| _downloadsDirectory = getDownloadsDirectory(); |
| }); |
| } |
| |
| @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: ElevatedButton( |
| child: const Text('Get Temporary Directory'), |
| onPressed: _requestTempDirectory, |
| ), |
| ), |
| FutureBuilder<Directory>( |
| future: _tempDirectory, builder: _buildDirectory), |
| Padding( |
| padding: const EdgeInsets.all(16.0), |
| child: ElevatedButton( |
| child: const Text('Get Application Documents Directory'), |
| onPressed: _requestAppDocumentsDirectory, |
| ), |
| ), |
| FutureBuilder<Directory>( |
| future: _appDocumentsDirectory, builder: _buildDirectory), |
| Padding( |
| padding: const EdgeInsets.all(16.0), |
| child: ElevatedButton( |
| child: const Text('Get Application Support Directory'), |
| onPressed: _requestAppSupportDirectory, |
| ), |
| ), |
| FutureBuilder<Directory>( |
| future: _appSupportDirectory, builder: _buildDirectory), |
| Padding( |
| padding: const EdgeInsets.all(16.0), |
| child: ElevatedButton( |
| child: const Text('Get Application Library Directory'), |
| onPressed: _requestAppLibraryDirectory, |
| ), |
| ), |
| FutureBuilder<Directory>( |
| future: _appLibraryDirectory, builder: _buildDirectory), |
| Padding( |
| padding: const EdgeInsets.all(16.0), |
| child: ElevatedButton( |
| child: const Text('Get Downlads Directory'), |
| onPressed: _requestDownloadsDirectory, |
| ), |
| ), |
| FutureBuilder<Directory>( |
| future: _downloadsDirectory, builder: _buildDirectory), |
| ], |
| ), |
| ), |
| ); |
| } |
| } |