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| Future<Directory?>? _tempDirectory;
Future<Directory?>? _appSupportDirectory;
Future<Directory?>? _appLibraryDirectory;
Future<Directory?>? _appDocumentsDirectory;
Future<Directory?>? _externalDocumentsDirectory;
Future<List<Directory>?>? _externalStorageDirectories;
Future<List<Directory>?>? _externalCacheDirectories;
Future<Directory?>? _downloadDirectory;
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();
});
}
void _requestDownloadDirectory() {
setState(() {
_downloadDirectory = getDownloadsDirectory();
});
}
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: 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: ElevatedButton(
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: ElevatedButton(
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),
Padding(padding: const EdgeInsets.all(16.0), child: ElevatedButton(child: const Text('Get Download Directory'), onPressed: _requestDownloadDirectory,),),
FutureBuilder<Directory?>(future: _downloadDirectory, builder: _buildDirectory),
],
),
)
|
