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flutter_file_picker
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Updates example app to null safety

This commit is contained in:
Miguel Ruivo 2021-04-01 13:52:44 +01:00
parent 911ba7be18
commit 74289af412
3 changed files with 23 additions and 18 deletions
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3
CHANGELOG.md
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@ -5,6 +5,9 @@
#### Web #### Web
- Add event when canceling the picker. (Thank you @letranloc). - Add event when canceling the picker. (Thank you @letranloc).
#### Other
- Updates example app to null safety.
## 3.0.0 ## 3.0.0
Adds null safety support ([#510](https://github.com/miguelpruivo/flutter_file_picker/issues/510)). Adds null safety support ([#510](https://github.com/miguelpruivo/flutter_file_picker/issues/510)).
## 2.1.7 ## 2.1.7

36
example/lib/src/file_picker_demo.dart
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@ -9,10 +9,10 @@ class FilePickerDemo extends StatefulWidget {
class _FilePickerDemoState extends State<FilePickerDemo> { class _FilePickerDemoState extends State<FilePickerDemo> {
final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>(); final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
String _fileName; String? _fileName;
List<PlatformFile> _paths; List<PlatformFile>? _paths;
String _directoryPath; String? _directoryPath;
String _extension; String? _extension;
bool _loadingPath = false; bool _loadingPath = false;
bool _multiPick = false; bool _multiPick = false;
FileType _pickingType = FileType.any; FileType _pickingType = FileType.any;
@ -32,7 +32,7 @@ class _FilePickerDemoState extends State<FilePickerDemo> {
type: _pickingType, type: _pickingType,
allowMultiple: _multiPick, allowMultiple: _multiPick,
allowedExtensions: (_extension?.isNotEmpty ?? false) allowedExtensions: (_extension?.isNotEmpty ?? false)
? _extension?.replaceAll(' ', '')?.split(',') ? _extension?.replaceAll(' ', '').split(',')
: null, : null,
)) ))
?.files; ?.files;
@ -44,7 +44,9 @@ class _FilePickerDemoState extends State<FilePickerDemo> {
if (!mounted) return; if (!mounted) return;
setState(() { setState(() {
_loadingPath = false; _loadingPath = false;
_fileName = _paths != null ? _paths.map((e) => e.name).toString() : '...'; print(_paths!.first.extension);
_fileName =
_paths != null ? _paths!.map((e) => e.name).toString() : '...';
}); });
} }
@ -52,7 +54,7 @@ class _FilePickerDemoState extends State<FilePickerDemo> {
FilePicker.platform.clearTemporaryFiles().then((result) { FilePicker.platform.clearTemporaryFiles().then((result) {
ScaffoldMessenger.of(context).showSnackBar( ScaffoldMessenger.of(context).showSnackBar(
SnackBar( SnackBar(
backgroundColor: result ? Colors.green : Colors.red, backgroundColor: result! ? Colors.green : Colors.red,
content: Text((result content: Text((result
? 'Temporary files removed with success.' ? 'Temporary files removed with success.'
: 'Failed to clean temporary files')), : 'Failed to clean temporary files')),
@ -84,10 +86,10 @@ class _FilePickerDemoState extends State<FilePickerDemo> {
children: <Widget>[ children: <Widget>[
Padding( Padding(
padding: const EdgeInsets.only(top: 20.0), padding: const EdgeInsets.only(top: 20.0),
child: DropdownButton( child: DropdownButton<FileType>(
hint: const Text('LOAD PATH FROM'), hint: const Text('LOAD PATH FROM'),
value: _pickingType, value: _pickingType,
items: <DropdownMenuItem>[ items: <DropdownMenuItem<FileType>>[
DropdownMenuItem( DropdownMenuItem(
child: const Text('FROM AUDIO'), child: const Text('FROM AUDIO'),
value: FileType.audio, value: FileType.audio,
@ -114,7 +116,7 @@ class _FilePickerDemoState extends State<FilePickerDemo> {
), ),
], ],
onChanged: (value) => setState(() { onChanged: (value) => setState(() {
_pickingType = value; _pickingType = value!;
if (_pickingType != FileType.custom) { if (_pickingType != FileType.custom) {
_controller.text = _extension = ''; _controller.text = _extension = '';
} }
@ -172,7 +174,7 @@ class _FilePickerDemoState extends State<FilePickerDemo> {
: _directoryPath != null : _directoryPath != null
? ListTile( ? ListTile(
title: const Text('Directory path'), title: const Text('Directory path'),
subtitle: Text(_directoryPath), subtitle: Text(_directoryPath!),
) )
: _paths != null : _paths != null
? Container( ? Container(
@ -182,20 +184,20 @@ class _FilePickerDemoState extends State<FilePickerDemo> {
child: Scrollbar( child: Scrollbar(
child: ListView.separated( child: ListView.separated(
itemCount: itemCount:
_paths != null && _paths.isNotEmpty _paths != null && _paths!.isNotEmpty
? _paths.length ? _paths!.length
: 1, : 1,
itemBuilder: itemBuilder:
(BuildContext context, int index) { (BuildContext context, int index) {
final bool isMultiPath = final bool isMultiPath =
_paths != null && _paths.isNotEmpty; _paths != null && _paths!.isNotEmpty;
final String name = 'File $index: ' + final String name = 'File $index: ' +
(isMultiPath (isMultiPath
? _paths ? _paths!
.map((e) => e.name) .map((e) => e.name)
.toList()[index] .toList()[index]
: _fileName ?? '...'); : _fileName ?? '...')!;
final path = _paths final path = _paths!
.map((e) => e.path) .map((e) => e.path)
.toList()[index] .toList()[index]
.toString(); .toString();

2
example/pubspec.yaml
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@ -3,7 +3,7 @@ description: An example of how to use the file_picker plugin.
version: 1.0.0+1 version: 1.0.0+1
environment: environment:
sdk: '>=2.10.0 <3.0.0' sdk: ">=2.12.0 <3.0.0"
dependencies: dependencies:
flutter: flutter: