flutter_file_picker File picker plugin for Flutter, compatible @codeKK Android开源站

flutter_file_picker

Project Url: miguelpruivo/flutter_file_picker

Introduction: File picker plugin for Flutter, compatible with both iOS & Android and desktop (go-flutter).

Tags:

fluter_file_picker

A package that allows you to use the native file explorer to pick single or multiple files, with extensions filtering support.

Currently supported features

Uses OS default native pickers
Supports multiple platforms (Mobile, Web, Desktop)
Supports WebAssembly (Wasm) compilation
Pick files using custom format filtering — you can provide a list of file extensions (pdf, svg, zip, etc.)
Pick files from cloud files (GDrive, Dropbox, iCloud)
Single or multiple file picks
Supports retrieving as XFile (cross_file) for easy manipulation with other libraries
Different default type filtering (media, image, video, audio or any)
Picking directories
Picking both files and directories simultaneously
Load file data immediately into memory (Uint8List) if needed;
Open a save-file / save-as dialog (a dialog that lets the user specify the drive, directory, and name of a file to save)

If you have any feature that you want to see in this package, please feel free to issue a suggestion. 🎉

Compatibility Chart

API	Android	iOS	Linux	macOS	Windows	Web
`clearTemporaryFiles()`	:white_check_mark:	:white_check_mark:	:x:	:x:	:x:	:x:
`getDirectoryPath()`	:white_check_mark:	:white_check_mark:	:white_check_mark:	:white_check_mark:	:white_check_mark:	:x:
`pickFileAndDirectoryPaths()`	:x:	:x:	:x:	:white_check_mark:	:x:	:x:
`pickFiles()`	:white_check_mark:	:white_check_mark:	:white_check_mark:	:white_check_mark:	:white_check_mark:	:white_check_mark:
`saveFile()`	:white_check_mark:	:white_check_mark:	:white_check_mark:	:white_check_mark:	:white_check_mark:	:white_check_mark:

See the API section of the File Picker Wiki or the official API reference on pub.dev for further details.

Darwin implementation notes

The iOS and macOS native implementations now live under the shared Darwin source tree. The iOS implementation requires iOS 14.0 or newer because it uses PHPickerViewController and PHPickerResult.

The old iOS compile-time flags (PICKER_MEDIA, PICKER_AUDIO, PICKER_DOCUMENT) were part of the legacy Objective-C implementation and are no longer used in the Darwin source path.

Documentation

See the File Picker Wiki for every detail on about how to install, setup and use it.

File Picker Wiki

Usage

Quick simple usage example:

Single file

FilePickerResult? result = await FilePicker.pickFiles();

if (result != null) {
  File file = File(result.files.single.path!);
} else {
  // User canceled the picker
}

Multiple files

FilePickerResult? result = await FilePicker.pickFiles(allowMultiple: true);

if (result != null) {
  List<File> files = result.paths.map((path) => File(path!)).toList();
} else {
  // User canceled the picker
}

Multiple files with extension filter

FilePickerResult? result = await FilePicker.pickFiles(
  allowMultiple: true,
  type: FileType.custom,
  allowedExtensions: ['jpg', 'pdf', 'doc'],
);

Pick a directory

String? selectedDirectory = await FilePicker.getDirectoryPath();

if (selectedDirectory == null) {
  // User canceled the picker
}

Save-file / save-as dialog

String? outputFile = await FilePicker.saveFile(
  dialogTitle: 'Please select an output file:',
  fileName: 'output-file.pdf',
);

if (outputFile == null) {
  // User canceled the picker
}

Load result and file details

FilePickerResult? result = await FilePicker.pickFiles();

if (result != null) {
  PlatformFile file = result.files.first;

  print(file.name);
  print(file.bytes);
  print(file.size);
  print(file.extension);
  print(file.path);
} else {
  // User canceled the picker
}

Retrieve all files as XFiles or individually

FilePickerResult? result = await FilePicker.pickFiles();

if (result != null) {
  // All files
  List<XFile> xFiles = result.xFiles;

  // Individually
  XFile xFile = result.files.first.xFile;
} else {
  // User canceled the picker
}

Pick and upload a file to Firebase Storage with Flutter Web

FilePickerResult? result = await FilePicker.pickFiles();

if (result != null) {
  Uint8List fileBytes = result.files.first.bytes;
  String fileName = result.files.first.name;
  
  // Upload file
  await FirebaseStorage.instance.ref('uploads/$fileName').putData(fileBytes);
}

For full usage details refer to the Wiki above.