flutter_document_picker

Allows user pick a document. Picked document is copied to app temporary directory. Optionally allows pick document with specific extension only.

When file is picked its extension is checked using allowedFileExtensions parameter. Then file is copied to app temp directory. Copied file path is returned as result. If picked file extension is not in allowedFileExtensions list then extension_mismatch error is returned.

In Android Intent.ACTION_OPEN_DOCUMENT is used. This intent is supported only from Android 19 (KitKat) SDK version. So this plugin can be used only if app minSdkVersion is 19 or more.

In iOS UIDocumentPickerViewController is used. Files can be filtered by list of UTI types using allowedUtiTypes parameter. Picked file path is returned as result.

Params

Plugin has 3 optional parameters to help pick only specific document type:

  • List<String> allowedUtiTypes (used only in iOS)

    In iOS Uniform Type Identifiers is used to check document types. If list is null or empty "public.data" document type will be provided. Only documents with provided UTI types will be enabled in iOS document picker.

    More info: https://developer.apple.com/library/archive/qa/qa1587/_index.html

  • List<String> allowedFileExtensions (used both in iOS and in Android)

    List of file extensions that picked file should have. If list is null or empty - picked document extension will not be checked.

  • allowedMimeType (used only in Android)

    Only files with provided MIME type will be shown in document picker. If param is null - */* MIME type will be used.

Example

//Without parameters:
final path = await FlutterDocumentPicker.openDocument();
  
  ...

    
//With parameters:
FlutterDocumentPickerParams params = FlutterDocumentPickerParams(      
  allowedFileExtensions: ['mwfbak'],
  allowedUtiTypes: ['com.sidlatau.example.mwfbak'],
  allowedMimeType: 'application/*',
);

final path = await FlutterDocumentPicker.openDocument(params: params);

Getting Started

For help getting started with Flutter, view our online documentation.

For help on editing plugin code, view the documentation.

Libraries

flutter_document_picker

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]