File Manager

FileManager is a wonderful widget that allows you to manage files and folders, pick files and folders, and do a lot more. Designed to feel like part of the Flutter framework.

Compatibility

✅   Android
✅   Linux
❌   Windows (in progress)
❌   MacOS (active issue: MacOS support)

Usage

Make sure to check out examples for more details.

Installation

Dependencies Add the following line to pubspec.yaml:

dependencies:
  file_manager: ^1.0.0

Give storage permission to application

Android

Beside needing to add WRITE_EXTERNAL_STORAGE , READ_EXTERNAL_STORAGE and MANAGE_EXTERNAL_STORAGE to your android/app/src/main/AndroidManifest.xml.

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.xxx.yyy">
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />

...
</manifest>

also add for Android 10

    <application
      android:requestLegacyExternalStorage="true"   
      .../>

You also need Runtime Request Permission allow storage permission from app setting manually or you may use any package such as permission_handler.

or use FileManager to request permission at runtime.

  // request permission
  await controller.requestFilesAccessPermission();

  or 

  await FileManager.requestFilesAccessPermission();

Basic setup

The complete example is available here.

Required parameter for FileManager are controller and builder

• controller The controller updates value and notifies its listeners, and FileManager updates itself appropriately whenever the user modifies the path or changes the sort-type with an associated FileManagerController.

final FileManagerController controller = FileManagerController();

• builder This function allows you to create custom widgets and retrieve a list of entities List<FileSystemEntity>.

Sample code

FileManager(
    controller: controller,
    builder: (context, snapshot) {
    final List<FileSystemEntity> entities = snapshot;
      return ListView.builder(
        itemCount: entities.length,
        itemBuilder: (context, index) {
          return Card(
            child: ListTile(
              leading: FileManager.isFile(entities[index])
                  ? Icon(Icons.feed_outlined)
                  : Icon(Icons.folder),
              title: Text(FileManager.basename(entities[index])),
              onTap: () {
                if (FileManager.isDirectory(entities[index])) {
                    controller.openDirectory(entities[index]);   // open directory
                  } else {
                      // Perform file-related tasks.
                  }
              },
            ),
          );
        },
      );
  },
),

FileManager

Properties	Description
loadingScreen	For the loading screen, create a custom widget. A simple Centered CircularProgressIndicator is provided by default.
emptyFolder	For an empty screen, create a custom widget.
controller	For an empty screen, create a custom widget.
hideHiddenEntity	Hide the files and folders that are hidden.
builder	This function allows you to create custom widgets and retrieve a list of entities List<FileSystemEntity>.

FileManagerController

Properties	Description
getSortedBy	The sorting type that is currently in use is returned.
setSortBy	is used to set the sorting type. SortBy{ name, type, date, size }. ie: controller.sortBy(SortBy.date)
getCurrentDirectory	Get current Directory
getCurrentPath	Get current path, similar to getCurrentDirectory.
setCurrentPath	Set current directory path by providing String of path, similar to openDirectory. List<FileSystemEntity>.
isRootDirectory	return true if current directory is the root. false, if the current directory not on root of the storage.
goToParentDirectory	Jumps to the parent directory of currently opened directory if the parent is accessible.
openDirectory	Open directory by providing Directory.
titleNotifier	ValueNotifier of the current directory's basename

ControlBackButton

When the current directory is not root, this widget registers a callback to prevent the user from dismissing the window, or controllers the system's back button

ie:-

  // Wrap Scaffold containing FileManage with ControlBackButton
  ControlBackButton(
    controller: controller
    child: Scaffold(
      appBar: AppBar(...)
      body: FileManager(
        ...
      )
    )
  )

Others

Properties	Description
isFile	check weather FileSystemEntity is File.
isDirectory	check weather FileSystemEntity is Directory.
basename	Get the basename of Directory or File. Provide File, Directory or FileSystemEntity and returns the name as a String. If you want to hide the extension of a file, you may use optional parameter showFileExtension. ie controller.dirName(dir, true)
formatBytes	Convert bytes to human readable size.getCurrentDirectory.
setCurrentPath	Set current directory path by providing String of path, similar to openDirectory. List<FileSystemEntity>.
getFileExtension	Return file extension as String. ie:- File("/../image.png") to "png".
getStorageList	Get list of available storage in the device, returns an empty list if there is no storage List<Directory>
createFolder	Creates the directory if it doesn't exist. Requires currentPath and Name of the Directory.

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Project Created & Maintained By

• DevsOnFlutter

Contributions

Contributions are welcomed!

If you feel that a hook is missing, feel free to open a pull-request.

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• Describe the use-case.

• Open an issue explaining why we need this hook, how to use it, ... This is important as a hook will not get merged if the hook doesn't appeal to a large number of people.

• If your hook is rejected, don't worry! A rejection doesn't mean that it won't be merged later in the future if more people shows an interest in it. In the mean-time, feel free to publish your hook as a package on pub.dev.

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