[iOS] FileExplorer：一款完整的文件资源管理器组件

FileExplorer (iOS 10.0+)

:construction_worker: Project created and maintained by Rafał Augustyniak . You can find me on twitter ( @RaAugustyniak ).

Introduction

FileExplorer is a control designed to provide an easy way to browse and interact with local file system on iOS devices. It works as file browser with additional possibility of deleting specified files and/or directories and possibility to choose files and/or directories.

Images	Audio Files	Videos	Directories	PDFs	Preview

Table of Contents:

• Installation
• Basic Usage
• Customizations
  • Deciding Which Files and/or Directories Should Be Visible
  • Using FileExplorer as a Way to Choose Files and/or Directories
  • Deciding Whether User Can Delete Files and/or Directories
• Adding Support for Additional File Types
• Documentation

Installation

CocoaPods

CocoaPods is the recommended way to add FileExplorer to your project.

1. Add additional entry to your Podfile.

   pod "FileExplorer", "~> 1.0.2"

2. Install Pod(s) running pod install command.

3. Include FileExplorer using import FileExplorer .

Source files

1. Downloaded the latest version of the library usinglink.
2. Copy content of the downloaded (and unzipped) zip file into your project by dragging it into Project's navigator files structure.

Basic Usage

Check out the demo for example usage of library. Make sure you read the FileExplorer documentation on Cocoa Docs .

Basics

1. Add following import in file of your project when you want to use RATreeView:

   import FileExplorer

2. Simplest way to present File Explorer:

   let fileExplorer = FileExplorerViewController()
   self.present(fileExplorer, animated: true, completion: nil)

Customizations

FileExplorer allows for a lot of customizations. Some of them are discussed below.

Deciding Which Files and/or Directories Should Be Visible

FileExplorerViewController has filters ( fileFilters and ignoredFileFilters properties) which can be used to select which files or directories should or shouldn't be displayed to the user.

Specify which files should be visible to the user:

let fileExplorer = FileExplorerViewController()

//Only files with `txt` and `jpg` extensions will be visible
fileExplorer.fileFilters = [Filter.extension("txt"), Filter.extension("jpg")]

self.present(fileExplorer, animated: true, completion: nil)

Specify which files should not be visible to the user:

let fileExplorer = FileExplorerViewController()

//Everything but directories will be visible
fileExplorer.ignoredFileFilters = [Filter.type(.directory)]

self.present(fileExplorer, animated: true, completion: nil)

Combining both types of filters:

let fileExplorer = FileExplorerViewController()

//Only files with `.txt` extension that were modified prior to `referenceDate` will be visible
fileExplorer.fileFilters = [Filter.extension("txt")]
fileExplorer.ignoredFileFilters = [Filter.Filter.modificationDatePastOrEqualTo(referenceDate)]

self.present(fileExplorer, animated: true, completion: nil)

Using FileExplorer as a Way to Choose Files and/or Directories

Configure FileExplorer so that user is allowed to choose files and/or directories:

let fileExplorer = FileExplorerViewController()
fileExplorer.canChooseFiles = true //specify whether user is allowed to choose files
fileExplorer.canChooseDirectories = false //specify whether user is allowed to choose directories
fileExplorer.allowsMultipleSelection = true //specify whether user is allowed to choose multiple files and/or directories
fileExplorer.delegate = self

self.present(fileExplorer, animated: true, completion: nil)

You are informed about choosen files by delegate callback:

public func fileExplorerViewController(_ controller: FileExplorerViewController, didChooseURLs urls: [URL]) {
    //Your code here
}

Deciding Whether User Can Delete Files and/or Directories

Configure FileExplorer so that user is allowed to remove files and/or directories:

let fileExplorer = FileExplorerViewController()
fileExplorer.canRemoveFiles = true //specify whether user is allowed to remove files
fileExplorer.canRemoveDirectories = false //specify whether user is allowed to remove directories

self.present(fileExplorer, animated: true, completion: nil)

Adding Support for Additional File Types

FileExplorer was built with expansibility in mind. It allows its users to register their own file types and provide thumbnails and preview view controllers for them. The whole process is simple and straightforward.

It starts with the implementation of class that conforms to FileSpecificationProvider protocol.

class CustomFileSpecificationProvider: FileSpecificationProvider {
   public class var extensions: [String] {
      return ["foo"]
   }

   public class func thumbnail(forItemAt url: URL, with size: CGSize) -> UIImage? {
      return nil; // FileExplorer uses default thumbnail if nil is returned
   }

   public class func viewControllerForItem(at url: URL, data: Data?, attributes: FileAttributes) -> UIViewController {
      let viewController = CustomViewController()
      //configure your custom view controller here
      return viewController
   }
}

After that, created class must be registered in an instance of FileExplorerViewController class:

let fileExplorer = FileExplorerViewController()
fileExplorer.fileSpecificationProviders = [CustomFileSpecificationProvider.self]

self.present(fileExplorer, animated: true, completion: nil)

That's all! From now on instance of FileExplorerViewController uses CustomFileSpecificationProvider to provide thumbnails and view controllers for files with foo extension.

Documentation

Documentation is available on CocoaPods .

Author

FileExplorer was created by Rafał Augustyniak. You can find me on twitter ( @RaAugustyniak ).

License

MIT licensed, Copyright (c) 2016 Rafał Augustyniak, @RaAugustyniak