Add a Drag and drop view (swift) for your macOS app easily

I used this in my mac apps, Pushever, test APNS push notification easily and PDF Page Numberer.

• macOS 10.12
• Xcode 9.4.1
• Swift 4.1

Copy the ADragDropView.swift and NSDraggingInfo FilePathURL.swift inside the ADragDropView folder to your project.

pod 'ADragDropView'

On the top of view controller, add

import ADragDropView

Run the ADragDropViewExample target in Xcode to try the demo.

Drag and drop a Custom View to your view controller in Interface Builder, set its class to ADragDropView and create an IBOutlet for it.

Set delegate (usually to the view controller), dragDropView.delegate = self .

Set the allowed file extensions: dragDropView.acceptedFileExtensions = ["png", "jpg", "jpeg", "gif"] .

Implement the two delegate methods to handle dropped file(s) :

extension ViewController: ADragDropViewDelegate {
    // when one file is dropped
    func dragDropView(_ dragDropView: ADragDropView, droppedFileWithURL URL: URL) {
        
        // action to do when the file is dropped
    }
    
    // when multiple files are dropped
    func dragDropView(_ dragDropView: ADragDropView, droppedFilesWithURLs URLs: [URL]) {
        
       // action to do when the files are dropped
    }
}