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 ADragDropViewRun 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
}
}