NSOpenPanel in Swift。開く方法は?
私はこのObjective-Cコードを持っています:
- (IBAction)selectFileButtonAction:(id)sender {
//create open panel...
NSOpenPanel* openPanel = [NSOpenPanel openPanel];
// NSLog(@"Open Panel");
//set restrictions / allowances...
[openPanel setAllowsMultipleSelection: NO];
[openPanel setCanChooseDirectories:NO];
[openPanel setCanCreateDirectories:NO];
[openPanel setCanChooseFiles:YES];
//only allow images...
[openPanel setAllowedFileTypes:[NSImage imageFileTypes]];
//open panel as sheet on main window...
[openPanel beginWithCompletionHandler:^(NSInteger result) {
if (result == NSFileHandlingPanelOKButton) {
//get url (should only be one due to restrictions)...
for( NSURL* URL in [openPanel URLs] ) {
// self.roundClockView1.URL = URL ;
_thePath = URL;
currentSelectedFileName = [[URL path] lastPathComponent];
// [_roundClockView1 setNeedsDisplay:1];
[self openEditor];
}
}
}];
これをSwiftでも同じように記述したいと思います。これが私が今までにやったことです:
@IBAction func selectAnImageFromFile(sender: AnyObject) {
var openPanel = NSOpenPanel()
openPanel.allowsMultipleSelection = false
openPanel.canChooseDirectories = false
openPanel.canCreateDirectories = false
openPanel.canChooseFiles = true
openPanel.beginWithCompletionHandler(handler: (Int) -> Void)
}
ここで私は行き詰まっています。手伝ってくれてありがとう。
@IBAction func selectAnImageFromFile(sender: AnyObject) {
let openPanel = NSOpenPanel()
openPanel.allowsMultipleSelection = false
openPanel.canChooseDirectories = false
openPanel.canCreateDirectories = false
openPanel.canChooseFiles = true
openPanel.beginWithCompletionHandler { (result) -> Void in
if result == NSFileHandlingPanelOKButton {
//Do what you will
//If there's only one URL, surely 'openPanel.URL'
//but otherwise a for loop works
}
}
}
完了ハンドラーの部分で動かなくなったと思いますか?いずれにせよ、開いているパネルからのURLの処理はそこからは問題ありませんが、さらに追加したい場合はコメントしてください。 :)
Swift 4の場合、応答のチェックは
if response == .OK {
...
}
私の2セントSwift 5.0
override func showChooseFileDialog(title: String){
let openPanel = NSOpenPanel()
openPanel.canChooseFiles = false
openPanel.allowsMultipleSelection = false
openPanel.canChooseDirectories = false
openPanel.canCreateDirectories = false
openPanel.title = title
openPanel.beginSheetModal(for:self.view.window!) { (response) in
if response == .OK {
let selectedPath = openPanel.url!.path
// do whatever you what with the file path
}
openPanel.close()
}
}
Swift 4バージョン:
let openPanel = NSOpenPanel()
openPanel.canChooseFiles = false
openPanel.allowsMultipleSelection = false
openPanel.canChooseDirectories = false
openPanel.canCreateDirectories = false
openPanel.title = "Select a folder"
openPanel.beginSheetModal(for:self.view.window!) { (response) in
if response.rawValue == NSFileHandlingPanelOKButton {
let selectedPath = openPanel.url!.path
// do whatever you what with the file path
}
openPanel.close()
}