在应用程序TextEdit中,可以通过以下过程转换富文本格式:格式,制作纯文本。我怎样才能在Swift中执行此操作?
我使用NSPasteboard框架:
let pasteboard = NSPasteboard.general
...
pasteboard.declareTypes([NSPasteboard.PasteboardType.string], owner: nil)
...
为了检索剪贴板内容:
var clipboardContents = ""
...
clipboardContents = pasteboard.string(forType: .string) ?? "Something went wrong"
最后一个语句在控制台窗口中生成纯文本,但是在TextExit等其他应用程序中使用剪贴板内容时不会转换为它。非常感谢您的帮助!
您只需要从粘贴板获取rtf数据,然后使用它初始化新的属性字符串。完成后,您只需访问NSAttributedString字符串属性:
import Cocoa
class ViewController: NSViewController {
@IBOutlet weak var simpleText: NSTextField!
@IBOutlet weak var labelField: NSTextField!
override func viewDidLoad() {
super.viewDidLoad()
NSPasteboard.general.declareTypes([.rtf, .string], owner: nil)
}
@IBAction func pasteAction(_ sender: NSButton) {
guard let availableType = NSPasteboard.general.availableType(from: [.rtf, .string]) else { return }
switch availableType {
case .rtf:
print("Rich Text Data")
if let data = NSPasteboard.general.data(forType: .rtf),
let attributedString = NSAttributedString(rtf: data, documentAttributes: nil) {
labelField.attributedStringValue = attributedString
simpleText.stringValue = attributedString.string
}
case .string:
print("Simple Text")
if let string = NSPasteboard.general.string(forType: .string) {
simpleText.stringValue = string
}
default: break
}
}
}