objective-c - 在 Objective-C 中实现“在 Finder 中显示”按钮

Question

在我的应用程序中，我想创建一个“在 Finder 中显示”按钮。

我已经能够弄清楚如何弹出该目录的 Finder 窗口，但还没有弄清楚如何像操作系统那样突出显示文件。

这可能吗？

Answer 1

NSArray *fileURLs = [NSArray arrayWithObjects:fileURL1, /* ... */ nil];
[[NSWorkspace sharedWorkspace] activateFileViewerSelectingURLs:fileURLs];

从选择特定文件的 Launch OSX Finder 窗口中被盗

Answer 2

你可以使用这样的NSWorkspace方法-selectFile:inFileViewerRootedAtPath:：

[[NSWorkspace sharedWorkspace] selectFile:fullPathString inFileViewerRootedAtPath:pathString];

Answer 3

值得一提的是，欧文的方法仅适用于 osx 10.6 或更高版本（参考：https ://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ApplicationKit/Classes/NSWorkspace_Class/Reference/Reference.html ）。

因此，如果你写的东西要在老一代人身上运行，最好按照贾斯汀建议的方式来做，因为它还没有被弃用（还）。

Answer 4

// Place the following code within your Document subclass

// enable or disable the menu item called "Show in Finder"
override func validateUserInterfaceItem(anItem: NSValidatedUserInterfaceItem) -> Bool {
    if anItem.action() == #selector(showInFinder) {
        return self.fileURL?.path != nil;
    } else {
        return super.validateUserInterfaceItem(anItem)
    }
}

// action for the "Show in Finder" menu item, etc.
@IBAction func showInFinder(sender: AnyObject) {

    func showError() {
        let alert = NSAlert()
        alert.messageText = "Error"
        alert.informativeText = "Sorry, the document couldn't be shown in the Finder."
        alert.runModal()
    }

    // if the path isn't known, then show an error
    let path = self.fileURL?.path
    guard path != nil else {
        showError()
        return
    }

    // try to select the file in the Finder
    let workspace = NSWorkspace.sharedWorkspace()
    let selected = workspace.selectFile(path!, inFileViewerRootedAtPath: "")
    if !selected {
        showError()
    }

}