在Swift中获取鼠标坐标

Question

斯威夫特新手在这里.

我一直在完成一项应该是微不足道的任务.我想做的就是按需获取鼠标光标的x,y坐标.在我抓住指针的坐标之前,我宁愿不等待鼠标移动事件发生.

非常感谢任何帮助!

Answer 1

您应该看看NSEvent方法mouseLocation

编辑/更新:Xcode 8.2.1•Swift 3.0.2

如果您希望在应用程序处于活动状态时监视任何窗口上的事件,则可以添加与mouseMoved掩码匹配的LocalMonitorForEvents,如果它不是活动的GlobalMonitorForEvents:

import Cocoa

class ViewController: NSViewController {
    lazy var window: NSWindow = self.view.window!
    var mouseLocation: NSPoint { NSEvent.mouseLocation }
    var location: NSPoint { window.mouseLocationOutsideOfEventStream }
    override func viewDidLoad() {
        super.viewDidLoad()
        NSEvent.addLocalMonitorForEvents(matching: [.mouseMoved]) {
            print("mouseLocation:", String(format: "%.1f, %.1f", self.mouseLocation.x, self.mouseLocation.y))
            print("windowLocation:", String(format: "%.1f, %.1f", self.location.x, self.location.y))
            return $0
        }
        NSEvent.addGlobalMonitorForEvents(matching: [.mouseMoved]) { _ in
            print(String(format: "%.0f, %.0f", self.mouseLocation.x, self.mouseLocation.y))
        }
    }
    override func viewWillAppear() {
        super.viewWillAppear()
        window.acceptsMouseMovedEvents = true
    }
}

斯威夫特2

import Cocoa

class ViewController: NSViewController {
    lazy var window: NSWindow = self.view.window!
    var mouseLocation: NSPoint { NSEvent.mouseLocation }
    var location: NSPoint { window.mouseLocationOutsideOfEventStream }
    override func viewDidLoad() {
        super.viewDidLoad()
        NSEvent.addLocalMonitorForEvents(matching: [.mouseMoved]) {
            print("mouseLocation:", String(format: "%.1f, %.1f", self.mouseLocation.x, self.mouseLocation.y))
            print("windowLocation:", String(format: "%.1f, %.1f", self.location.x, self.location.y))
            return $0
        }
        NSEvent.addGlobalMonitorForEvents(matching: [.mouseMoved]) { _ in
            print(String(format: "%.0f, %.0f", self.mouseLocation.x, self.mouseLocation.y))
        }
    }
    override func viewWillAppear() {
        super.viewWillAppear()
        window.acceptsMouseMovedEvents = true
    }
}

如果要监视鼠标位置,则需要创建自定义窗口并覆盖mouseMoved事件,如下所示:

import Cocoa

class ViewController: NSViewController {
    lazy var window: NSWindow = self.view.window!
    var mouseLocation: NSPoint { NSEvent.mouseLocation }
    var location: NSPoint { window.mouseLocationOutsideOfEventStream }
    override func viewDidLoad() {
        super.viewDidLoad()
        NSEvent.addLocalMonitorForEvents(matching: [.mouseMoved]) {
            print("mouseLocation:", String(format: "%.1f, %.1f", self.mouseLocation.x, self.mouseLocation.y))
            print("windowLocation:", String(format: "%.1f, %.1f", self.location.x, self.location.y))
            return $0
        }
        NSEvent.addGlobalMonitorForEvents(matching: [.mouseMoved]) { _ in
            print(String(format: "%.0f, %.0f", self.mouseLocation.x, self.mouseLocation.y))
        }
    }
    override func viewWillAppear() {
        super.viewWillAppear()
        window.acceptsMouseMovedEvents = true
    }
}

注意:您需要将您的窗口属性acceptMouseMovedEvents设置为true.

import Cocoa

class ViewController: NSViewController {
    lazy var window: NSWindow = self.view.window!
    var mouseLocation: NSPoint { NSEvent.mouseLocation }
    var location: NSPoint { window.mouseLocationOutsideOfEventStream }
    override func viewDidLoad() {
        super.viewDidLoad()
        NSEvent.addLocalMonitorForEvents(matching: [.mouseMoved]) {
            print("mouseLocation:", String(format: "%.1f, %.1f", self.mouseLocation.x, self.mouseLocation.y))
            print("windowLocation:", String(format: "%.1f, %.1f", self.location.x, self.location.y))
            return $0
        }
        NSEvent.addGlobalMonitorForEvents(matching: [.mouseMoved]) { _ in
            print(String(format: "%.0f, %.0f", self.mouseLocation.x, self.mouseLocation.y))
        }
    }
    override func viewWillAppear() {
        super.viewWillAppear()
        window.acceptsMouseMovedEvents = true
    }
}