用户从代码输入错误密码时摇动窗口

Question

当我们在OSX中需要密码的程序中输入错误的密码时,窗口会震动我如何在我的程序中实现它？

Answer 1

用户输入错误密码时使用以下代码

static int numberOfShakes = 8;
    static float durationOfShake = 0.5f;
    static float vigourOfShake = 0.05f;

    CGRect frame=[self.view.window frame];
    CAKeyframeAnimation *shakeAnimation = [CAKeyframeAnimation animation];

    CGMutablePathRef shakePath = CGPathCreateMutable();
    CGPathMoveToPoint(shakePath, NULL, NSMinX(frame), NSMinY(frame));
    int index;
    for (index = 0; index < numberOfShakes; ++index)
    {
        CGPathAddLineToPoint(shakePath, NULL, NSMinX(frame) - frame.size.width * vigourOfShake, NSMinY(frame));
        CGPathAddLineToPoint(shakePath, NULL, NSMinX(frame) + frame.size.width * vigourOfShake, NSMinY(frame));
    }
    CGPathCloseSubpath(shakePath);
    shakeAnimation.path = shakePath;
    shakeAnimation.duration = durationOfShake;

    [self.view.window setAnimations:[NSDictionary dictionaryWithObject: shakeAnimation forKey:@"frameOrigin"]];
    [[self.view.window animator] setFrameOrigin:[self.view.window frame].origin];

Answer 2

这是@SajjadZare 在 Swift 中的回答：

斯威夫特 2.0：

        let numberOfShakes:Int = 8
        let durationOfShake:Float = 0.5
        let vigourOfShake:Float = 0.05

        let frame:CGRect = (self.view.window?.frame)!
        let shakeAnimation = CAKeyframeAnimation()

        let shakePath = CGPathCreateMutable()
        CGPathMoveToPoint(shakePath, nil, NSMinX(frame), NSMinY(frame))

        for _ in 1...numberOfShakes {
            CGPathAddLineToPoint(shakePath, nil, NSMinX(frame) - frame.size.width * CGFloat(vigourOfShake), NSMinY(frame))
            CGPathAddLineToPoint(shakePath, nil, NSMinX(frame) + frame.size.width * CGFloat(vigourOfShake), NSMinY(frame))
        }

        CGPathCloseSubpath(shakePath)
        shakeAnimation.path = shakePath
        shakeAnimation.duration = CFTimeInterval(durationOfShake)
        self.view.window?.animations = ["frameOrigin":shakeAnimation]
        self.view.window?.animator().setFrameOrigin(self.view.window!.frame.origin)

斯威夫特 3.0：

let numberOfShakes:Int = 8
    let durationOfShake:Float = 0.5
    let vigourOfShake:Float = 0.05

    let frame:CGRect = (self.view.window!.frame)
    let shakeAnimation = CAKeyframeAnimation()

    let shakePath = CGMutablePath()
    shakePath.move(to: CGPoint(x: NSMinX(frame), y: NSMinY(frame)))

    for _ in 1...numberOfShakes {
        shakePath.addLine(to: CGPoint(x:NSMinX(frame) - frame.size.width * CGFloat(vigourOfShake), y: NSMinY(frame)))
        shakePath.addLine(to: CGPoint(x:NSMinX(frame) + frame.size.width * CGFloat(vigourOfShake), y: NSMinY(frame)))
    }

    shakePath.closeSubpath()
    shakeAnimation.path = shakePath
    shakeAnimation.duration = CFTimeInterval(durationOfShake)
    self.view.window?.animations = ["frameOrigin":shakeAnimation]
    self.view.window?.animator().setFrameOrigin((self.view.window?.frame.origin)!)