前后移动UIImages

Question

我不知道我是否正确地做到了这一点。请帮帮我。我试图在屏幕上来回移动两个图像，使其看起来像是关闭和打开。

while (x>=1) { 

    var customFrame1 = Laser1.frame 
    if isImageLeftSide { 
     customFrame1.origin.x = customFrame1.origin.x + 25 
    } 
    else { 
     customFrame1.origin.x = customFrame1.origin.x - 25 
    } 

    var customFrame2 = Laser2.frame 
    if isImageLeftSide { 
     customFrame2.origin.x = customFrame2.origin.x + 25 
    } 
    else { 
     customFrame2.origin.x = customFrame2.origin.x - 25 
    } 
     x += 1 
    } 

Answer 1

使用此：

while (x >= 1) { 

    UIView.animateWithDuration(YOUR_ANIMATION_DURATION) { 

     if isImageLeftSide { 
      Laser1.frame.origin.x += 25 
     } else { 
      Laser1.frame.origin.x -= 25 
     } 
    } 

    UIView.animateWithDuration(YOUR_ANIMATION_DURATION) { 

     if isImageLeftSide { 
      Laser2.frame.origin.x += 25 
     } else { 
      Laser2.frame.origin.x -= 25 
     } 
    } 

    x += 1 
} 

注：如果Laser1和Laser2是类的属性，你将不得不使用在动画块self.Laser1和self.Laser2。