Scale Events

Scale events receive the gesture event properties.
译：缩放事件

1. Events.Scale — Scale a layer with two pointers. 译：以两指针对一图层
2. Events.ScaleStart — Start scaling. 译：开始
3. Events.ScaleEnd — End scaling. 译：缩放

  layerA = new Layer
layerA.pinchable.enabled = true

layerA.on Events.Scale, ->
    print layerA.scale

Scale Event Shortcuts
译：缩放事件快捷键

＃For Events.Scale 
layerA.onScale ->
    print "Currently scaling"

＃For Events.ScaleStart 
layerA.onScaleStart ->
    print "Start scaling"

＃For Events.ScaleEnd 
layerA.onScaleEnd ->
    print "End scaling"