GeometryChangedEvent
是目前唯一的布局事件。
GeometryChangedEvent
的基类是 EventBase 类。
事件 | 描述 | 涓滴 | 冒泡 | 可取消 |
---|---|---|---|---|
GeometryChangedEvent | 当元素的位置或尺寸发生变化时发送。 |
oldRect
:元素先前的位置和尺寸。
newRect
:元素的新位置和尺寸。
GeometryChangedEvent
在元素的位置或尺寸发生变化时发送。此类型的事件仅发送到事件目标。
收到回调后,必须从 GeometryChangedEvent
事件中注销,这是因为额外的布局更改将再次触发回调。
target
:具有新几何形状的元素。
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