InvalidationTrigger
For internal use by platform renderers.
For internal use by platform renderers.
MarginChanged = 32
For internal use by platform renderers.
MeasureChanged = 1
For internal use by platform renderers.
RendererReady = 16
For internal use by platform renderers.
For internal use by platform renderers.
Undefined = 0
For internal use by platform renderers.
For internal use by platform renderers.