Method SetNeedsDisplay
SetNeedsDisplay()
Sets a flag indicating this view needs to be redisplayed because its state has changed.
public void SetNeedsDisplay()
SetNeedsDisplay(Rect)
Flags the view-relative region on this View as needing to be repainted.
public void SetNeedsDisplay(Rect region)
Parameters
region
RectThe view-relative region that must be flagged for repaint.