The following code is derived from the B4XCanvas drawing video tutorial. I loaded a bitmap accordingly.. but canvas.ClearRect does not clear the picture or the Rect as shown in the Sub Erase.
Anybody can help ??
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Anybody can help ??
B4X:
Sub Class_Globals
Private xui As XUI
Private pnlDrawing As B4XView
Private canvas As B4XCanvas
Private bground As B4XBitmap
Private bgRect As B4XRect
End Sub
Public Sub Initialize(Parent As B4XView)
Parent.LoadLayout("drawing")
canvas.Initialize(pnlDrawing)
bground= xui.LoadBitmapResize(File.DirAssets,"board.png",400dip,300dip,True)
bgRect.Initialize(0dip,0dip,bRight,bBot)
canvas.DrawBitmap(bground,bgRect)
canvas.Invalidate
End Sub
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Sub Erase
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[COLOR=rgb(147, 101, 184)] canvas.ClearRect(bgRect)[/COLOR] ' ⬅
End sub⬅?