question: private void drawLThumb ( float screenCoord , Thumb obj , Canvas canvas ) { Log . w ( "lftBoolean" , isLeftThumb . toString ( ) ) ; canvas . drawBitmap ( isLeftThumb ? Left_thumbPressedImage : Left_thumbImage_nrml , screenCoord - thumbHalfWidth , ( float ) ( ( 0.5f * getHeight ( ) ) - thumbHalfHeight ) , paint ) ; isLeftThumb = false ; }
target:  Draws the "normal" resp. "pressed" thumb image on specified x-coordinate.