I wrote a little test program that has a custom SurfaceView class and some buttons to let me cause various operations on them (draw bitmap over all of it - white or black, draw a circle on it, draw blue bitmap and circle).
In each case, the drawing is done on a canvas obtained with getHolder.lockCanvas(). If I draw the white background in one op, then draw the red circle, the background vanishes. If I draw the red circle again, the white background re-appears behind it. Other operations have similar results - it's as if there is a toggle on the "background" pixels (those untouched by the circle drawing) - draw the circle once - get one background, draw it again, get another. Obviously I don't understand the semantics of SurfaceView. Any pointers? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
