Thank you once again. I tried to run FingerPaint application instead
of TouchPaint and it works like charm :)


On Dec 30, 10:23 am, hollowback <[email protected]> wrote:
> Thanks for reply.
> It is probably what I need, but when I run TouchPaint app and tried to
> draw something, nothing happens. Could you try this demo too, please?
> When I run it in debug mode, it looks like the onDraw method is never
> called.
>
> On Dec 30, 9:28 am, XC He <[email protected]> wrote:
>
>
>
> > You can reference the ApiDemos in the SDK
> > "TouchPaint"
>
> > Actually, you have to redraw it.
>
> > But it may another solution for you question.
>
> > 2009/12/30 hollowback <[email protected]>
>
> > > Nobody knows?
> > > Ok, so is it way to avoid screen redraw while calling invalidate? I
> > > know it is invalidate(Rect) but it is not easy to calculate accurate
> > > rectangle. I just need that if I draw some lines, I want it remains on
> > > canvas.
>
> > > On Dec 29, 10:37 pm, hollowback <[email protected]> wrote:
> > > > Hi, what is best way to create app in which I only need to draw simple
> > > > lines through onTouchEvent?
> > > > When i use invalidate everytime i draw any line, that erase lines i
> > > > draw before. But if I use some List structure to store drawed lines it
> > > > lose performance.
> > > > Is there any simple way to do it?
>
> > > > Thanks for reply
>
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