2D 绘图

require "import"
import "android.app.*"
import "android.os.*"
import "android.widget.*"
import "android.view.*"
import "android.graphics.*"
activity.setTitle('AndroLua')

paint=Paint()
paint.setARGB(100,0,250,0)
paint.setStrokeWidth(20)
paint.setTextSize(28)

sureface = SurfaceView(activity);
callback=SurfaceHolder_Callback{
    surfaceChanged=function(holder,format,width,height)
        end,
    surfaceCreated=function(holder)
        ca=holder.lockCanvas()
        if (ca~=nil) then
            ca.drawRGB(0,79,90);
            ca.drawRect(0,0,200,300,paint)
            end
        holder.unlockCanvasAndPost(ca)
        end,
    surfaceDestroyed=function(holder)
        end
    }
holder=sureface.getHolder()
holder.addCallback(callback)
activity.setContentView(sureface)