// 그리기
void Draw(Canvas canvas) {
Paint pnt = new Paint();
pnt.setAntiAlias(true);
int r;
int alpha;
for (r = rad, alpha = 1; r > 4; r--, alpha += 5) {
pnt.setColor(Color.argb(alpha, Color.red(color), Color.green(color), Color.blue(color)));
canvas.drawCircle(x, y, r, pnt);
}
}
// 화면 그리기
public void onDraw(Canvas canvas) {
canvas.drawBitmap(mBack, 0, 0, null);
for (int idx = 0; idx < arBall.size(); idx++) {
arBall.get(idx).Draw(canvas);
}
}