public void onDraw(Canvas canvas) {
canvas.save();
canvas.translate(margin, 0);
super.onDraw(canvas);
canvas.restore();
}
//save()是为canvas保存一个副本,在resore时候恢复canvas用的对象就是用sava保存的副本
public void onDraw(Canvas canvas) {
canvas.save();
canvas.translate(margin, 0);
super.onDraw(canvas);
canvas.restore();
}
//save()是为canvas保存一个副本,在resore时候恢复canvas用的对象就是用sava保存的副本