比方代码是：
bool GameScence::init() {
....
Device::setAccelerometerEnabled(true);
auto accelerationListener = EventListenerAcceleration::create(CC_CALLBACK_2(GameScence::onAcceleration, this));
_eventDispatcher->addEventListenerWithSceneGraphPriority(accelerationListener, this);
....
}
void GameScence::onEnter() {
Node::onEnter();
}
void GameScence::onExit() {
Node::onExit();
Device::setAccelerometerEnabled(false);
}
void GameScence::onAcceleration(Acceleration *acc, Event *event) {
....
}
<p> </p>
</p>
<p><p> </p>
同一个场景切换时，在onExit中需要把Accelerometer关闭，然后于init()中再重启并注册吗？</p>
<p>如果要，那init()中算不算注册了两次监听？</p>
<p> </p>
<p>另外一个问题，init()中的Accelerometer与事件代码，移到onEnter()会不会比较好？</p>