AndEngine安全移除精灵的方式

final EngineLock engineLock = this.mEngine.getEngineLock();
engineLock.lock();
/* Now it is save to remove the entity! */
pScene.detachChild(this.mFaceToRemove);
this.mFaceToRemove.dispose();
this.mFaceToRemove = null;

engineLock.unlock();