我的NavigationViewonClick事件不工作。以下是我一一尝试过的代码fragment，但没有任何效果:使用OnClick()方法实现NavigationView.OnNavigationItemSelectedListener设置NavigationItemSelectedListener方法nav=(NavigationView)findViewById(R.id.nav);nav.setNavigationItemSelectedListener(newNavigationView.OnNavigationItemSelectedListener(){@Overrid

protectedvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);/*IniUI*/mToolbar=(Toolbar)findViewById(t);setupToolbar();mNavigationRv=(RecyclerView)findViewById(R.id.navigation_rv);mDrawerLayout=(DrawerLayout)findViewById(R.id.drawer);m