Android 喷气背包组件 - 在导航抽屉点击烤面包

Question

我正在使用导航喷气背包并设置了导航抽屉。 每件事都很好。 但问题是我想在用户单击“nav_share”时显示祝酒词，但没有显示...

这是我制作导航抽屉的方法

DrawerLayout drawer = findViewById(R.id.drawer_layout);
        NavigationView navigationView = findViewById(R.id.nav_view);

        navigationView.setNavigationItemSelectedListener(this);

        mAppBarConfiguration = new AppBarConfiguration.Builder(
                R.id.navigation_home, R.id.navigation_dashboard, R.id.navigation_plan, R.id.navigation_notifications)
                .setDrawerLayout(drawer)
                .build();

        NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
        NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
        NavigationUI.setupWithNavController(navigationView, navController);

我的导航抽屉菜单是

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    tools:showIn="navigation_view">

    <group android:checkableBehavior="single">
        <item
            android:id="@+id/nav_home"
            android:icon="@drawable/ic_menu_camera"
            android:title="@string/menu_home" />
        <item
            android:id="@+id/nav_gallery"
            android:icon="@drawable/ic_menu_gallery"
            android:title="@string/menu_gallery" />
        <item
            android:id="@+id/nav_slideshow"
            android:icon="@drawable/ic_menu_slideshow"
            android:title="@string/menu_slideshow" />
        <item
            android:id="@+id/nav_tools"
            android:icon="@drawable/ic_menu_manage"
            android:title="@string/menu_tools" />
    </group>

    <item android:title="Communicate">
        <menu>
            <item
                android:id="@+id/nav_share"
                android:icon="@drawable/ic_menu_share"
                android:title="@string/menu_share" />
            <item
                android:id="@+id/nav_send"
                android:icon="@drawable/ic_menu_send"
                android:title="@string/menu_send" />
        </menu>
    </item>

</menu>

最后：

@Override
    public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {

        int id = menuItem.getItemId();

        if (id == R.id.nav_share)
            Toast.makeText(LauncherActivity.this, "Click", Toast.LENGTH_SHORT).show();

        DrawerLayout drawer = findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);
        return true;
    }

我想要那个点击吐司……我看不到我错过了什么……

Answer 1

如果有人想要答案..我做了一些研究，终于找到了解决方案...希望它有所帮助....

NavigationView navigationView = findViewById(R.id.nav_view);
MenuItem shareItem = navigationView.getMenu().findItem(R.id.nav_share);
shareItem.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
     @Override
     public boolean onMenuItemClick(MenuItem item) {

     Toast.makeText(LauncherActivity.this, "click", Toast.LENGTH_SHORT).show();
     //do as you want with the button click

      DrawerLayout drawer = findViewById(R.id.drawer_layout);
      drawer.closeDrawer(GravityCompat.START);

      return true;
     }
 });

Answer 2

用这个

 NavigationView navigationView = findViewById(R.id.nav_view);
 navigationView.bringToFront()
 navigationView.setNavigationItemSelectedListener(this);

Answer 3

如果有人仍在寻找关于我们如何绑定导航目的地并处理单击导航抽屉菜单项的答案，请在此处回答： https://stackoverflow.com/a/57846680/3283350

Answer 4

我也遇到了你的问题并想出了解决方案

NavController navController = Navigation.findNavController(this, R.id.nav_host_home);
    NavigationUI.setupWithNavController(navigationView, navController);

    navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
        @Override
        public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
            int id = menuItem.getItemId();
            if (id == R.id.nav_share) {
                Toast.makeText(getApplicationContext(), "nav_share", Toast.LENGTH_SHORT).show();
            }
            NavigationUI.onNavDestinationSelected(menuItem, navController);
            drawerLayout.closeDrawer(Gravity.RIGHT);
            return true;
        }
    });