更改导航抽屉中菜单项的文本颜色

Question

navigationView = (NavigationView) findViewById(R.id.navigation_view);
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {

    // This method will trigger onItemClick of navigation menu
    @Override
    public boolean onNavigationItemSelected(MenuItem menuItem) {

        // Checking if the item is in checked state or not, if not make it in checked state
        if (menuItem.isChecked())
            menuItem.setChecked(false);
        else menuItem.setChecked(true);

        if (nightMode == 0) {
            SpannableString spanString = new SpannableString(menuItem.getTitle().toString());
            spanString.setSpan(new ForegroundColorSpan(Color.WHITE), 0, spanString.length(), 0); // fix the color to white
            menuItem.setTitle(spanString);
        }

    <?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <group
        android:checkableBehavior="single">
        <item
            android:id="@+id/unitone"
            android:checked="true"
            android:icon="@drawable/one_white"
            android:title="Classical Period" />
        <item
            android:id="@+id/unittwo"
            android:checked="false"
            android:icon="@drawable/two_white"
            android:title="Postclassical Period" />
        <item
            android:id="@+id/unitthree"
            android:checked="false"
            android:icon="@drawable/three_white"
            android:title="Early Modern Era" />
        <item
            android:id="@+id/unitfour"
            android:checked="false"
            android:icon="@drawable/four_white"
            android:title="Dawn of Industrial Age" />
        <item
            android:id="@+id/unitfive"
            android:checked="false"
            android:icon="@drawable/five_white"
            android:title="Modern Era" />
    </group>
</menu>

编辑：我使用的不是第三方库，而是支持库中提供的NavigationView。下面是XML布局：

<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/drawer"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:elevation="7dp"
    tools:context=".MainActivity"
    android:fitsSystemWindows="true" >

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <FrameLayout
            android:id="@+id/container"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@color/ColorDark" />

        <include layout="@layout/toolbar" />

    </FrameLayout>

    <android.support.design.widget.NavigationView
        android:id="@+id/navigation_view"
        android:background="#000"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        android:layout_gravity="start"
        app:headerLayout="@layout/header"
        app:menu="@menu/drawer" />

</android.support.v4.widget.DrawerLayout>

Answer 1

 <android.support.design.widget.NavigationView
        android:id="@+id/navigation_view"
        android:background="#000"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        android:layout_gravity="start"
        app:headerLayout="@layout/header"
        app:itemTextColor="your color"
        app:menu="@menu/drawer" />