[Android]DrawerLayout滑动菜单+NavigationView

<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/drawerLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">
    <FrameLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
            <androidx.appcompat.widget.Toolbar
                android:id="@+id/toolbar1"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"//高度设置为actionBar的高度
                android:background="?attr/colorPrimary"//背景颜色设置为colorPrimary
                android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light"//单独将弹出的菜单项指定为浅色主题
              />
    />
   <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="This is menu"
        android:layout_gravity="start"
        android:background="#fff"
        android:textSize="30sp"/>
</androidx.drawerlayout.widget.DrawerLayout>

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        setSupportActionBar(toolbar)
        supportActionBar?.let {
            it.setHomeAsUpIndicator(R.drawable.is_menu)//设置一个导航按钮图标
           it.setDisplayHomeAsUpEnabled(true)//让导航按钮显示出来
        }
   }
    override fun onCreateOptionsMenu(menu: Menu): Boolean {
        menuInflater.inflate(R.menu.toolbar,menu)
        return true
    }
    override fun onOptionsItemSelected(item: MenuItem): Boolean {
        when(item.itemId){
            android.R.id.home->{
                var drawerLayout:DrawerLayout=findViewById(R.id.drawerLayout)
                drawerLayout.openDrawer(GravityCompat.START)//将滑动菜单展现初来
            }
            ... 
        }
        return true
    }
}

implementation 'com.google.android.material:material:1.7.0'
    implementation 'de.hdodenhof:circleimageview:3.0.1'

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <group android:checkableBehavior="single">//single表示组中的所有菜单项只能单选
        <item
            android:id="@+id/navCall"
            android:title="Call"
            android:icon="@drawable/nav_call"/>
        <item
            android:id="@+id/navFriends"
            android:title="Friend"
            android:icon="@drawable/is_friends"/>
        <item
            android:id="@+id/navLocation"
            android:title="Location"
            android:icon="@drawable/is_location"/>
        <item
            android:id="@+id/navMail"
            android:title="Main"
            android:icon="@drawable/nav_mail"/>
        <item
            android:id="@+id/navTask"
            android:icon="@drawable/nav_tasks"
            android:title="Tasks"/>
    </group>
</menu>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="180dp"
    android:padding="10dp"
    android:background="@color/purple_500">
    <de.hdodenhof.circleimageview.CircleImageView//将图片圆形化
        android:id="@+id/iconImage"
        android:layout_width="70dp"
        android:layout_height="70dp"
        android:src="@drawable/img"
        android:layout_centerInParent="true"/>
    <TextView
        android:id="@+id/mailText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:text="1111111111@qq.com"
        android:textColor="#FFF"
        android:textSize="14sp"/>
    <TextView
        android:id="@+id/userText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/mailText"
        android:text="TT"
        android:textColor="#FFF"
        android:textSize="14sp"/>
</RelativeLayout>

<com.google.android.material.navigation.NavigationView
        android:id="@+id/navView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        app:menu="@menu/nav_menu"//显示具体的菜单项
        app:headerLayout="@layout/nav_header"//显示头部布局
/>

navView.setCheckedItem(R.id.navCall)//将Call菜单项设置为默认选中
navView.setNavigationItemSelectedListener {//设置一个菜单项选中事件的监听器
            drawerLayout.closeDrawers()//将滑动菜单关闭
            true//表示此事件已被处理
}