使用DrawerLayout完成滑动菜单的示例代码

<activity android:name=".drawerlayoutactivity"
      android:theme="@style/notitle"></activity>

<style name="notitle" parent="theme.appcompat.light.noactionbar">//隐藏原有导航栏
    //以下两条均为颜色的设置
    <item name="colorprimary">@color/colorprimary</item>
    <item name="colorprimarydark">@color/colorprimarydark</item>
  </style>

<?xml version="1.0" encoding="utf-8"?>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:layout_height="match_parent">
  <androidx.appcompat.widget.toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionbarsize"
    android:background="?attr/colorprimary"
    android:theme="@style/themeoverlay.appcompat.dark.actionbar"
    app:popuptheme="@style/themeoverlay.appcompat.light" />
  <imageview
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:src="@drawable/b" />
</linearlayout>

<?xml version="1.0" encoding="utf-8"?>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:background="?attr/colorprimary"
  android:padding="40dp">
  <de.hdodenhof.circleimageview.circleimageview//将图片圆形化的控件（design support库中提供）
    android:layout_width="80dp"
    android:layout_height="80dp"
    android:src="@drawable/cat"
    android:scaletype="centercrop"
    android:layout_gravity="center"/>
  <textview
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_margintop="20dp"
    android:text="你的小可爱"
    android:textsize="20sp"
    android:layout_gravity="center"/>
</linearlayout>

dependencies {
  implementation filetree(include: ['*.jar'], dir: 'libs')
  implementation 'androidx.appcompat:appcompat:1.2.0'
  implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
  implementation 'de.hdodenhof:circleimageview:2.1.0'//这是需要添加的
  testimplementation 'junit:junit:4.12'
  androidtestimplementation 'androidx.test.ext:junit:1.1.1'
  androidtestimplementation 'androidx.test.espresso:espressocore:3.2.0'
}

<?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="home" />
    <item
      android:id="@+id/nav_gallery"
      android:icon="@drawable/ic_menu_gallery"
      android:title="gallery" />
    <item
      android:id="@+id/nav_slideshow"
      android:icon="@drawable/ic_menu_slideshow"
      android:title="slideshow" />
    <item
      android:id="@+id/nav_tools"
      android:icon="@drawable/ic_menu_manage"
      android:title="tools" />
  </group>
</menu>

<?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"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  xmlns:tools="http://schemas.android.com/tools"
  android:id="@+id/drawer_layout"
  android:fitssystemwindows="true"
  tools:opendrawer="start">
  <include
    layout="@layout/important"//引入上面编好的important.xml文件
    android:layout_width="match_parent"
    android:layout_height="match_parent" />
  <com.google.android.material.navigation.navigationview
    android:id="@+id/nav_view"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:fitssystemwindows="true"
    app:headerlayout="@layout/left"//引入上面编好的left.xml文件
    app:menu="@menu/nav_menu">//引入上面编好的nav_menu.xml文件
  </com.google.android.material.navigation.navigationview>
</androidx.drawerlayout.widget.drawerlayout>

dependencies {
  implementation filetree(include: ['*.jar'], dir: 'libs')
  implementation 'androidx.appcompat:appcompat:1.2.0'
  implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
  implementation 'androidx.navigation:navigation-fragment:2.3.0'//这里是需要添加的
  implementation 'androidx.navigation:navigation-ui:2.3.0'//这里是需要添加的
  implementation 'de.hdodenhof:circleimageview:2.1.0'
  testimplementation 'junit:junit:4.12'
  androidtestimplementation 'androidx.test.ext:junit:1.1.1'
  androidtestimplementation 'androidx.test.espresso:espressocore:3.2.0'

import androidx.annotation.nonnull;
import androidx.appcompat.app.actionbar;
import androidx.appcompat.app.appcompatactivity;
import androidx.appcompat.widget.toolbar;
import androidx.core.view.gravitycompat;
import androidx.drawerlayout.widget.drawerlayout;

import android.os.bundle;
import android.view.menu;
import android.view.menuitem;
import android.widget.toast;

import com.google.android.material.navigation.navigationview;

public class drawerlayoutactivity extends appcompatactivity {
  private drawerlayout mdrawerlayout;
  private actionbar actionbar;
  @override
  protected void oncreate(bundle savedinstancestate) {
    super.oncreate(savedinstancestate);
    setcontentview(r.layout.activity_drawer_layout);
    mdrawerlayout=findviewbyid(r.id.drawer_layout);//得到drawerlayout实例
    navigationview navigationview=findviewbyid(r.id.nav_view);//获取到navigationview实例
    toolbar toolbar = findviewbyid(r.id.toolbar);//找到toobar控件
    setsupportactionbar(toolbar);//用setsupportactionbar方法将导航栏设置为我们自定义的toolbar   
    actionbar=getsupportactionbar();//用getsupportactionbar()方法实例化导航栏（这里的导航栏就是我们自定义的toolbar）
    if(actionbar!=null){
      actionbar.setdisplayhomeasupenabled(true);//让左上角的导航按钮显示出来
      actionbar.sethomeasupindicator(r.drawable.caidan);//设置导航按钮图标（图片是提前准备好的）
    }
    navigationview.setcheckeditem(r.id.nav_home);//调用navigationview的setcheckeditem方法将home菜单设置为默认选中
    navigationview.setnavigationitemselectedlistener(new navigationview.onnavigationitemselectedlistener() {//设置菜单选中事件的监听器
      @override
      public boolean onnavigationitemselected(@nonnull menuitem menuitem) {
        mdrawerlayout.closedrawers();//选中后关闭菜单
        return true;
      }
    });
  }
   @override
  public boolean onoptionsitemselected(@nonnull menuitem item) {//加入的导航按钮的点击事件
    switch (item.getitemid()){
      case android.r.id.home:
        mdrawerlayout.opendrawer(gravitycompat.start);//调用drawerlayout的opendrawer方法将菜单展示出来
        actionbar=null;
        break;
      default:
    }
    return true;
  }
 }