XML布局
主xml
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:orientation="vertical"
>
<androidx.appcompat.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?actionBarSize"
android:background="@color/colorPrimary"
style="@style/ThemeOverlay.MaterialComponents.ActionBar"
android:id="@+id/m_toolbar"/>
<androidx.drawerlayout.widget.DrawerLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/m_drawer">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
</LinearLayout>
<com.google.android.material.navigation.NavigationView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/m_nav"
android:layout_gravity="start"
app:menu="@menu/menu_nav"
/>
</androidx.drawerlayout.widget.DrawerLayout>
</LinearLayout>
NavigationView中 android:layout_gravity=“start” 表明是左滑
NavigationView必须是第二个
更改Style
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
改为
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
因为用Toolbar替换了原来的所以要把原来的去掉
menu布局
新建menu文件夹,并在其新建menu_nav.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/item_nav_1" android:title="aaa"/>
<item android:id="@+id/item_nav_2" android:title="bbb"/>
<item android:id="@+id/item_nav_3" android:title="ccc"/>
<item android:id="@+id/item_nav_4" android:title="ddd"/>
</menu>
Activity 代码
package com.aaa_xcdq.fsix;
import androidx.annotation.NonNull;
import androidx.appcompat.app.ActionBarDrawerToggle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.core.view.GravityCompat;
import androidx.drawerlayout.widget.DrawerLayout;
import androidx.viewpager.widget.ViewPager;
import android.os.Bundle;
import android.view.MenuItem;
import com.google.android.material.navigation.NavigationView;
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private DrawerLayout drawerLayout;
private Toolbar toolbar;
private NavigationView navigationView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initview();
}
private void initview() {
drawerLayout=findViewById(R.id.m_drawer);
toolbar=findViewById(R.id.m_toolbar);
navigationView=findViewById(R.id.m_nav);
//把toolbar替代ActionBar并把右上角的图标显示
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawerLayout,
toolbar, 0, 0);
drawerLayout.addDrawerListener(toggle);
toggle.syncState();
//设置item的点击事件,
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
switch (menuItem.getItemId()){
case R.id.item_nav_4:
finish();
break;
}
//关闭drawerLayout
drawerLayout.closeDrawer(GravityCompat.START);
return true;
}
}