所谓滑动菜单,就是将一些菜单选项隐藏起来,不放在主屏幕上,可以通过滑动的方式将菜单显示出来。这样做既节省了屏幕空间,又实现了非常好的动画效果。
该文章是基于:安卓Toolbar的使用demo—自定义标题栏
(1)效果展示
(2)实现过程
1.引入两个库,并sync
//material库
implementation 'com.google.android.material:material:1.0.0'
//开源项目CircleImageView。轻松实现图片圆形化
implementation 'de.hdodenhof:circleimageview:3.0.1'
2.在menu文件夹里新建Menu resource file-------nav_menu.xml
<?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/navCall"
android:icon="@drawable/call"
android:title="@string/call"
/>
<item android:id="@+id/navFriends"
android:icon="@drawable/user"
android:title="@string/friend"
/>
<item android:id="@+id/navLocation"
android:icon="@drawable/location"
android:title="@string/address"
/>
<item android:id="@+id/nav_email"
android:icon="@drawable/email"
android:title="@string/email"
/>
<item android:id="@+id/navTask"
android:icon="@drawable/task"
android:title="@string/task"
/>
</group>
</menu>
3.在layout文件夹新建Layout resource file-----nav_header.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:background="#2E2727"
android:layout_width="match_parent"
android:padding="10dp"
android:layout_height="180dp">
<de.hdodenhof.circleimageview.CircleImageView
android:id="@+id/iconImage"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/nav_icon"
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="945750312@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="laomi"
android:textColor="#fff"
android:textSize="14sp"/>
</RelativeLayout>
4.修改activity_main.xml
<?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/toolbar"
android:background="#D18484"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</FrameLayout>
<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"
app:headerLayout="@layout/nav_header"/>
</androidx.drawerlayout.widget.DrawerLayout>
5.修改MainActivity.java
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 MainActivity extends AppCompatActivity {
private DrawerLayout mDrawerLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar=findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mDrawerLayout=findViewById(R.id.drawerLayout);
NavigationView navigationView=findViewById(R.id.navView);
ActionBar actionBar=getSupportActionBar();
if (actionBar!=null){
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeAsUpIndicator(R.drawable.menu);
}
// navigationView.setCheckedItem(R.id.navCall);//默认选中
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
switch (menuItem.getItemId()){
case R.id.navCall:
Toast.makeText(MainActivity.this,"电话",Toast.LENGTH_SHORT).show();
break;
case R.id.navFriends:
Toast.makeText(MainActivity.this,"朋友",Toast.LENGTH_SHORT).show();
break;
case R.id.navLocation:
Toast.makeText(MainActivity.this,"地址",Toast.LENGTH_SHORT).show();
break;
case R.id.nav_email:
Toast.makeText(MainActivity.this,"邮箱",Toast.LENGTH_SHORT).show();
break;
case R.id.navTask:
Toast.makeText(MainActivity.this,"任务",Toast.LENGTH_SHORT).show();
break;
}
mDrawerLayout.closeDrawers();
return true;
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.toolbar,menu);
return true;
}
@Override
public boolean onOptionsItemSelected(@NonNull MenuItem item) {
switch (item.getItemId()){
case R.id.backup:
Toast.makeText(this,"备份",Toast.LENGTH_SHORT).show();
break;
case R.id.delete:
Toast.makeText(this,"删除",Toast.LENGTH_SHORT).show();
break;
case R.id.settings:
Toast.makeText(this,"设置",Toast.LENGTH_SHORT).show();
break;
case R.id.back:
Toast.makeText(this,"返回",Toast.LENGTH_SHORT).show();
break;
case android.R.id.home:
mDrawerLayout.openDrawer(GravityCompat.START);
break;
}
return true;
}
}