如何在 Android Studio 中设置抽屉菜单选项的样式 - 组标题未样式化

问题描述 投票:0回答:1

[已于 2023 年 10 月 5 日编辑以澄清查询]

我有一个

drawer menu
- 从左侧滑动屏幕,就会出现一个菜单标题列表,每个菜单标题下面都有 3-5 个子菜单项。向左滑动
activity_welcome.xml
打开抽屉菜单。该菜单由不可点击的标题组成,每个标题都有一个可点击的子菜单项。我无法让主要标题项目脱颖而出 - 例如不同的背景颜色、不同的字体大小和不同的字体颜色。举个简单的例子,以组标题“管理歌曲”和子菜单项为添加新歌曲编辑歌曲打开歌曲搜索歌曲

我希望使组标题“管理歌曲”脱颖而出,但无法找到当前发生此情况的文件/代码。这是

DrawerLayout

<?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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/drawer_layout"
    tools:openDrawer="start">
    
    ...

    <!-- Navigation Drawer -->
    <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/nav_header"
        app:menu="@menu/drawer_menu"
         />
</androidx.drawerlayout.widget.DrawerLayout>

这是我的

drawer_menu.xml

<menu xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <!-- Header: Manage Songs -->
    <item
        android:id="@+id/menu_item_manage_songs_header"
        android:title="Manage Songs"
        android:enabled="false"
        app:showAsAction="always"
        app:actionLayout="@menu/drawer_group_header"
        android:background="@color/light_orange"
        android:textSize="18sp"
        android:textStyle="bold"
        android:textColor="@android:color/white" >
        <menu>
            <group android:id="@+id/group_songs">
                <item
                    android:id="@+id/menu_item_add_new_song"
                    android:title="Add New Song"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_edit_songs"
                    android:title="Edit Songs"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_open_song"
                    android:title="Open Song"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_search_songs"
                    android:title="Search Songs"
                    android:onClick="onOptionsItemSelected" />
            </group>
        </menu>
    </item>

    ...

</menu>

为了完整起见,我还将包括

themes.xml

<resources xmlns:tools="http://schemas.android.com/tools">
    <!-- Base application theme. -->
    <style name="Theme.SongTracker" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
        <!-- Primary brand color. -->
        <item name="colorPrimary">@color/purple_500</item>
        <item name="colorPrimaryVariant">@color/purple_700</item>
        <item name="colorOnPrimary">@color/white</item>
        <!-- Secondary brand color. -->
        <item name="colorSecondary">@color/teal_200</item>
        <item name="colorSecondaryVariant">@color/teal_700</item>
        <item name="colorOnSecondary">@color/black</item>
        <!-- Status bar color. -->
        <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
        <!-- Customize your theme here. -->
    </style>
    <style name="SplashTheme" parent="Theme.AppCompat.NoActionBar">
        <item name="android:windowBackground">@drawable/splash_background</item>
    </style>
    <style name="BackgroundLightGray" parent="Theme.AppCompat.NoActionBar">
        <item name="android:windowBackground">@drawable/light_gray</item>
    </style>
    <style name="OrangeTheme" parent="Theme.AppCompat.NoActionBar">
        <item name="android:windowBackground">@drawable/orange</item>
    </style>
</resources>

...和

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/Theme.SongTracker"
        tools:targetApi="31">
        <activity
            android:name=".addnewsong.AddNewSongActivity"
            android:exported="false"
            android:theme="@style/OrangeTheme"/>
        <activity
            android:name=".SplashActivity"
            android:exported="true"
            android:theme="@style/BackgroundLightGray">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".WelcomeActivity"
            android:exported="false"
            android:label="Welcome"
            android:theme="@style/OrangeTheme" />
        <activity
            android:name=".AddUserActivity"
            android:exported="false"
            android:label="Add User"
            android:screenOrientation="fullSensor"
            android:theme="@style/OrangeTheme" />
        <activity
            android:name=".MainActivity"
            android:exported="false">
        </activity>
    </application>

</manifest>

提前谢谢您 - 这看起来很简单。

java android xml menu android-drawer
1个回答
1
投票

这个问题不是很好理解,但要对每个菜单项执行操作,您需要实现一个侦听器。

public class MainActivity extends AppCompatActivity implements  NavigationView.OnNavigationItemSelectedListener{

    @Override
    protected void onCreate(Bundle 
    savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity);
    }
  
    @Override
    public boolean onNavigationItemSelected(@NonNull MenuItem item) {
   
    int id = item.getItemId();
    switch(id){ 
    case R.id.search:
   //action
    break;
    }
    return true;
    }
    }
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