在 Android Studio 中使用抽屉菜单时出现问题 - 组标题未样式化

问题描述 投票：0回答：1

下面是使用 

drawer menu
的应用程序“SongTracker”菜单的问题。该应用程序以启动动画打开，然后到 
WelcomeActivity.java
，它作为启动所有功能的主要活动。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。这就是我目前所拥有的 - 组标题为“管理歌曲”，子菜单项为 添加新歌曲、编辑歌曲、打开歌曲、搜索歌曲

我希望使组标题脱颖而出，但无法找到当前发生此情况的文件/代码。这是

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

    <!-- Content View -->
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="visible"><!---->

        <!-- Large Welcome Text -->
        <TextView
            android:id="@+id/welcomeText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="32dp"
            android:gravity="center"
            android:text="Welcome [User Name]"
            android:textSize="24sp"
            android:textStyle="bold" /><!---->

        <!-- User Information -->
        <TextView
            android:id="@+id/userNameText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/welcomeText"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="16dp"
            android:text="User Name: "
            android:textSize="18sp" />

        <TextView
            android:id="@+id/userEmailText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/userNameText"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="16dp"
            android:text="Email: "
            android:textSize="18sp" />

        <TextView
            android:id="@+id/userIdText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/userEmailText"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="16dp"
            android:text="User ID: "
            android:textSize="18sp" />

    </RelativeLayout><!---->
    <!-- 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>


NavigationView
参考
app:headerLayout="@layout/nav_header"
和
app:menu="@menu/drawer_menu"
。这是这两个文件。 首先-
nav_header.xml

<?xml version="1.0" encoding="utf-8"?><!-- nav_header.xml -->

<RelativeLayout 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/nav_header"
    android:layout_width="match_parent"
    android:layout_height="160dp"
    >

    <!-- Your app's logo or an icon -->
    <ImageView
        android:id="@+id/nav_header_icon"
        android:layout_width="96dp"
        android:layout_height="96dp"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="24dp"
        android:src="@mipmap/ic_launcher" />

    <!-- A title or app name -->
    <TextView
        android:id="@+id/nav_header_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/nav_header_icon"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="8dp"
        android:text="SongTracker"
        android:textColor="#FFFFFF"
        android:textSize="18sp"
        android:textStyle="bold" />
</RelativeLayout>

和

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>


    <!-- Header: Manage Set Lists -->
    <item
        android:id="@+id/menu_item_manage_set_lists_header"
        android:title="Manage Set Lists"
        android:enabled="false"
        app:showAsAction="always">
        <menu>
            <group android:id="@+id/group_set_lists">
                <item
                    android:id="@+id/menu_item_create_set_list"
                    android:title="Create Set List"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_edit_set_list"
                    android:title="Edit Set List"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_open_set_list"
                    android:title="Open Set List"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_search_set_lists"
                    android:title="Search Set Lists"
                    android:onClick="onOptionsItemSelected" />
            </group>
        </menu>
    </item>

    <!-- Header: Manage Bands -->
    <item
        android:id="@+id/menu_item_manage_bands_header"
        android:title="Manage Bands"
        android:enabled="false"
        app:showAsAction="always">
        <menu>
            <group android:id="@+id/group_bands">
                <item
                    android:id="@+id/menu_item_create_new_band"
                    android:title="Create New Band"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_remove_band"
                    android:title="Remove Band"
                    android:onClick="onOptionsItemSelected" />
            </group>
        </menu>
    </item>

    <!-- Header: Manage Users -->
    <item
        android:id="@+id/menu_item_manage_users_header"
        android:title="Manage Users"
        android:enabled="false"
        app:showAsAction="always">
        <menu>
            <group android:id="@+id/group_users">
                <item
                    android:id="@+id/menu_item_add_user"
                    android:title="Add User"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_delete_user"
                    android:title="Delete User"
                    android:onClick="onOptionsItemSelected" />
            </group>
        </menu>
    </item>

    <!-- Header: Data Management -->
    <item
        android:id="@+id/menu_item_data_management_header"
        android:title="Data Management"
        android:enabled="false"
        app:showAsAction="always">
        <menu>
            <group android:id="@+id/group_data_management">
                <item
                    android:id="@+id/menu_item_user_analytics"
                    android:title="User Analytics"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_export_data"
                    android:title="Export Data"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_import_data"
                    android:title="Import Data"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_backup_data"
                    android:title="Backup Data"
                    android:onClick="onOptionsItemSelected" />
            </group>
        </menu>
    </item>

    <!-- Header: Settings -->
    <item
        android:id="@+id/menu_item_settings_header"
        android:title="Settings"
        android:enabled="false"
        app:showAsAction="always">
        <menu>
            <group android:id="@+id/group_settings">
                <item
                    android:id="@+id/menu_item_app_settings"
                    android:title="App Settings"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_account_settings"
                    android:title="Account Settings"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_theme"
                    android:title="Theme"
                    android:onClick="onOptionsItemSelected" />
            </group>
        </menu>
    </item>

    <!-- Header: Help & Feedback -->
    <item
        android:id="@+id/menu_item_help_feedback_header"
        android:title="Help \&amp; Feedback"
        android:enabled="false"
        app:showAsAction="always">
        <menu>
            <group android:id="@+id/group_help_feedback">
                <item
                    android:id="@+id/menu_item_faq"
                    android:title="FAQ"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_send_feedback"
                    android:title="Send Feedback"
                    android:onClick="onOptionsItemSelected" />
            </group>
        </menu>
    </item>

    <!-- Header: About -->
    <item
        android:id="@+id/menu_item_about_header"
        android:title="About"
        android:enabled="false"
        app:showAsAction="always">
        <menu>
            <group android:id="@+id/group_about">
                <item
                    android:id="@+id/menu_item_app_information"
                    android:title="App Information"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_credits"
                    android:title="Credits"
                    android:onClick="onOptionsItemSelected" />
                <item
                    android:id="@+id/menu_item_exit"
                    android:title="Exit"
                    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>

在问这个问题之前，我已经进行了搜索，但没有找到任何可以解决我的问题的内容。当我输入此查询时，上面的“类似问题”文本框中列出了 2 个与此查询无关的问题。

java android xml menu android-drawer
1个回答
0
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 onCreateOptionsMenu(Menu menu) {
    int id = item.getItemId();
    switch(id){ 
    case R.id.search:
   //action
    break;
    }
    return true;
    }
    }
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