Android首选项屏幕主题不起作用

Question

我正在我的应用程序中设置一个带有导航架构组件的 Androidx 首选项屏幕。出于某种原因，Android 首选项屏幕看起来像这样

当我从 Android Studio 主题切换器切换主题时，它看起来非常好。

这是我的 Preference XML 布局代码

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:key="application_settings"
app:singleLineTitle="true">

<PreferenceCategory
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:iconSpaceReserved="false"
    app:singleLineTitle="true"
    app:title="@string/display_language_header">

    <ListPreference
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:entries="@array/Languages"
        app:entryValues="@array/Languages_Values"
        app:icon="@drawable/ic_language"
        app:key="application_language"
        app:singleLineTitle="true"
        app:summary="@string/default_application_language"
        app:title="@string/application_settings_language" />

</PreferenceCategory>

<PreferenceCategory
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    app:iconSpaceReserved="false"
    app:singleLineTitle="true"
    app:title="@string/normal_settings_title">

    <SwitchPreferenceCompat
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        app:icon="@drawable/ic_sound"
        app:key="sound_setting"
        app:singleLineTitle="true"
        app:summary="@string/sound_settings_summary"
        app:title="@string/sound_settings_title" />

    <SwitchPreferenceCompat
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:summary="@string/vibration_settings_summary"
        android:title="@string/vibration_settings_title"
        app:icon="@drawable/ic_vibrate"
        app:key="vibration_setting"
        app:singleLineTitle="true" />

    <SwitchPreferenceCompat
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:summary="@string/auto_copy_to_clip_board_settings_summary"
        android:title="@string/auto_copy_to_clipboard_settings_title"
        app:icon="@drawable/ic_copy"
        app:key="copy_to_clip_board_setting"
        app:singleLineTitle="true" />

    <SwitchPreferenceCompat
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:summary="@string/auto_web_search_settings_summary"
        android:title="@string/auto_web_search_settings_title"
        app:icon="@drawable/ic_search"
        app:key="auto_web_search_setting"
        app:singleLineTitle="true" />

    <SwitchPreferenceCompat
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:summary="@string/save_history_settings_summary"
        android:title="@string/save_history_settings_title"
        app:icon="@drawable/ic_save"
        app:key="save_history_setting"
        app:singleLineTitle="true" />
</PreferenceCategory>


<PreferenceCategory
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    app:iconSpaceReserved="false"
    app:singleLineTitle="true"
    app:title="@string/application_settings_title">

    <Preference
        android:id="@+id/privacy_policy"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:key="privacy_policy"
        android:summary="@string/privacy_policy_settings_summary"
        android:title="@string/privacy_policy_settings_title"
        app:singleLineTitle="true" />


    <Preference
        android:id="@+id/share_with_friends"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:key="share_with_friends"
        android:summary="@string/share_with_friends_summary"
        android:title="@string/share_with_friends_title"
        app:singleLineTitle="true" />


    <Preference
        android:id="@+id/rate_us"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:key="rate_us"
        android:summary="@string/rate_us_summary"
        android:title="@string/rate_us_summary"
        app:singleLineTitle="true" />

    <Preference
        android:id="@+id/delete_history"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:key="delete_history"
        android:summary="@string/delete_history_summary"
        android:title="@string/delete_history_title"
        app:singleLineTitle="true" />


</PreferenceCategory>

我的应用风格

<style name="AppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorAccent">@color/colorAccent</item>
    <item name="android:colorSecondary">@color/colorPrimary</item>
    <item name="fontFamily">@font/regular</item>
    <item name="android:orientation">vertical</item>
</style>

我试图给偏好屏幕硬编码主题，如 android:theme="@style/AppTheme" 但它也不起作用。我正在使用导航控制器通过底部应用程序栏调用 Preference Fragment。请帮助我了解我做错了什么？

Answer 1

我找到了解决此答案的方法。我在 Android Manifest 中有 android:orientation，这导致 Preference 屏幕采用垂直方向而不是水平方向。现在它看起来像一个普通的偏好屏幕。