Android - 暗模式问题 : black text on dark background

Question

当我启用暗模式时，我的应用程序上的某些菜单看起来很糟糕:非常暗背景上的黑色文本。我完全是色彩方面的初学者。

我还没有在 android studio 的默认颜色设置上碰过任何东西，所以我有默认的两个主题 XMLs 和 Color Xml:

     <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Base application theme. -->
     <style name="Theme.TestSS" 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" tools:targetApi="l">?attr/colorPrimaryVariant</item>
         <!-- Customize your theme here. -->
     </style>

     <style name="Theme.TestSS.NoActionBar">
          <item name="windowActionBar">false</item>
          <item name="windowNoTitle">true</item>
     </style>

     <style name="Theme.TestSS.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />

     <style name="Theme.TestSS.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
   </resources>

和:

    <resources xmlns:tools="http://schemas.android.com/tools">
    <!-- Base application theme. -->
     <style name="Theme.TestSS" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
         <!-- Primary brand color. -->
         <item name="colorPrimary">@color/purple_200</item>
         <item name="colorPrimaryVariant">@color/purple_700</item>
         <item name="colorOnPrimary">@color/black</item>
         <!-- Secondary brand color. -->
         <item name="colorSecondary">@color/teal_200</item>
         <item name="colorSecondaryVariant">@color/teal_200</item>
         <item name="colorOnSecondary">@color/black</item>
         <!-- Status bar color. -->
         <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
         <!-- Customize your theme here. -->
     </style>
    </resources>

颜色:

   <?xml version="1.0" encoding="utf-8"?>
     <resources>
      <color name="purple_200">#FFBB86FC</color>
      <color name="purple_500">#FF6200EE</color>
      <color name="purple_700">#FF3700B3</color>
      <color name="teal_200">#FF03DAC5</color>
      <color name="teal_700">#FF018786</color>
      <color name="black">#FF000000</color>
      <color name="white">#FFFFFFFF</color>
     </resources>

问题在哪里？我正在 Android R 上使用 AVD 进行测试，并在我的物理设备上使用 Android Q 进行测试。感谢您的帮助

Answer 1

转到您的 activity_main.xml 并将颜色保持为黑色的 TextView 的 textColor 属性设置为

android:textColor = "?android:textColorPrimary"

转到 res/values/themes/themes.xml (night) 并在 <!-- Customize your theme here. --> 下方添加以下代码:

<item name="android:textColorPrimary">@color/white</item>

转到 res/values/themes/themes.xml 并在 <!-- Customize your theme here. --> 下方添加以下代码:

<item name="android:textColorPrimary">@color/black</item>

运行您的应用程序并更改为暗模式。它会工作的。只需确保在 </style> 之前添加代码即可在themes.xml 和themes.xml (night) 文件中的结束标签