优化阅读界面导航栏颜色

app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt

@@ -146,8 +146,10 @@ abstract class ReadBookBaseActivity :
         when {
             binding.readMenu.isVisible -> ATH.setNavigationBarColorAuto(this)
             bottomDialog > 0 -> ATH.setNavigationBarColorAuto(this, bottomBackground)
-            else -> {
+            else -> if (AppConfig.isTransparentStatusBar) {
                 ATH.setNavigationBarColorAuto(this, Color.TRANSPARENT)
+            } else {
+                ATH.setNavigationBarColorAuto(this, Color.parseColor("#20000000"))
             }
         }
     }

app/src/main/res/values-night/colors.xml

@@ -12,6 +12,7 @@
     <color name="night_mask">#69000000</color>
 
     <color name="transparent10">#10ffffff</color>
+    <color name="transparent20">#20ffffff</color>
     <color name="transparent30">#30ffffff</color>
     <color name="transparent50">#50ffffff</color>
 

app/src/main/res/values/colors.xml

@@ -19,6 +19,7 @@
     <color name="transparent">#00000000</color>
 
     <color name="transparent10">#10000000</color>
+    <color name="transparent20">#20000000</color>
     <color name="transparent30">#30000000</color>
     <color name="transparent50">#50000000</color>
 

app/src/main/res/values/styles.xml

@@ -33,6 +33,8 @@
         <item name="android:popupMenuStyle">@style/Style.PopupMenu</item>
         <item name="android:statusBarColor">@color/transparent</item>
         <item name="android:windowDrawsSystemBarBackgrounds">true</item>
+        <item name="android:enforceStatusBarContrast" tools:ignore="NewApi">false</item>
+        <item name="android:enforceNavigationBarContrast" tools:ignore="NewApi">false</item>
     </style>
 
     <style name="AppTheme.AppBarOverlay.Light" parent="ThemeOverlay.AppCompat.Light">