Apply theme to grid selector time picker

app/src/main/java/com/philliphsu/clock2/aospdatetimepicker/Utils.java

@@ -280,7 +280,7 @@ public class Utils {
      * @return true if dark mode, false if light.
      */
     public static boolean isDarkTheme(Context context, boolean current) {
-        return resolveBoolean(context, R.attr.theme_dark, current);
+        return resolveBoolean(context, R.attr.themeDark, current);
     }
 
     /**

app/src/main/java/com/philliphsu/clock2/editalarm/NumberGridTimePickerDialog.java

@@ -70,6 +70,7 @@ public class NumberGridTimePickerDialog extends BaseTimePickerDialog implements
     private static final String KEY_IN_KB_MODE = "in_kb_mode";
     private static final String KEY_TYPED_TIMES = "typed_times";
     private static final String KEY_DARK_THEME = "dark_theme";
+    private static final String KEY_THEME_SET_AT_RUNTIME = "theme_set_at_runtime";
 
     public static final int HOUR_INDEX = 0;
     public static final int MINUTE_INDEX = 1;
@@ -112,6 +113,7 @@ public class NumberGridTimePickerDialog extends BaseTimePickerDialog implements
     private int mInitialMinute;
     private boolean mIs24HourMode;
     private boolean mThemeDark;
+    private boolean mThemeSetAtRuntime;
 
     // For hardware IME input.
     private char mPlaceholderText;
@@ -243,6 +245,7 @@ public class NumberGridTimePickerDialog extends BaseTimePickerDialog implements
         mIs24HourMode = is24HourMode;
         mInKbMode = false;
         mThemeDark = false;
+        mThemeSetAtRuntime = false;
     }
 
     /**
@@ -250,6 +253,7 @@ public class NumberGridTimePickerDialog extends BaseTimePickerDialog implements
      */
     public void setThemeDark(boolean dark) {
         mThemeDark = dark;
+        mThemeSetAtRuntime = true;
     }
 
     public boolean isThemeDark() {
@@ -278,6 +282,7 @@ public class NumberGridTimePickerDialog extends BaseTimePickerDialog implements
             mIs24HourMode = savedInstanceState.getBoolean(KEY_IS_24_HOUR_VIEW);
             mInKbMode = savedInstanceState.getBoolean(KEY_IN_KB_MODE);
             mThemeDark = savedInstanceState.getBoolean(KEY_DARK_THEME);
+            mThemeSetAtRuntime = savedInstanceState.getBoolean(KEY_THEME_SET_AT_RUNTIME);
         }
     }
 
@@ -292,6 +297,10 @@ public class NumberGridTimePickerDialog extends BaseTimePickerDialog implements
 
         View view = super.onCreateView(inflater, container, savedInstanceState);
 
+        if (!mThemeSetAtRuntime) {
+            mThemeDark = Utils.isDarkTheme(getActivity(), mThemeDark);
+        }
+
         Resources res = getResources();
         mHourPickerDescription = res.getString(R.string.hour_picker_description);
         mSelectHours = res.getString(R.string.select_hours);
@@ -575,6 +584,7 @@ public class NumberGridTimePickerDialog extends BaseTimePickerDialog implements
                 outState.putIntegerArrayList(KEY_TYPED_TIMES, mTypedTimes);
             }
             outState.putBoolean(KEY_DARK_THEME, mThemeDark);
+            outState.putBoolean(KEY_THEME_SET_AT_RUNTIME, mThemeSetAtRuntime);
         }
     }
 

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

@@ -15,7 +15,7 @@
 -->
 
 <resources xmlns:android="http://schemas.android.com/apk/res/android">
-    <attr name="theme_dark" format="boolean">false</attr>
+    <attr name="themeDark" format="boolean">false</attr>
 
     <style name="time_label">
         <item name="android:textSize">@dimen/time_label_size</item>

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

@@ -19,6 +19,8 @@
         <item name="themedIconTint">@color/icon_color_active_light</item>
         <item name="android:textColorHint">@color/text_color_disabled_light</item>
         <item name="themedPopupOverlay">@style/ThemeOverlay.AppCompat.Light</item>
+        <!-- For BottomSheetTimePickers -->
+        <item name="themeDark">false</item>
     </style>
 
     <style name="AppTheme.Dark" parent="Theme.AppCompat.NoActionBar">
@@ -40,6 +42,8 @@
         <item name="themedIconTint">@color/icon_color_active_dark</item>
         <item name="android:textColorHint">@color/text_color_disabled_dark</item>
         <item name="themedPopupOverlay">@style/ThemeOverlay.AppCompat.Dark</item>
+        <!-- For BottomSheetTimePickers -->
+        <item name="themeDark">true</item>
     </style>
 
     <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar"/>