Calculate toolbar text contrast

app/src/main/java/org/tasks/themes/ThemeCache.java

@@ -64,12 +64,12 @@ public class ThemeCache {
       Resources.Theme theme = new ContextThemeWrapper(context, ThemeColor.COLORS[i]).getTheme();
       colors.add(
           new ThemeColor(
+              context,
               colorNames[i],
               i,
               resolveAttribute(theme, R.attr.colorPrimary),
               resolveAttribute(theme, R.attr.colorPrimaryVariant),
-              resolveAttribute(theme, R.attr.colorOnPrimary),
+              resolveAttribute(theme, R.attr.colorOnPrimary)));
-              resolveBoolean(theme, R.attr.dark_status_bar)));
     }
     String[] accentNames = resources.getStringArray(R.array.accents);
     for (int i = 0; i < ThemeAccent.ACCENTS.length; i++) {
@@ -88,12 +88,12 @@ public class ThemeCache {
     }
     untaggedColor =
         new ThemeColor(
+            context,
             null,
             19,
             getColor(context, R.color.tag_color_none_background),
             0,
-            getColor(context, R.color.black_87),
+            getColor(context, R.color.black_87));
-            false);
   }
 
   private static int resolveAttribute(Resources.Theme theme, int attribute) {
@@ -122,12 +122,6 @@ public class ThemeCache {
     return untaggedColor;
   }
 
-  private boolean resolveBoolean(Resources.Theme theme, int attribute) {
-    TypedValue typedValue = new TypedValue();
-    theme.resolveAttribute(attribute, typedValue, false);
-    return typedValue.data != 0;
-  }
-
   public List<ThemeAccent> getAccents() {
     return copyOf(accents);
   }

app/src/main/java/org/tasks/themes/ThemeColor.java

@@ -6,6 +6,7 @@ import static com.todoroo.andlib.utility.AndroidUtilities.atLeastOreo;
 
 import android.app.Activity;
 import android.app.ActivityManager;
+import android.content.Context;
 import android.content.res.Resources;
 import android.os.Build.VERSION_CODES;
 import android.os.Parcel;
@@ -13,6 +14,7 @@ import android.os.Parcelable;
 import android.view.View;
 import androidx.annotation.RequiresApi;
 import androidx.appcompat.widget.Toolbar;
+import androidx.core.graphics.ColorUtils;
 import androidx.drawerlayout.widget.DrawerLayout;
 import org.tasks.R;
 import org.tasks.dialogs.ColorPickerDialog;
@@ -114,19 +116,22 @@ public class ThemeColor implements ColorPickerDialog.Pickable {
   private final boolean isDark;
 
   public ThemeColor(
+      Context context,
       String name,
       int index,
       int colorPrimary,
       int colorPrimaryVariant,
-      int actionBarTint,
+      int actionBarTint) {
-      boolean isDark) {
     this.name = name;
     this.index = index;
     this.actionBarTint = actionBarTint;
     this.style = COLORS[index];
     this.colorPrimary = colorPrimary;
     this.colorPrimaryVariant = colorPrimaryVariant;
-    this.isDark = isDark;
+    double contrast =
+        ColorUtils.calculateContrast(
+            context.getResources().getColor(R.color.white_100), colorPrimary);
+    this.isDark = contrast < 3;
   }
 
   private ThemeColor(Parcel source) {

app/src/main/res/layout/control_set_repeat_display.xml

@@ -42,7 +42,7 @@
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:background="@null"
-      android:textColor="?attr/colorPrimary"/>
+      android:textColor="@color/text_primary"/>
 
   </LinearLayout>
 

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

@@ -7,7 +7,6 @@
 
   <!-- theme attributes -->
   <attr format="reference" name="overlay_theme"/>
-  <attr format="boolean" name="dark_status_bar"/>
   <attr format="dimension" name="card_elevation"/>
   <attr format="integer" name="horizontal_divider"/>
   <attr format="color" name="colorOnPrimaryHint"/>

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

@@ -27,7 +27,6 @@
   </style>
 
   <style name="WhiteToolbarTheme">
-    <item name="dark_status_bar">false</item>
     <item name="overlay_theme">@style/WhiteToolbarOverlay</item>
     <item name="colorOnPrimary">@color/white_100</item>
     <item name="colorOnPrimaryHint">@color/white_70</item>
@@ -35,7 +34,6 @@
   </style>
 
   <style name="BlackToolbarTheme">
-    <item name="dark_status_bar">true</item>
     <item name="overlay_theme">@style/BlackToolbarOverlay</item>
     <item name="colorOnPrimary">@color/black_87</item>
     <item name="colorOnPrimaryHint">@color/black_54</item>