#1308 checkbox color in high contrast theme

Author: ukanth

app/src/main/java/dev/ukanth/ufirewall/util/AppListArrayAdapter.java

@@ -40,9 +40,12 @@
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.Locale;
+import android.graphics.Color;
 import android.graphics.PorterDuff;
 import android.graphics.drawable.Drawable;
+import android.content.res.ColorStateList;
 import androidx.core.content.ContextCompat;
+import androidx.core.widget.CompoundButtonCompat;
 
 public class AppListArrayAdapter extends ArrayAdapter<PackageInfoData> {
 
@@ -220,6 +223,9 @@ public View getView(final int position, View convertView, ViewGroup parent) {
             holder.box_tor = addSupport(holder.box_tor, holder.app, 3);
         }
 
+        // Apply high contrast checkbox tinting for e-paper displays
+        applyHighContrastCheckboxTint(holder);
+
         setupExpandableView(holder, convertView, position);
         addEventListenter(holder);
 
@@ -618,6 +624,40 @@ private CheckBox removeSupport(View convertView, int id) {
         return check;
     }
 
+    /**
+     * Apply high contrast checkbox tinting for e-paper displays
+     */
+    private void applyHighContrastCheckboxTint(AppStateHolder holder) {
+        if (!"LHC".equals(G.getSelectedTheme())) {
+            return;
+        }
+
+        // Pure black color for maximum contrast on e-paper
+        ColorStateList colorStateList = ColorStateList.valueOf(Color.BLACK);
+
+        if (holder.box_wifi != null) {
+            CompoundButtonCompat.setButtonTintList(holder.box_wifi, colorStateList);
+        }
+        if (holder.box_3g != null) {
+            CompoundButtonCompat.setButtonTintList(holder.box_3g, colorStateList);
+        }
+        if (holder.box_roam != null) {
+            CompoundButtonCompat.setButtonTintList(holder.box_roam, colorStateList);
+        }
+        if (holder.box_vpn != null) {
+            CompoundButtonCompat.setButtonTintList(holder.box_vpn, colorStateList);
+        }
+        if (holder.box_tether != null) {
+            CompoundButtonCompat.setButtonTintList(holder.box_tether, colorStateList);
+        }
+        if (holder.box_lan != null) {
+            CompoundButtonCompat.setButtonTintList(holder.box_lan, colorStateList);
+        }
+        if (holder.box_tor != null) {
+            CompoundButtonCompat.setButtonTintList(holder.box_tor, colorStateList);
+        }
+    }
+
 
     static class AppStateHolder {
         private CheckBox box_lan;

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

@@ -49,8 +49,22 @@
         <item name="android:textColorPrimary">@color/black</item>
         <item name="android:textColorSecondary">@color/black</item>
 
+        <!-- Checkbox colors - pure black for maximum contrast -->
         <item name="colorControlNormal">@color/black</item>
+        <item name="colorControlActivated">@color/black</item>
+        <item name="colorControlHighlight">@color/black</item>
+        <item name="android:colorControlNormal">@color/black</item>
+        <item name="android:colorControlActivated">@color/black</item>
         <item name="tint">@color/black</item>
+
+        <!-- Explicit checkbox style -->
+        <item name="checkboxStyle">@style/HighContrastCheckBox</item>
+    </style>
+
+    <!-- High contrast checkbox style for e-paper displays -->
+    <style name="HighContrastCheckBox" parent="Widget.AppCompat.CompoundButton.CheckBox">
+        <item name="android:buttonTint">@color/black</item>
+        <item name="buttonTint">@color/black</item>
     </style>
 
     <!-- Dark style for all standard Locale and Locale plug-in Activity instances -->