Tag color fix

app/src/main/java/com/hippo/ehviewer/ui/CommonOperations.java

@@ -18,7 +18,11 @@ package com.hippo.ehviewer.ui;
 
 import android.app.Activity;
 import android.content.Intent;
+import android.content.res.Resources;
+import android.content.res.TypedArray;
 
+import androidx.annotation.AttrRes;
+import androidx.annotation.ColorInt;
 import androidx.core.content.ContextCompat;
 
 import com.hippo.app.ListCheckBoxDialogBuilder;
@@ -267,4 +271,12 @@ public final class CommonOperations {
             delegate.onCancel();
         }
     }
+
+    public static @ColorInt
+    int resolveColor(Resources.Theme theme, @AttrRes int attrId) {
+        TypedArray a = theme.obtainStyledAttributes(new int[]{attrId});
+        int res = a.getColor(0, 0);
+        a.recycle();
+        return res;
+    }
 }