refactor: add underline util

Author: BrayanDSO

AnkiDroid/src/main/java/com/ichi2/anki/ui/windows/reviewer/StudyCountsView.kt

@@ -24,6 +24,7 @@ import android.widget.LinearLayout
 import android.widget.TextView
 import com.ichi2.anki.databinding.ViewStudyCountsBinding
 import com.ichi2.anki.libanki.sched.Counts
+import com.ichi2.utils.UiUtil
 
 /**
  * Displays New, Learn, and Review counts.
@@ -47,9 +48,7 @@ class StudyCountsView : LinearLayout {
                 }
             text =
                 if (counts.activeQueue == queue) {
-                    SpannableString(newText).apply {
-                        setSpan(UnderlineSpan(), 0, length, 0)
-                    }
+                    UiUtil.underline(newText)
                 } else {
                     newText
                 }

AnkiDroid/src/main/java/com/ichi2/utils/UiUtil.kt

@@ -18,8 +18,10 @@ package com.ichi2.utils
 import android.app.Dialog
 import android.graphics.Typeface
 import android.text.Spannable
+import android.text.SpannableString
 import android.text.SpannableStringBuilder
 import android.text.style.StyleSpan
+import android.text.style.UnderlineSpan
 import android.view.ViewGroup
 import android.widget.Spinner
 
@@ -30,6 +32,11 @@ object UiUtil {
         return str
     }
 
+    fun underline(string: String): Spannable =
+        SpannableString(string).apply {
+            setSpan(UnderlineSpan(), 0, length, 0)
+        }
+
     fun Spinner.setSelectedValue(value: Any?) {
         for (position in 0 until this.adapter.count) {
             if (this.adapter.getItem(position) != value) continue