highlight the part of Group title that is searched

app/src/main/kotlin/com/simplemobiletools/contacts/pro/adapters/GroupsAdapter.kt

@@ -7,6 +7,8 @@ import com.simplemobiletools.commons.adapters.MyRecyclerViewAdapter
 import com.simplemobiletools.commons.dialogs.ConfirmationDialog
 import com.simplemobiletools.commons.extensions.applyColorFilter
 import com.simplemobiletools.commons.extensions.beVisibleIf
+import com.simplemobiletools.commons.extensions.getAdjustedPrimaryColor
+import com.simplemobiletools.commons.extensions.highlightTextPart
 import com.simplemobiletools.commons.views.FastScroller
 import com.simplemobiletools.commons.views.MyRecyclerView
 import com.simplemobiletools.contacts.pro.R
@@ -26,7 +28,9 @@ class GroupsAdapter(activity: SimpleActivity, var groups: ArrayList<Group>, val
 
     private var smallPadding = activity.resources.getDimension(R.dimen.small_margin).toInt()
     private var bigPadding = activity.resources.getDimension(R.dimen.normal_margin).toInt()
+    private var textToHighlight = ""
 
+    var adjustedPrimaryColor = activity.getAdjustedPrimaryColor()
     var showContactThumbnails = activity.config.showContactThumbnails
 
     init {
@@ -75,10 +79,16 @@ class GroupsAdapter(activity: SimpleActivity, var groups: ArrayList<Group>, val
 
     private fun getItemWithKey(key: Int): Group? = groups.firstOrNull { it.id!!.toInt() == key }
 
-    fun updateItems(newItems: ArrayList<Group>) {
-        groups = newItems
-        notifyDataSetChanged()
-        finishActMode()
+    fun updateItems(newItems: ArrayList<Group>, highlightText: String = "") {
+        if (newItems.hashCode() != groups.hashCode()) {
+            groups = newItems
+            textToHighlight = highlightText
+            notifyDataSetChanged()
+            finishActMode()
+        } else if (textToHighlight != highlightText) {
+            textToHighlight = highlightText
+            notifyDataSetChanged()
+        }
         fastScroller?.measureRecyclerView()
     }
 
@@ -127,9 +137,16 @@ class GroupsAdapter(activity: SimpleActivity, var groups: ArrayList<Group>, val
     private fun setupView(view: View, group: Group) {
         view.apply {
             group_frame?.isSelected = selectedKeys.contains(group.id!!.toInt())
+            val titleWithCnt = "${group.title} (${group.contactsCount})"
+            val groupTitle = if (textToHighlight.isEmpty()) {
+                titleWithCnt
+            } else {
+                titleWithCnt.highlightTextPart(textToHighlight, adjustedPrimaryColor)
+            }
+
             group_name.apply {
                 setTextColor(textColor)
-                text = String.format(activity.getString(R.string.groups_placeholder), group.title, group.contactsCount.toString())
+                text = groupTitle
                 setPadding(if (showContactThumbnails) smallPadding else bigPadding, smallPadding, smallPadding, 0)
             }
 

app/src/main/kotlin/com/simplemobiletools/contacts/pro/fragments/MyViewPagerFragment.kt

@@ -79,6 +79,10 @@ abstract class MyViewPagerFragment(context: Context, attributeSet: AttributeSet)
         (fragment_list.adapter as? ContactsAdapter)?.apply {
             adjustedPrimaryColor = context.getAdjustedPrimaryColor()
         }
+
+        (fragment_list.adapter as? GroupsAdapter)?.apply {
+            adjustedPrimaryColor = context.getAdjustedPrimaryColor()
+        }
     }
 
     fun startNameWithSurnameChanged(startNameWithSurname: Boolean) {
@@ -268,7 +272,7 @@ abstract class MyViewPagerFragment(context: Context, attributeSet: AttributeSet)
             }
 
             fragment_placeholder.beVisibleIf(filtered.isEmpty())
-            (adapter as? GroupsAdapter)?.updateItems(filtered)
+            (adapter as? GroupsAdapter)?.updateItems(filtered, text)
         }
     }