adding a helper function for getting a colored group icon

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         propMinSdkVersion = 21
         propTargetSdkVersion = propCompileSdkVersion
         propVersionCode = 1
-        propVersionName = '5.25.18'
+        propVersionName = '5.25.19'
         kotlin_version = '1.3.72'
     }
 

commons/src/main/kotlin/com/simplemobiletools/commons/extensions/Context.kt

@@ -8,6 +8,8 @@ import android.content.pm.PackageManager
 import android.content.res.Configuration
 import android.database.Cursor
 import android.graphics.*
+import android.graphics.drawable.Drawable
+import android.graphics.drawable.LayerDrawable
 import android.media.ExifInterface
 import android.media.MediaMetadataRetriever
 import android.media.RingtoneManager
@@ -854,3 +856,10 @@ fun Context.getContactLetterIcon(name: String): Bitmap {
     view.draw(canvas)
     return bitmap
 }
+
+fun Context.getColoredGroupIcon(title: String): Drawable {
+    val icon = resources.getDrawable(R.drawable.ic_group_circle_bg)
+    val bgColor = letterBackgroundColors[Math.abs(title.hashCode()) % letterBackgroundColors.size].toInt()
+    (icon as LayerDrawable).findDrawableByLayerId(R.id.attendee_circular_background).applyColorFilter(bgColor)
+    return icon
+}

commons/src/main/res/drawable/ic_group_circle_bg.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/attendee_circular_background">
+        <shape android:shape="oval">
+            <solid android:color="@color/color_primary" />
+        </shape>
+    </item>
+
+    <item
+        android:bottom="@dimen/medium_margin"
+        android:drawable="@drawable/ic_people_vector"
+        android:left="@dimen/medium_margin"
+        android:right="@dimen/medium_margin"
+        android:top="@dimen/medium_margin" />
+
+</layer-list>