popup window preview

app/src/main/res/drawable/ic_baseline_check_circle_24.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM10,17l-5,-5 1.41,-1.41L10,14.17l7.59,-7.59L19,8l-9,9z"/>
+</vector>

app/src/main/res/layout/activity_main.xml

@@ -55,6 +55,8 @@
 
             <com.google.android.material.textfield.TextInputLayout
                 android:id="@+id/popupPosition"
+                app:endIconMode="custom"
+                app:endIconDrawable="@drawable/ic_baseline_check_circle_24"
                 android:hint="@string/popup_position"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content">

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

@@ -6,7 +6,7 @@
     <string name="destination_signal">Signal</string>
     <string name="destination_telegram">Telegram</string>
     <string name="destination_threema">Threema</string>
-    <string name="redirection_delay_description">Delay before a call will be redirected.</string>
+    <string name="redirection_delay_description">The delay before a call will be redirected.</string>
     <string name="popup_position">Popup position</string>
     <string name="fallback">Fallback</string>
     <string name="fallback_description">Redirect to WhatsApp if no other available.</string>