Configurable drop down answer option.

datacapture/src/androidTest/java/com/google/android/fhir/datacapture/test/views/DropDownViewHolderFactoryEspressoTest.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 Google LLC
+ * Copyright 2023-2024 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -349,6 +349,33 @@ class DropDownViewHolderFactoryEspressoTest {
     assertThat((answerHolder!!.single().value as Reference).id).isEqualTo("ref_2")
   }
 
+  @Test
+  fun shouldSetDefaultValueFromInitialProperty() {
+    val questionnaireViewItem =
+      QuestionnaireViewItem(
+        answerOptions("Coding 1", "Coding 2", "Coding 3", "Coding 4", "Coding 5"),
+        responseOptions(),
+        validationResult = NotValidated,
+        answersChangedCallback = { _, _, _, _ -> },
+      )
+    questionnaireViewItem.questionnaireItem.addInitial(
+      Questionnaire.QuestionnaireItemInitialComponent().apply {
+        this.value = StringType("Select Answer")
+      },
+    )
+    runOnUI {
+      viewHolder.bind(questionnaireViewItem)
+      viewHolder.itemView.findViewById<AutoCompleteTextView>(R.id.auto_complete).showDropDown()
+    }
+    onView(withId(R.id.auto_complete)).perform(delayMainThread())
+    onView(withText("Select Answer"))
+      .inRoot(isPlatformPopup())
+      .check(matches(isDisplayed()))
+      .perform(click())
+    assertThat(viewHolder.itemView.findViewById<TextView>(R.id.auto_complete).text.toString())
+      .isEqualTo("Select Answer")
+  }
+
   /** Method to run code snippet on UI/main thread */
   private fun runOnUI(action: () -> Unit) {
     activityScenarioRule.scenario.onActivity { action() }

datacapture/src/main/java/com/google/android/fhir/datacapture/views/factories/DropDownViewHolderFactory.kt

@@ -67,6 +67,12 @@ internal object DropDownViewHolderFactory :
           hint = questionnaireViewItem.enabledDisplayItems.localizedFlyoverSpanned
           helperText = getRequiredOrOptionalText(questionnaireViewItem, context)
         }
+        val initialAnswerString =
+          if (questionnaireViewItem.questionnaireItem.hasInitial()) {
+            questionnaireViewItem.questionnaireItem.initial.first().valueStringType.valueAsString
+          } else {
+            context.getString(R.string.hyphen)
+          }
         val answerOptionList =
           this.questionnaireViewItem.enabledAnswerOptions
             .map {
@@ -80,8 +86,8 @@ internal object DropDownViewHolderFactory :
         answerOptionList.add(
           0,
           DropDownAnswerOption(
-            context.getString(R.string.hyphen),
-            context.getString(R.string.hyphen),
+            initialAnswerString,
+            initialAnswerString,
             null,
           ),
         )