Define DrawAreaTaskFragment in XML instead of creating programmatically

ground/src/main/java/com/google/android/ground/ui/datacollection/tasks/polygon/DrawAreaTaskFragment.kt

@@ -19,7 +19,6 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.LinearLayout
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.ui.platform.ComposeView
@@ -58,16 +57,21 @@ class DrawAreaTaskFragment @Inject constructor() : AbstractTaskFragment<DrawArea
   override fun onCreateTaskBody(inflater: LayoutInflater): View {
     // NOTE(#2493): Multiplying by a random prime to allow for some mathematical "uniqueness".
     // Otherwise, the sequentially generated ID might conflict with an ID produced by Google Maps.
-    val rowLayout = LinearLayout(requireContext()).apply { id = View.generateViewId() * 11411 }
+    val rootView = inflater.inflate(R.layout.fragment_draw_area_task, null)
+
     drawAreaTaskMapFragment = drawAreaTaskMapFragmentProvider.get()
     val args = Bundle()
     args.putString(TASK_ID_FRAGMENT_ARG_KEY, taskId)
     drawAreaTaskMapFragment.arguments = args
     parentFragmentManager
       .beginTransaction()
-      .add(rowLayout.id, drawAreaTaskMapFragment, DrawAreaTaskMapFragment::class.java.simpleName)
+      .add(
+        R.id.container_draw_area_task_map,
+        drawAreaTaskMapFragment,
+        DrawAreaTaskMapFragment::class.java.simpleName,
+      )
       .commit()
-    return rowLayout
+    return rootView
   }
 
   override fun onCreateActionButtons() {

ground/src/main/res/layout/fragment_draw_area_task.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  ~ Copyright 2022 Google LLC
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     https://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+  android:id="@+id/container_draw_area_task_map"
+  android:layout_width="match_parent"
+  android:layout_height="wrap_content" />