Implement Seekbar dialog and SingleChoice dialog

Source/Android/app/src/main/res/layout/dialog_seekbar.xml

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:tools="http://schemas.android.com/tools"
+                android:orientation="vertical"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content">
+
+    <SeekBar
+        android:id="@+id/seekbar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="@dimen/spacing_xlarge"
+        android:layout_marginRight="@dimen/spacing_xlarge"
+        android:layout_alignParentEnd="true"
+        android:layout_alignParentStart="true"
+        android:layout_below="@+id/text_value"
+        android:layout_marginBottom="@dimen/spacing_xlarge"/>
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        tools:text="75"
+        android:id="@+id/text_value"
+        android:layout_alignParentTop="true"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="@dimen/spacing_xlarge"
+        android:layout_marginBottom="@dimen/spacing_large"/>
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        tools:text="%"
+        android:id="@+id/text_units"
+        android:layout_alignTop="@+id/text_value"
+        android:layout_toEndOf="@+id/text_value"/>
+
+</RelativeLayout>

Source/Android/app/src/main/res/layout/slider_layout.xml

@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-              xmlns:tools="http://schemas.android.com/tools"
-              android:orientation="vertical"
-              android:layout_width="match_parent"
-              android:layout_height="match_parent"
-              android:weightSum="1"
-              android:gravity="center_horizontal">
-
-	<SeekBar
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:id="@+id/sliderSeekBar"
-		/>
-
-	<TextView
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		tools:text="Sample Text"
-		android:id="@+id/sliderTextView"
-		android:textStyle="bold"/>
-
-</LinearLayout>