Merge "Create palette preview for color correction."

res/layout/daltonizer_preview.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2020 The Android Open Source Project
+
+  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
+
+       http://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/preview_viewport"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content">
+
+    <com.android.settings.accessibility.PaletteListView
+        android:id="@+id/palette_listView"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:contentDescription="@null" />
+
+</FrameLayout>

res/layout/palette_listview_item.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2020 The Android Open Source Project
+
+  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
+
+       http://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:layout_width="wrap_content"
+    android:layout_height="wrap_content">
+
+    <TextView
+        android:id="@+id/item_textview"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingLeft="10dp"
+        android:textSize="20dp"
+        android:maxLength="20"
+        android:singleLine="true"/>
+
+</FrameLayout>