From 4b01ac4b22dcba7ce7a51c5db7b18d97e481f54b Mon Sep 17 00:00:00 2001
From: connieshi <connieshi@google.com>
Date: Thu, 30 Jul 2020 12:13:03 -0400
Subject: [PATCH] [Chip] Update chipgroup demo to include switch to toggle the
 requiredSelection attr.

PiperOrigin-RevId: 324015228
---
 .../catalog/chip/ChipGroupDemoFragment.java         | 13 +++++++++++++
 .../chip/res/layout/cat_chip_group_fragment.xml     |  8 +++++++-
 .../io/material/catalog/chip/res/values/strings.xml |  2 ++
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/catalog/java/io/material/catalog/chip/ChipGroupDemoFragment.java b/catalog/java/io/material/catalog/chip/ChipGroupDemoFragment.java
index bee6cf4b3..d6053cc00 100644
--- a/catalog/java/io/material/catalog/chip/ChipGroupDemoFragment.java
+++ b/catalog/java/io/material/catalog/chip/ChipGroupDemoFragment.java
@@ -34,6 +34,7 @@ import io.material.catalog.feature.DemoFragment;
 public class ChipGroupDemoFragment extends DemoFragment {
 
   private SwitchMaterial singleSelectionSwitch;
+  private SwitchMaterial selectionRequiredSwitch;
 
   @Nullable
   @Override
@@ -42,6 +43,8 @@ public class ChipGroupDemoFragment extends DemoFragment {
     View view = layoutInflater.inflate(getChipGroupContent(), viewGroup, false /* attachToRoot */);
 
     singleSelectionSwitch = view.findViewById(R.id.single_selection);
+    selectionRequiredSwitch = view.findViewById(R.id.selection_required);
+
     ChipGroup reflowGroup = view.findViewById(R.id.reflow_group);
     ChipGroup scrollGroup = view.findViewById(R.id.scroll_group);
 
@@ -53,6 +56,16 @@ public class ChipGroupDemoFragment extends DemoFragment {
           initChipGroup(reflowGroup);
           initChipGroup(scrollGroup);
         });
+
+    selectionRequiredSwitch.setOnCheckedChangeListener(
+        (buttonView, isChecked) -> {
+          reflowGroup.setSelectionRequired(isChecked);
+          scrollGroup.setSelectionRequired(isChecked);
+
+          initChipGroup(reflowGroup);
+          initChipGroup(scrollGroup);
+        });
+
     initChipGroup(reflowGroup);
     initChipGroup(scrollGroup);
 
diff --git a/catalog/java/io/material/catalog/chip/res/layout/cat_chip_group_fragment.xml b/catalog/java/io/material/catalog/chip/res/layout/cat_chip_group_fragment.xml
index 9a2e58f5d..549bcff0b 100644
--- a/catalog/java/io/material/catalog/chip/res/layout/cat_chip_group_fragment.xml
+++ b/catalog/java/io/material/catalog/chip/res/layout/cat_chip_group_fragment.xml
@@ -29,7 +29,13 @@
         android:layout_height="wrap_content"
         android:text="@string/cat_chip_group_single_selection_text"/>
 
-    <com.google.android.material.floatingactionbutton.FloatingActionButton
+  <com.google.android.material.switchmaterial.SwitchMaterial
+    android:id="@+id/selection_required"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:text="@string/cat_chip_group_selection_required_text"/>
+
+  <com.google.android.material.floatingactionbutton.FloatingActionButton
         android:id="@+id/cat_chip_group_refresh"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
diff --git a/catalog/java/io/material/catalog/chip/res/values/strings.xml b/catalog/java/io/material/catalog/chip/res/values/strings.xml
index 85db3f4d0..7629239af 100644
--- a/catalog/java/io/material/catalog/chip/res/values/strings.xml
+++ b/catalog/java/io/material/catalog/chip/res/values/strings.xml
@@ -31,6 +31,8 @@
 
   <string name="cat_chip_group_demo_title">Chip Group Demo</string>
   <string name="cat_chip_group_single_selection_text">Single selection</string>
+  <string name="cat_chip_group_selection_required_text">Selection required</string>
+
   <string name="cat_chip_reflow_group">Reflowing chip group</string>
   <string name="cat_chip_scroll_group">Scrolling chip group</string>