[SuwLib] GLIF layout adjustment for headers

- Store the list item directly in the view holder and update in
  onBindViewHolder, so that the click handler is not prone to adapter
  position changes.
- Glif[List/Recycler]Layout now returns the wrapped adapter when
  getAdapter is called.
- Disable dividers for header views

Change-Id: Ie782a4de06e2296d4996cb8b81b5d7d3fc834ccf

1 files changed, 6 insertions, 1 deletions

diff --git a/library/main/src/com/android/setupwizardlib/GlifListLayout.java b/library/main/src/com/android/setupwizardlib/GlifListLayout.java
index 4a1859f..77065c8 100644
--- a/library/main/src/com/android/setupwizardlib/GlifListLayout.java
+++ b/library/main/src/com/android/setupwizardlib/GlifListLayout.java
@@ -26,6 +26,7 @@ import android.util.AttributeSet;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.HeaderViewListAdapter;
 import android.widget.ListAdapter;
 import android.widget.ListView;
 
@@ -132,7 +133,11 @@ public class GlifListLayout extends GlifLayout {
     }
 
     public ListAdapter getAdapter() {
-        return getListView().getAdapter();
+        final ListAdapter adapter = getListView().getAdapter();
+        if (adapter instanceof HeaderViewListAdapter) {
+            return ((HeaderViewListAdapter) adapter).getWrappedAdapter();
+        }
+        return adapter;
     }
 
     /**