new chat date divider

res/drawable/list_selector.xml

@@ -15,5 +15,5 @@
             <solid android:color="#0f000000" />
         </shape>
     </item>
-    <item android:drawable="@android:drawable/screen_background_light_transparent" />
+    <item android:drawable="@drawable/screen_background_light_transparent" />
 </selector>

res/layout/chat_view_header.xml

@@ -1,7 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
-<TextView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical" android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:gravity="center_horizontal"
-    android:textSize="18sp"
-    android:background="#a0efebe9" />
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_height="wrap_content"
+    android:layout_width="match_parent"
+    android:orientation="vertical">
+
+    <TextView
+        android:orientation="vertical"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:id="@+id/text"
+        android:gravity="center_horizontal"
+        android:textSize="14sp"
+        android:background="@drawable/chat_time_header_background"
+        android:layout_gravity="center_horizontal"
+        android:padding="5dp" />
+</LinearLayout>

res/values/colors.xml

@@ -84,4 +84,6 @@
         <item>#FF795548</item>
         <item>#FF607d8b</item>
     </array>
+
+    <drawable name="screen_background_light_transparent">#00ffffff</drawable>
 </resources>

src/ru/sawim/models/MessagesAdapter.java

@@ -34,7 +34,7 @@
  * To change this template use File | Settings | File Templates.
  */
 public class MessagesAdapter extends RecyclerView.Adapter<MessagesAdapter.ViewHolder>
-        implements StickyRecyclerHeadersAdapter<RecyclerView.ViewHolder>, View.OnClickListener {
+        implements StickyRecyclerHeadersAdapter<MessagesAdapter.HeaderHolder>, View.OnClickListener {
 
     private List<MessData> items;
 
@@ -157,21 +157,22 @@ public void onViewRecycled(ViewHolder holder) {
     @Override
     public long getHeaderId(int position) {
         MessData current = getItem(position);
-        return TimeUnit.MILLISECONDS.toDays(current.getTime());
+        if (current != null) {
+            return TimeUnit.MILLISECONDS.toDays(current.getTime());
+        }
+        return -1;
     }
 
     @Override
-    public RecyclerView.ViewHolder onCreateHeaderViewHolder(ViewGroup parent) {
+    public HeaderHolder onCreateHeaderViewHolder(ViewGroup parent) {
         View view = LayoutInflater.from(parent.getContext())
                 .inflate(R.layout.chat_view_header, parent, false);
-        return new RecyclerView.ViewHolder(view) {
-        };
+        return new HeaderHolder(view);
     }
 
     @Override
-    public void onBindHeaderViewHolder(RecyclerView.ViewHolder holder, int position) {
-        TextView textView = (TextView) holder.itemView;
-        textView.setText(formatDate(getItem(position).getTime()));
+    public void onBindHeaderViewHolder(HeaderHolder holder, int position) {
+        holder.header.setText(formatDate(getItem(position).getTime()));
     }
 
     @Override
@@ -225,12 +226,12 @@ public ViewHolder(View itemView) {
     }
 
     static class HeaderHolder extends RecyclerView.ViewHolder {
-        public TextView header;
+        TextView header;
 
         public HeaderHolder(View itemView) {
             super(itemView);
 
-            header = (TextView) itemView;
+            header = (TextView) itemView.findViewById(R.id.text);
         }
     }