Update constraints and id.

app/src/main/res/layout/item_chat.xml

@@ -55,28 +55,15 @@
         android:layout_height="wrap_content"
         app:layout_constraintRight_toRightOf="parent">
 
-        <android.support.constraint.Guideline
-            android:id="@+id/guideline_one"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:orientation="horizontal"
-            app:layout_constraintGuide_begin="22dp" />
-
         <TextView
-            android:id="@+id/text_last_message_timestamp"
+            android:id="@+id/text_last_message_date_time"
             style="@style/TextAppearance.AppCompat.Caption"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            app:layout_constraintBottom_toBottomOf="@+id/guideline_one"
+            app:layout_constraintBottom_toTopOf="@+id/guideline_one"
+            app:layout_constraintRight_toRightOf="@+id/text_total_unread_messages"
             tools:text="11:45" />
 
-        <android.support.constraint.Guideline
-            android:id="@+id/guideline_two"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:orientation="horizontal"
-            app:layout_constraintGuide_begin="48dp" />
-
         <TextView
             android:id="@+id/text_total_unread_messages"
             style="@style/TextAppearance.AppCompat.Caption"
@@ -87,10 +74,24 @@
             android:textColor="@color/white"
             android:textSize="10sp"
             android:visibility="gone"
-            app:layout_constraintBottom_toBottomOf="@+id/guideline_two"
+            app:layout_constraintBottom_toTopOf="@+id/guideline_two"
             app:layout_constraintRight_toRightOf="parent"
             tools:text="99+"
             tools:visibility="visible" />
+
+        <android.support.constraint.Guideline
+            android:id="@+id/guideline_one"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            app:layout_constraintGuide_begin="22dp" />
+
+        <android.support.constraint.Guideline
+            android:id="@+id/guideline_two"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            app:layout_constraintGuide_begin="48dp" />
     </android.support.constraint.ConstraintLayout>
 
 </android.support.constraint.ConstraintLayout>
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