lint: fix descriptions on user info graphics

src/main/res/layout/toolbar_user_information.xml

@@ -59,7 +59,8 @@
                     android:id="@+id/user_icon"
                     android:layout_width="@dimen/nav_drawer_header_avatar"
                     android:layout_height="@dimen/nav_drawer_header_avatar"
-                    android:src="@drawable/ic_account_circle"/>
+                    android:src="@drawable/ic_account_circle"
+                    android:contentDescription="@string/avatar"/>
             </FrameLayout>
 
             <LinearLayout

src/main/res/layout/user_info_layout.xml

@@ -46,7 +46,7 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:orientation="vertical"
-                android:visibility="gone">
+                android:visibility="visible">
 
                 <android.support.v7.widget.CardView
                     android:id="@+id/primary_user_info_view"
@@ -75,7 +75,8 @@
                                 android:layout_marginLeft="@dimen/standard_icon_list_horizontal_margin"
                                 android:layout_marginRight="@dimen/standard_icon_list_horizontal_margin"
                                 android:layout_marginTop="@dimen/standard_margin"
-                                android:src="@drawable/ic_phone"/>
+                                android:src="@drawable/ic_phone"
+                                android:contentDescription="@string/user_info_phone"/>
 
                             <TextView
                                 android:id="@+id/phone_number"
@@ -111,7 +112,8 @@
                                 android:layout_marginLeft="@dimen/standard_icon_list_horizontal_margin"
                                 android:layout_marginRight="@dimen/standard_icon_list_horizontal_margin"
                                 android:layout_marginTop="@dimen/standard_margin"
-                                android:src="@drawable/ic_email"/>
+                                android:src="@drawable/ic_email"
+                                android:contentDescription="@string/user_info_email"/>
 
                             <TextView
                                 android:id="@+id/email_address"
@@ -147,7 +149,8 @@
                                 android:layout_marginLeft="@dimen/standard_icon_list_horizontal_margin"
                                 android:layout_marginRight="@dimen/standard_icon_list_horizontal_margin"
                                 android:layout_marginTop="@dimen/standard_margin"
-                                android:src="@drawable/ic_map_marker"/>
+                                android:src="@drawable/ic_map_marker"
+                                android:contentDescription="@string/user_info_address"/>
 
                             <TextView
                                 android:id="@+id/address"
@@ -183,7 +186,8 @@
                                 android:layout_marginBottom="@dimen/standard_margin"
                                 android:layout_marginLeft="@dimen/standard_icon_list_horizontal_margin"
                                 android:layout_marginRight="@dimen/standard_icon_list_horizontal_margin"
-                                android:layout_marginTop="@dimen/standard_margin"/>
+                                android:layout_marginTop="@dimen/standard_margin"
+                                android:contentDescription="@string/user_info_website"/>
 
                             <TextView
                                 android:id="@+id/website_address"
@@ -220,7 +224,8 @@
                                 android:layout_marginLeft="@dimen/standard_icon_list_horizontal_margin"
                                 android:layout_marginRight="@dimen/standard_icon_list_horizontal_margin"
                                 android:layout_marginTop="@dimen/standard_margin"
-                                android:src="@drawable/ic_twitter"/>
+                                android:src="@drawable/ic_twitter"
+                                android:contentDescription="@string/user_info_twitter"/>
 
                             <TextView
                                 android:id="@+id/twitter_handle"