display keyserver status on card

OpenKeychain/src/main/res/layout/key_keyserver_card_content.xml

@@ -0,0 +1,78 @@
+<merge
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <TextView
+            style="@style/CardViewHeader"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Keyserver Status" />
+
+        <LinearLayout
+            android:orientation="horizontal"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:id="@+id/key_health_layout"
+            android:paddingTop="12dp"
+            android:paddingBottom="12dp"
+            android:paddingLeft="8dp"
+            android:paddingRight="8dp"
+            android:background="?selectableItemBackground"
+            >
+
+            <ImageView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:id="@+id/keyserver_icon"
+                tools:src="@drawable/ic_cloud_black_24dp"
+                tools:tint="@color/android_green_light"
+                android:layout_marginLeft="12dp"
+                android:layout_marginRight="12dp"
+                />
+
+            <LinearLayout
+                android:orientation="vertical"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1">
+
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center_vertical"
+                    android:id="@+id/keyserver_status_title"
+                    android:textAppearance="?android:attr/textAppearanceMedium"
+                    tools:text="@string/keyserver_title_published" />
+
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center_vertical"
+                    android:id="@+id/keyserver_status_subtitle"
+                    tools:text="Last updated: 2017-05-20" />
+
+            </LinearLayout>
+
+            <ImageView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:id="@+id/key_health_expander"
+                android:src="@drawable/ic_expand_more_black_24dp"
+                android:layout_marginLeft="12dp"
+                android:layout_marginRight="12dp"
+                android:visibility="gone"
+                tools:visibility="visible"
+                />
+
+        </LinearLayout>
+
+    </LinearLayout>
+
+</merge>

OpenKeychain/src/main/res/values/strings.xml

@@ -1842,6 +1842,11 @@
     <string name="key_health_partial_stripped_title">"Healthy (Partially Stripped)"</string>
     <string name="key_health_partial_stripped_subtitle">"Click for details"</string>
 
+    <string name="keyserver_title_published">"Published"</string>
+    <string name="keyserver_title_not_published">"Not Published"</string>
+    <string name="keyserver_title_unknown">"Unknown"</string>
+    <string name="keyserver_last_updated">"Last updated: %s"</string>
+
     <string name="key_insecure_bitstrength_2048_problem">"This key uses the <b>%1$s</b> algorithm with a strength of <b>%2$s bits</b>. A secure key should have a strength of 2048 bits."</string>
     <string name="key_insecure_bitstrength_2048_solution">"This key can\'t be upgraded. For secure communication, the owner must generate a new key."</string>