fix: 引入Settings的Module

Settings/res/xml/smart_forwarding_mdn_handler.xml

@@ -0,0 +1,27 @@
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent">
+
+    <fragment android:id="@+id/fragment_settings"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_above="@+id/cancel"
+            android:name="com.android.settings.sim.smartForwarding.MDNHandlerHeaderFragment"
+            android:layout_marginBottom="15dp" />
+
+    <Button android:id="@+id/process"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignParentBottom="true"
+            android:layout_alignParentRight="true"
+            android:layout_margin="5dip"
+            android:text="process" />
+
+    <Button android:id="@+id/cancel"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignParentBottom="true"
+            android:layout_margin="5dip"
+            android:text="cancel" />
+
+</RelativeLayout>