Fix magic numbers in preview_image_fragment.xml #12

res/layout/preview_image_fragment.xml

@@ -47,7 +47,7 @@
         android:id="@+id/image"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:layout_margin="0dp"
+        android:layout_margin="@dimen/zero"
         android:layout_centerInParent="true"
         android:contentDescription="@string/preview_image_description"
         android:src="@drawable/image_fail" />
@@ -58,7 +58,7 @@
         android:layout_height="wrap_content"
         android:layout_centerHorizontal="true"
         android:layout_alignParentBottom="true"
-        android:layout_margin="40dp"
+        android:layout_margin="@dimen/preview_image_fragment_display_text_margin"
         android:text="@string/placeholder_sentence"
         android:textColor="@color/owncloud_blue_bright"
         />

res/values/dims.xml

@@ -107,4 +107,6 @@
 
     <dimen name="standard_margin_independent">16dip</dimen>
     <dimen name="standard_quarter_margin_negative_independent">-4dip</dimen>
+
+    <dimen name="preview_image_fragment_display_text_margin">40dp</dimen>
 </resources>