log

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

@@ -15,10 +15,11 @@
             android:layout_width="400dp"
             android:layout_height="300dp"
             android:layout_margin="20dip"
-            android:layout_centerHorizontal="true"
+            android:layout_centerInParent="true"
             android:background="@mipmap/bk1"
             android:orientation="vertical"
             android:padding="40dip" >
+
             <LinearLayout
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content">
@@ -101,4 +102,13 @@
         </LinearLayout>
 
     </RelativeLayout>
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_centerInParent="true"
+        android:background="@mipmap/bg_milk"
+        android:alpha="0.2">
+
+
+    </LinearLayout>
 </RelativeLayout>