Implementing custom Edittext style in android -

i creating custom edit text in android adding xml in drawable res.it following

<?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" >     <!-- border -->     <item>         <shape>             <solid android:color="@color/gray"></solid>         </shape>     </item>     <!-- body -->     <item            android:bottom="1dp"           android:right="0dp"           android:left="0dp"           android:top="0dp">         <shape>             <solid android:color="@color/white"></solid>         </shape>      </item> </layer-list>    <edittext                 android:id="@+id/edt_password"                 android:layout_width="match_parent"                 android:layout_height="wrap_content"                 android:layout_gravity="center"                 android:background="@drawable/edittext"                 android:digits="1234567890"                 android:ellipsize="end"                 android:focusableintouchmode="true"                 android:inputtype="numberpassword"                 android:singleline="true"                 android:textcolor="@color/dark" /> 

so want edittext single line. when implement this, few seconds upper border of edittext visible , goes away... not getting why happening...

create res/drawable/custom_edittext_style.xml

<selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_window_focused="false" android:state_enabled="true" android:drawable="@drawable/apptheme_textfield_default_holo_light" /> <item android:state_window_focused="false" android:state_enabled="false" android:drawable="@drawable/apptheme_textfield_disabled_holo_light" /> <item android:state_enabled="true" android:state_focused="true" android:drawable="@drawable/apptheme_textfield_activated_holo_light" /> <item android:state_enabled="true" android:state_activated="true" android:drawable="@drawable/apptheme_textfield_focused_holo_light" /> <item android:state_enabled="true" android:drawable="@drawable/apptheme_textfield_default_holo_light" /> <item android:state_focused="true" android:drawable="@drawable/apptheme_textfield_disabled_focused_holo_light" /> <item android:drawable="@drawable/apptheme_textfield_disabled_holo_light" /> 

and add require drawable file drawable folder.

 <edittext             android:id="@+id/edt_password"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:layout_gravity="center"             android:background="@drawable/custom_edittext_style"             android:digits="1234567890"             android:ellipsize="end"             android:focusableintouchmode="true"             android:inputtype="numberpassword"             android:singleline="true"             android:textcolor="@color/dark" />