Android dialog box width gets really small when I set a background image for an activity? -

in android project, added background image activity xml file. set style not show title bar on top. activity has button when pressed show dialog box.

recently added image , made not show title bar, when went test out, , clicked button, dialog box width 100px. before added background image, dialog box width fine, fills parent.

this xml file used dialog box:

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:orientation="vertical" >      <linearlayout         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:layout_margin="@dimen/activity_vertical_margin"         android:orientation="vertical" >          <textview             android:id="@+id/textview_email"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:text="@+string/email" />          <edittext             android:id="@+id/textinput_email"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:ems="10"             android:inputtype="textemailaddress"             android:text="james.jn1981@gmail.com" />          <textview             android:id="@+id/textview_password"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:text="@+string/password" />          <edittext             android:id="@+id/textinput_password"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:ems="10"             android:inputtype="textpassword"             android:text="123" />      </linearlayout>      <linearlayout         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:orientation="horizontal" >          <button             android:id="@+id/button_exit"             style="@style/footer"             android:background="@drawable/bg_footer"             android:text="@+string/cancel" />          <button             android:id="@+id/button_login"             style="@style/footer"             android:background="@drawable/bg_footer"             android:text="@+string/ok" />      </linearlayout>  </linearlayout> 

does know whats wrong here?

edit:

its that's causing issue:

        android:theme="@android:style/theme.notitlebar" 

how can remove title bar , still make dialog width normal width?

thanks

try this:

    //use android.r.style.theme or theme_light     dialog dialog = new dialog(context, android.r.style.theme_light);                 dialog.requestwindowfeature(window.feature_no_title);      //whatever layout file     dialog.setcontentview(r.layout.mycustomdialoglayout);         dialog.show();