<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" > <ListView android:id="@+id/choose_contact_list" android:layout_width="match_parent" android:layout_height="match_parent" tools:listitem="@layout/contact" /> </LinearLayout>