Listview

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
    tools:context="com.example.pc.xiangmuer.view.activity.MainActivity">
    <ListView
        android:id="@+id/login_list"
        android:layout_width="match_parent"
        android:layout_height="3000dp"
        android:layout_marginTop="10dp"
        android:divider="#fff"
        android:dividerHeight="5dp"></ListView>

</android.support.constraint.C

onstraintLayout>