你可以使用:

android:divider="@null"
android:dividerHeight="3dp"

例子:

<ListView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/listView" android:layout_gravity="center_horizontal"
        android:dividerHeight="3dp"
        android:divider="@null" android:clickable="false"/>

你可以使用:

android:divider="@null"
android:dividerHeight="3dp"

例子:

<ListView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/listView" android:layout_gravity="center_horizontal"
        android:dividerHeight="3dp"
        android:divider="@null" android:clickable="false"/>

Although the solution by Nik Reiman DOES work, I found it not to be an optimal solution for what I wanted to do. Using the divider to set the margins had the problem that the divider will no longer be visible so you can not use it to show a clear boundary between your items. Also, it does not add more "clickable area" to each item thus if you want to make your items clickable and your items are thin, it will be very hard for anyone to click on an item as the height added by the divider is not part of an item.

幸运的是，我找到了一个更好的解决方案，既可以显示分隔符，又可以使用空白来调整每个项目的高度。这里有一个例子:

列表视图

<ListView
android:id="@+id/listView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>

ListItem

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="10dp"
    android:paddingTop="10dp" >

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:text="Item"
        android:textAppearance="?android:attr/textAppearanceSmall" />

</RelativeLayout>

你应该给出padding而不是margin:

<ListView
    android:id="@+id/listView1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:divider="@android:color/green"
    android:dividerHeight="4dp"
    android:layout_alignParentTop="true"
    android:padding="5dp" >

</ListView>

OR

<ListView
    android:id="@+id/listView1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:paddingTop="2dp"
    android:divider="@android:color/green"
    android:dividerHeight="4dp"
    android:paddingLeft="1dp"
    android:paddingRight="1dp"
    android:paddingBottom="2dp"
    android:paddingStart="0dp"
    android:paddingEnd="0dp" >

</ListView>

我的解决方案是增加更多的空间，但保持水平线，在res/drawable文件夹中添加separator .xml，并在其中定义线的形状:

divider.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="line" >

    <stroke
        android:width="1px"
        android:color="@color/nice_blue" />

</shape>

然后在我的列表中引用我的分隔符如下:

<ListView
    android:id="@+id/listViewScheduledReminders"
    android:layout_width="match_parent"
    android:layout_height="0dip"
    android:layout_marginBottom="@dimen/mediumMargin"
    android:layout_weight="1"
    android:divider="@drawable/divider"
    android:dividerHeight="16.0dp"
    android:padding="@dimen/smallMargin" >

</ListView>

注意android:dividerHeight="16.0dp"通过增加和减少这个高度，我基本上是在分隔线的顶部和底部添加了更多的填充。

我使用这个页面作为参考:http://developer.android.com/guide/topics/resources/drawable-resource.html#stroke-element

你只需要使背景透明的列表分割线和高度根据你需要的差距。

<ListView 
         android:id="@+id/custom_list"
         android:layout_height="match_parent"
         android:layout_width="match_parent"
         android:divider="#00ffffff"
         android:dividerHeight="20dp"/>