1. LinearLayoutCompat

<android.support.v7.widget.LinearLayoutCompat
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    tools:context="com.example.spring.demo.MainActivity"
    android:orientation="vertical"

    app:divider="@drawable/line"       
    app:showDividers="beginning|middle|end"
    app:dividerPadding="15dp"
    android:id="@+id/llc">
    ..........
</android.support.v7.widget.LinearLayoutCompat>

drawable/line
app:divider="@drawable/line" 代码实现 linearLayoutCompat.setDividerDrawable();

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
  <solid android:color="@color/colorAccent"/>
  <size android:height="3dp"/>
  <padding android:bottom="0dp" android:left="15dp" android:right="15dp" android:top="0dp"/>
</shape>

showDividers 设置dividers 的位置 beginning 开始 middle 每个view的中间 end 结束
app:showDividers="beginning|middle|end"
代码实现 linearLayoutCompat.setShowDividers();

dividerPadding
app:dividerPadding="15dp"
代码实现 linearLayoutCompat.setDividerPadding();

2.效果图

Paste_Image.png