guanguan_app1/app/src/main/res/layout/activity_home.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:layout_alignParentTop="true"
        android:layout_above="@+id/ll_bottom_lab">

        <fragment
            android:id="@+id/fm_home"
            android:name="com.ynstkz.shitu.android.fragment.HomeFragment"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>

        <fragment
            android:id="@+id/fm_nearby"
            android:name="com.ynstkz.shitu.android.fragment.NearbyFragment"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>

        <fragment
            android:id="@+id/fm_usercent"
            android:name="com.ynstkz.shitu.android.fragment.UserCenterFragment"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>

    </LinearLayout>

    <LinearLayout
        android:id="@+id/ll_bottom_lab"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:orientation="horizontal">

        <include layout="@layout/view_main_bottom"/>

    </LinearLayout>

</RelativeLayout>