activity_map.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/white"
    android:orientation="vertical">

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

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <com.amap.api.maps.MapView
            android:id="@+id/map"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:layout_gravity="center_horizontal|bottom"
            android:layout_marginBottom="100dp">

            <Button
                android:id="@+id/btn_search"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="开始搜索" />

            <Button
                android:id="@+id/btn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="开始定位" />

        </LinearLayout>


    </FrameLayout>

</LinearLayout>