<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="地铁查询系统"
android:textSize="50dp"
android:textColor="@color/white"
android:background="#E91E63"
android:gravity="center">>
</TextView>
</LinearLayout>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/add"
android:text="线路查询"
android:textColor="@color/white">
</Button>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/clock"
android:text="站点查询"
android:textColor="@color/white">
</Button>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/query"
android:text="换乘查询"
android:textColor="@color/white">
</Button>
</LinearLayout>