<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="48dp"
    android:orientation="vertical"
    android:padding="10dp">

    <EditText
        android:id="@+id/et_search"
        android:gravity="center"
        android:includeFontPadding="false"
        android:layout_width="match_parent"
        android:layout_height="28dp"
        android:background="@drawable/shape_001"
        android:hint="搜索"
        android:textColorHint="#aaa"
        android:textColor="#444"
        android:textSize="18sp" />

</LinearLayout>