sheishuoAPP/app/res/layout/trade_list_search.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/trade_list_search_parent_layout">
    <LinearLayout
        android:id="@+id/trade_list_search_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorPrimary"
        android:orientation="horizontal"
        android:gravity="center_vertical"
        android:visibility="visible"
        android:padding="8dp">

        <EditText
            android:id="@+id/trade_list_search_ET"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="9"
            android:hint="请输入搜索内容"
            android:textColorHint="@color/white" >
            <requestFocus/>
        </EditText>
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_action_search"/>
        <TextView
            android:id="@+id/trade_list_search"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="搜索"
            android:textSize="18sp"
            android:textColor="@color/white"/>
    </LinearLayout>
</LinearLayout>