sheishuoAPP/app/res/layout/trade_detail_activity.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"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <com.sheishuo.app.common.views.BaseToolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorPrimary"
        android:title="详情" />
    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <android.support.constraint.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:padding="8dp">

            <com.netease.nim.uikit.common.ui.imageview.HeadImageView
                android:id="@+id/trade_detail_avatar"
                android:layout_width="48dp"
                android:layout_height="48dp"
                android:layout_marginLeft="8dp"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:src="@drawable/ic_add_friends"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintTop_toTopOf="parent" />

            <TextView
                android:id="@+id/trade_detail_username"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="15dp"
                android:layout_marginStart="15dp"
                android:layout_marginTop="0dp"
                android:text="用户名"
                android:textSize="16sp"
                app:layout_constraintLeft_toRightOf="@+id/trade_detail_avatar"
                app:layout_constraintTop_toTopOf="@+id/trade_detail_avatar" />

            <TextView
                android:id="@+id/trade_detail_location"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="8dp"
                android:layout_marginStart="8dp"
                android:layout_marginTop="12dp"
                android:text="地理位置"
                android:textColor="@color/grey_light"
                android:textSize="14dp"
                app:layout_constraintLeft_toLeftOf="@+id/trade_detail_username"
                app:layout_constraintRight_toRightOf="@+id/trade_detail_username"
                app:layout_constraintTop_toBottomOf="@+id/trade_detail_username" />

            <TextView
                android:id="@+id/trade_detail_date"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="8dp"
                android:layout_marginLeft="135dp"
                android:layout_marginRight="8dp"
                android:layout_marginStart="135dp"
                android:text="2017.08.04"
                app:layout_constraintHorizontal_bias="0.171"
                app:layout_constraintLeft_toRightOf="@+id/trade_detail_username"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toTopOf="@+id/trade_detail_username" />

            <TextView
                android:id="@+id/trade_detail_priority"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="8dp"
                android:layout_marginRight="8dp"
                android:text="置顶1314"
                app:layout_constraintBottom_toBottomOf="@+id/trade_detail_location"
                app:layout_constraintRight_toLeftOf="@+id/trade_detail_views" />

            <TextView
                android:id="@+id/trade_detail_views"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="阅读101"
                app:layout_constraintBottom_toBottomOf="@+id/trade_detail_priority"
                app:layout_constraintRight_toRightOf="@+id/trade_detail_date" />

            <TextView
                android:id="@+id/trade_detail_content"
                android:layout_width="336dp"
                android:layout_height="wrap_content"
                android:layout_marginLeft="8dp"
                android:layout_marginRight="8dp"
                android:layout_marginTop="8dp"
                android:text="这里是内容这里是内容这里
            是内容这里是内容这里是内容这
            里是内容这里是内容这里是内容"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/trade_detail_priority"
                android:layout_marginStart="8dp"
                android:layout_marginEnd="8dp" />

            <LinearLayout
                android:id="@+id/trade_detail_imgs_layout"
                android:layout_width="352dp"
                android:layout_height="300dp"
                android:layout_marginTop="27dp"
                app:layout_constraintTop_toBottomOf="@+id/trade_detail_content"
                android:layout_marginLeft="8dp"
                app:layout_constraintLeft_toLeftOf="parent"
                android:layout_marginRight="8dp"
                app:layout_constraintRight_toRightOf="parent"
                android:orientation="vertical"/>
        </android.support.constraint.ConstraintLayout>
    </ScrollView>
</LinearLayout>