16发送位置的消息类型布局

<?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="match_parent"
    android:orientation="vertical" 
    android:gravity="center_horizontal"
    android:paddingTop="13dp"
    >
    
     <TextView
         android:text="上午 11:12"
        android:id="@+id/timestamp"
        style="@style/chat_text_date_style"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    
     <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/margin_chat_activity" >

        <ImageView
            android:id="@+id/iv_userhead"
            android:layout_width="@dimen/size_avatar"
            android:layout_height="@dimen/size_avatar"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:layout_marginRight="@dimen/margin_chat_activity"
            android:background="@drawable/mini_avatar_shadow"
            android:scaleType="fitXY" />

        <LinearLayout
            android:id="@+id/ll_location"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="@dimen/margin_chat_activity"
            android:layout_toLeftOf="@id/iv_userhead"
            android:background="@drawable/chatto_bg" >

            <TextView
                android:text="合肥市科学岛"
                android:id="@+id/tv_location"
                style="@style/chat_content_date_style"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@drawable/location_msg"
                android:gravity="center"
                android:textColor="@android:color/white" />
        </LinearLayout>

        <ImageView
            android:id="@+id/msg_status"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:layout_toLeftOf="@id/ll_location"
            android:clickable="true"
            android:src="@drawable/msg_state_failed_resend"
            android:visibility="gone" />
        
        <TextView
            android:id="@+id/tv_ack"
            style="@style/chat_text_name_style"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:text="@string/text_ack_msg"
            android:textSize="12sp"
            android:layout_toLeftOf="@id/ll_location"
            android:visibility="invisible"
            />

        <TextView
            
            android:id="@+id/tv_delivered"
            style="@style/chat_text_name_style"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:text="@string/text_delivered_msg"
            android:textSize="12sp"
            android:layout_toLeftOf="@id/tv_chatcontent"
            android:visibility="invisible"
            />
        
        <ProgressBar
            android:id="@+id/pb_sending"
            android:layout_width="25dp"
            android:layout_height="25dp"
            android:layout_centerVertical="true"
            android:layout_toLeftOf="@id/ll_location"
            android:visibility="visible" />
    </RelativeLayout>

</LinearLayout>