我的 RecyclerView 和项目具有 match_parent 宽度，但结果是：

    <view
    class="android.support.v7.widget.RecyclerView"
    android:layout_width="match_parent"

和项目：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:fab="http://schemas.android.com/apk/res-auto"
android:id="@+id/ll_itm"
android:orientation="horizontal"
android:layout_width="match_parent"

满的：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:fab="http://schemas.android.com/apk/res-auto"
android:id="@+id/ll_itm"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="100"
android:gravity="right"
>


<Button
    android:layout_width="0dp"
    android:layout_weight="15"
    android:layout_height="fill_parent"
    android:text="賲賱丕丨馗丕鬲"
    android:id="@+id/button" />

<LinearLayout
    android:layout_width="0dp"
    android:layout_height="fill_parent"
    android:layout_weight="20"
    android:gravity="center"
    >
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        >

        <com.getbase.floatingactionbutton.FloatingActionButton
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            fab:fab_plusIconColor="#ff56ff83"
            fab:fab_colorNormal="@color/d_red"
            fab:fab_colorPressed="#ff5c86ff"
            fab:fab_size="mini"
            fab:fab_icon="@drawable/ic_remove_white"
            android:id="@+id/fab_rmv" />
        <esfandune.ir.elmikarbordiardakan.other.CustomTxtView
            android:layout_weight="25"
            android:layout_width="0dp"
            android:layout_height="fill_parent"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="0"
            android:gravity="right|center_vertical"
            android:id="@+id/txt_takhir_itm" />
        <com.getbase.floatingactionbutton.FloatingActionButton
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            fab:fab_plusIconColor="@color/colorprimarylight"
            fab:fab_colorNormal="@color/colorprimarydark"
            fab:fab_colorPressed="@color/colorprimary"
            fab:fab_size="mini"
            fab:fab_icon="@drawable/ic_add_white"
            android:id="@+id/fab_add" />

    </LinearLayout>
</LinearLayout>
    <Spinner
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="10"
        android:id="@+id/sp_nomre_itm"

        android:entries="@array/degrees"/>


<LinearLayout
    android:layout_width="0dp"
    android:layout_height="fill_parent"
    android:layout_weight="10"
    android:gravity="center"
    >
    <!--LinearLayout baraye ine ke nameshod fab ro weight behosh dad-->
    <com.getbase.floatingactionbutton.FloatingActionButton
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        fab:fab_plusIconColor="#ff56ff83"
        fab:fab_colorNormal="@color/d_green"
        fab:fab_colorPressed="@color/d_orange"
        fab:fab_size="normal"
        fab:fab_icon="@drawable/ic_done_white"
        android:id="@+id/fab_hazr" />



</LinearLayout>
<esfandune.ir.elmikarbordiardakan.other.CustomTxtView
    android:layout_weight="5"
    android:layout_width="0dp"
    android:layout_height="fill_parent"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:text="100"
    android:gravity="right|center_vertical"
    android:id="@+id/txt_ghybtNumber_itm" />

<esfandune.ir.elmikarbordiardakan.other.CustomTxtView
        android:layout_weight="30"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="毓亘丕爻毓賱蹖 賲賱丕丨爻蹖賳蹖 丕乇丿讴丕賳蹖"
        android:gravity="right|center_vertical"
        android:id="@+id/txt_title_itm"
    android:layout_marginRight="10dp"
    />

<view
    android:layout_width="0dp"
    android:layout_height="fill_parent"
    android:layout_weight="10"
    class="de.hdodenhof.circleimageview.CircleImageView"
    android:id="@+id/view"
    android:src="@drawable/mmrdf"
   />
</LinearLayout>