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A RecyclerView嵌套在一个 CardView.我试图打电话addItemDecoration()添加分频器RecycylerView,但它没有用.

<android.support.v7.widget.CardView xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    card_view:cardBackgroundColor="@color/white_color"
    android:layout_marginLeft="10dp"
    android:layout_marginRight="10dp"
    card_view:cardElevation="3dp">

    <android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swipe_saleproduct_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recycler_saleproduct_list"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_centerHorizontal="true"
            android:layout_centerVertical="true"
            android:visibility="visible" />

    </android.support.v4.widget.SwipeRefreshLayout>
</android.support.v7.widget.CardView>

java代码:

    mSwipe = (SwipeRefreshLayout)view.findViewById(R.id.swipe_saleproduct_list);
    mRecyclerView= (RecyclerView) view.findViewById(R.id.recycler_saleproduct_list);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(UIUtils.getContext()));
    mRecyclerView.addItemDecoration(new DividerItemDecoration(UIUtils.getContext(), DividerItemDecoration.VERTICAL_LIST));
    SaleProductListAdapter saleProductListAdapter = new SaleProductListAdapter(UIUtils.getContext(), mRecyclerView, list, mSwipe);
    mRecyclerView.setAdapter(saleProductListAdapter);