如何将Horizo​​ntal Recyclerview添加为Vertical Recyclerview的标题?

kha*_*eer 5 android android-recyclerview

预期的输出图像 我需要这样的输出.这是Horizo​​ntalRecyclerView作为VerticalRecyclerView的标头.

目前我正在使用NestedScrollView来实现这种设计.但我觉得滚动不顺畅.

请提出任何想法.提前致谢.

布局:

<android.support.v4.widget.NestedScrollView
    android:id="@+id/nsv_my_list"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:overScrollMode="ifContentScrolls"
    android:visibility="gone"
    android:clipChildren="true">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:paddingTop="15dp">

        <LinearLayout
            android:id="@+id/ll_continue_watching"
            android:layout_width="match_parent"
            android:layout_height="132dp"
            android:visibility="gone"
            android:orientation="vertical">

            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="29dp"
                android:gravity="center_vertical"
                android:paddingLeft="15dp"
                android:paddingRight="15dp">

                <customview.font.TextView
                    android:id="@+id/txt_edit_remove_btn"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentEnd="true"
                    android:layout_alignParentRight="true"
                    android:layout_centerVertical="true"
                    android:background="@drawable/btn_profile_edit"
                    android:gravity="center"
                    android:paddingTop="2dp"
                    android:text="EDIT"
                    android:textSize="10sp" />

                <customview.font.TextView
                    android:id="@+id/txt_continue_watchng"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentLeft="true"
                    android:layout_alignParentStart="true"
                    android:layout_centerVertical="true"
                    android:text="Continue watching"
                    android:textSize="12sp" />

            </RelativeLayout>

            <View
                android:layout_width="match_parent"
                android:layout_height="0.5dp"
                android:background="@color/horizontal_view_color" />

            <android.support.v7.widget.RecyclerView
                android:id="@+id/rv_horizontal_view"
                android:layout_width="match_parent"
                android:layout_height="102dp"
                android:paddingBottom="15dp"
                android:paddingTop="15dp" />

            <View
                android:layout_width="match_parent"
                android:layout_height="0.5dp"
                android:background="@color/horizontal_view_color" />
        </LinearLayout>

        <android.support.v7.widget.RecyclerView
            android:id="@+id/rv_vertical_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    </LinearLayout>
</android.support.v4.widget.NestedScrollView>
Run Code Online (Sandbox Code Playgroud)

kel*_*i92 0

非常简单,您的“主”回收器视图有两种单元格,第一种是另一个回收器视图,其余的是“正常”单元格。

在“主”回收器视图的适配器上,您必须重写 getItemViewType 方法,如下所示:

 @Override
    public int getItemViewType(int position) {
        if(postition == 0) {
            return 1; //Let's say that you define that 1 is the view type for the recycler view cell
        }
        else {
           return 2; //And 2 is going to be the "normal" cells
        }
    }
Run Code Online (Sandbox Code Playgroud)

然后,在 onCreateViewHolder 方法上,根据视图类型,您必须构建并返回正确的 viewHolder,如下所示:

    @Override
    public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
                                                   int viewType) {
        if(viewType == 1) {
             View v = LayoutInflater.from(parent.getContext())
                               .inflate(R.layout.your_other_recyclerview_layout, parent, false);
        //build the viewHolder
        ViewHolder vh = new YourOtherRecyclerViewHolder(v);
        return vh;
        }
        else {
            View v = LayoutInflater.from(parent.getContext())
                               .inflate(R.layout.your_normal_cell_layout, parent, false);
            //build the normal viewHolder
            YourNormalViewHolder vh = new YourNormalViewHolder (v);
            return vh;
        }

    }
Run Code Online (Sandbox Code Playgroud)

当然,您必须实现 2 个扩展 ViewHolder 类的类,一个用于 YourOtherRecyclerViewHolder,另一个用于 YourNormalViewHolder。

我希望它有帮助!