習作、Android、RecyclerCardView、部分抜粋

Frg_list.java

package org.example.gist.kawakami.sample.recyclercard;

import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.util.SparseArrayCompat;
import android.support.v7.widget.CardView;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by y-kawakami on 2017/01/04.
 *
 *  内部クラスで固めて書いちゃった。
 *  本当は個別に書き出すべきなのだろうけれど、まあいいかなって。
 */

public class Frg_list extends Fragment
{
    RecyclerView               mRecyclerView;
    RecyclerView.Adapter       mAdapter;
    RecyclerView.LayoutManager mLayoutManager;

    List<MyData>              mCurrentData;
    SparseArrayCompat<String> mHeaders;


    @Override
    public View onCreateView(LayoutInflater layoutInflater, ViewGroup viewGroup, Bundle savedInstanceState)
    {
        return layoutInflater.inflate(R.layout.view_list, null);
    }



    @Override
    public void onActivityCreated(Bundle savedInstanceState)
    {
        super.onActivityCreated(savedInstanceState);
        mRecyclerView = (RecyclerView) getActivity().findViewById(R.id.recycler_view);

        // use this setting to improve performance if you know that changes
        // in content do not change the layout size of the RecyclerView
        // 妙訳：リストの大きさがデータによって変わらない場合は true に設定することで
        // パフォーマンスが改善される。
        mRecyclerView.setHasFixedSize(true);

        // 利用可能なのは以下の三種類
        //
        // - LinearLayoutManager
        // - GridLayoutManager
        // - StaggeredGridLayoutManager
        //
        mRecyclerView.setLayoutManager(mLayoutManager = new LinearLayoutManager(getActivity()));



        // mAllData は何かしらの方法で取得して下さい。ここでは雑に親アクティビティのものを参照している
        boolean hasNoData = (MainActivity.mAllData == null || MainActivity.mAllData.size() <= 0);
        if(hasNoData)
        {
            // リストアクティビティ的に no item の表示がしたい（本件的には余計な処理）
            mRecyclerView.setVisibility(View.GONE);

            LinearLayout ll = (LinearLayout) getActivity().findViewById(R.id.not_found);
            ll.setVisibility(View.VISIBLE);

            return;
        }


        int start                  = 1;
        int end                    = MainActivity.mAllData.size();
        List<List<Object>> subList = MainActivity.mAllData.subList(start, end);


        mHeaders     = genHeaders(MainActivity.mAllData.get(0));
        mCurrentData = genList(subList);


        mAdapter = new RecyclerCardAdapter(getActivity(), mCurrentData);
        mRecyclerView.setAdapter(mAdapter);
    }


    /**
     *
     * @param data
     * @return
     */
    SparseArrayCompat<String> genHeaders(List<Object> data)
    {
        SparseArrayCompat<String> value = new SparseArrayCompat<String>();

        int i = 0;
        for(Object row : data)
        {
            value.put(i++, row.toString());
        }

        return value;
    }


    /**
     *
     * @param lists
     * @return
     */
    public List<MyData> genList(List<List<Object>> lists)
    {
        ArrayList<MyData> al = new ArrayList<MyData>();
        for(List<Object> list : lists)
        {
            al.add(new MyData(list));
        }
        return al;
    }




    /* --- 内部クラス -------------------------------------------------- */

    class MyData
    {

        String company_name;
        String ae_name;

        public MyData(List<Object> list)
        {
            for(int i=0; i < mHeaders.size(); i++)
            {
                String s = list.get(i).toString();
                switch(i)
                {
                    case 0: company_name = s; break;
                    case 1: ae_name      = s; break;
                }
            }
        }

        public String getCompany_name() { return company_name;}
        public String getAe_name()      { return ae_name;}

        public void setCompany_name(String company_name) { this.company_name = company_name;}
        public void setAe_name(String ae_name)           { this.ae_name      = ae_name;}
    }




    /* --- 内部クラス -------------------------------------------------- */

    class RecyclerCardViewHolder extends RecyclerView.ViewHolder
    {
        CardView cardView;
        TextView company_name;
        TextView ae_name;

        public RecyclerCardViewHolder(View itemView)
        {
            super(itemView);
            cardView     = (CardView) itemView.findViewById(R.id.card_view);
            company_name = (TextView) itemView.findViewById(R.id.company_name);
            ae_name      = (TextView) itemView.findViewById(R.id.ae_name);
        }
    }




    /* --- 内部クラス -------------------------------------------------- */

    class RecyclerCardAdapter extends RecyclerView.Adapter<RecyclerCardViewHolder>
    {
        Context context;
        List<MyData> list;

        RecyclerCardAdapter(Context context, List<MyData> list)
        {
            super();
            this.context = context;
            this.list    = list;
        }


        @Override
        public RecyclerCardViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
        {
            LayoutInflater li = LayoutInflater.from(parent.getContext());
            View v =li.inflate(R.layout.row, parent, false);
            RecyclerCardViewHolder vh = new RecyclerCardViewHolder(v);
            return vh;
        }


        @Override
        public void onBindViewHolder(RecyclerCardViewHolder holder, int position)
        {
            holder.company_name.setText(list.get(position).getCompany_name());
            holder.ae_name.setText(list.get(position).getAe_name());
        }


        @Override
        public int getItemCount()
        {
            return list.size();
        }
    }
}

not_found.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/not_found"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:gravity="center_horizontal"
    android:orientation="vertical"
    android:visibility="gone">

    <ImageView
        android:layout_width="328px"
        android:layout_height="400px"
        android:background="?android:attr/panelBackground"
        android:src="@drawable/not_found" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingTop="@dimen/activity_vertical_margin"
        android:text="@string/list_not_found" />
</LinearLayout>

row.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/card_view"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:cardCornerRadius="0dp"
    android:layout_marginBottom="2sp"
    android:layout_marginLeft="@dimen/activity_horizontal_margin"
    android:layout_marginRight="@dimen/activity_horizontal_margin"
    app:cardUseCompatPadding="true">


    <LinearLayout
        android:id="@+id/card_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="@dimen/activity_vertical_margin"
        android:layout_marginBottom="@dimen/activity_vertical_margin"
        android:layout_marginLeft="@dimen/activity_horizontal_margin"
        android:layout_marginRight="@dimen/activity_horizontal_margin"
        android:orientation="vertical">

        <TextView
            android:id="@+id/company_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="COM" />

        <TextView
            android:id="@+id/ae_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingTop="6sp"
            android:text="name"
            android:textSize="18sp" />

    </LinearLayout>
</android.support.v7.widget.CardView>

view_list.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentStart="true"
        android:layout_marginTop="@dimen/activity_vertical_margin"/>

    <include
        layout="@layout/not_found"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true" />

</RelativeLayout>