androidstudioでの問題が解決しません

前提・実現したいこと

保存機能の実装

発生している問題・エラーメッセージ

DBを読み込む際に
末尾のデータが
listviewに表示されない

SqlLoad.java

package com.example.innovation.f_featnote;

import android.app.Activity;
import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteException;
import android.database.sqlite.SQLiteOpenHelper;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.example.innovation.f_featnote.SubOpenHelper;
import com.example.innovation.f_featnote.MainActivity;

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

/**
 * Created by Innovation on 2017/01/26.
 */

public class SqlLoad extends Activity {
    ListView lv;
    static String[][] list;
    static String[] Did = new String[2];
    static long id_;
    static boolean[] flg;
    static String[] Data;
    private final int WC = ViewGroup.LayoutParams.WRAP_CONTENT;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.sql_load);
       // final boolean[] flg = new boolean[1];




        Main();
    }

    public void Main(){

        Data = SQLDataGet();
       // lv = new ListView(this);
    //    ArrayList<String> Data = new ArrayList<>(Arrays.asList(SQLDataGet()));
        lv = (ListView)findViewById(R.id.sql_load_main);
        ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_expandable_list_item_1, Data);
        lv.setAdapter(adapter);//リスト表示
     //   setContentView(lv,new ViewGroup.LayoutParams(WC,WC));

        lv.setOnItemClickListener(new AdapterView.OnItemClickListener(){
            @Override
            public void onItemClick(AdapterView<?> parent,View view,int position,long id){
                //  ListView listView = (ListView) parent;
                //   String item = (String)listView.getItemAtPosition(position);
                Log.d("id",""+id);
                id_ = id;
                SQLDContentGet();
                SQLDataSet();
                finish();
                // Toast.makeText(getApplicationContext(),item + "clicked",Toast.LENGTH_LONG).show();
            }
        });
    }





    public String[] SQLDataGet(){
        MainActivity main = new MainActivity();
        Context con = this;
        List ls = null;
        SQLiteDatabase sdb = main.SQLopen(con.getApplicationContext());//MainActivity参照
        final String[] columns = new String[]{"title","content","date"};//列名
        String where = null;//条件
        String[] Args = new String[]{""};//？の置き換え
        Cursor c = sdb.query("MemoContents", columns,where, null, null, null, null);
        int startPostion = c.getPosition();
        c.moveToFirst();
        Log.d("DBG",""+c.getCount());
        list = new String[c.getCount()-1][columns.length];
        String[] Dlist = new String[c.getCount()-1];
        for (int i = 0; i< list.length; i++){
            for (int j = 0; j < list[1].length; j++){
                list[i][j] = c.getString(j);
                Log.d(i+"-"+j,list[i][j]);//デバッグ
                Dlist[i] = list[i][0];
            }
            c.moveToNext();
        }
        c.moveToPosition(startPostion);

      //  finish();
        return Dlist;
    }

    public void SQLDContentGet(){
        Did[0] = list[(int)id_][0];
        Did[1] = list[(int)id_][1];
    }

    public void SQLDataSet(){
        Intent data = new Intent();
        Bundle bundle = new Bundle();
        data.putExtra("key.data",Did);
        data.putExtras(bundle);
        setResult(RESULT_OK,data);
        finish();
    }

    @Override
    public void finish() {
        super.finish();
    }
}