afficher les données de la base de données pour Android listView

Je suis en train d'essayer de montrer toutes mes données de ma base de données dans la liste

Code pour créer la base de données:

DataHander.java

package com.example.testingforstack;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class DataHandler {
public static final String NAME = "name";
public static final String EMAIL = "email";
public static final String TABLE_NAME = "mytable";
public static final String DATA_BASE_NAME = "mydatabase";
public static final int DATABASE_VERSION = 1;
public static final String TABLE_CREATE = "create table mytable (name text not null, email text not null);";
DataBaseHelper dbhelper;
Context ctx;
SQLiteDatabase db;
public DataHandler(Context ctx){
this.ctx = ctx;
dbhelper = new DataBaseHelper(ctx);
}
public static class DataBaseHelper extends SQLiteOpenHelper{
public DataBaseHelper(Context ctx) {
super(ctx, DATA_BASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db){
try{
db.execSQL(TABLE_CREATE);
}catch (SQLException e){
e.printStackTrace();
}
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion){
//db.execSQL("DROP TABLE IF EXISTS mytable");
onCreate(db);
}
}
public DataHandler open(){
db = dbhelper.getReadableDatabase();
return this;
}
public void close(){
dbhelper.close();
}
public long insertData(String name, String email){
ContentValues content = new ContentValues();
content.put(NAME, name);
content.put(EMAIL, email);
return db.insertOrThrow(TABLE_NAME, null, content);
}
public Cursor returnData(){
return db.query(TABLE_NAME, new String[] {NAME, EMAIL}, null, null, null, null, null); 
}
}

mainActivity.java

package com.example.testingforstack;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.database.Cursor;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends Activity {
Button save, load;
EditText name, email;
DataHandler handler;
String getName, getEmail;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
save = (Button) findViewById(R.id.save);
load = (Button) findViewById(R.id.load);
name = (EditText) findViewById(R.id.name);
email = (EditText) findViewById(R.id.email);
save.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//TODO Auto-generated method stub
String getName = name.getText().toString();
String getEmail = email.getText().toString();
handler = new DataHandler(getBaseContext());
handler.open();
long id = handler.insertData(getName, getEmail);
insertSuccess();
//Toast.makeText(getBaseContext(), "Data inserted", Toast.LENGTH_LONG).show();
handler.close();
}
});
load.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
getName = "";
getEmail = "";
handler = new DataHandler(getBaseContext());
handler.open();
Cursor C = handler.returnData();
if(C.moveToFirst()){
do{
getName = C.getString(0);
getEmail = C.getString(1);
}while(C.moveToNext());
}
handler.close();
loadSuccess();
//Toast.makeText(getBaseContext(), "Name: "+getName+", Email: "+getEmail, Toast.LENGTH_LONG).show();
}
});
}
public void insertSuccess()
{
AlertDialog.Builder insertData = new AlertDialog.Builder(this);
insertData.setTitle("Info");
insertData.setMessage("Data Inserted");
insertData.setNegativeButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int value) {
//TODO Auto-generated method stub
arg0.dismiss();
}
});
insertData.show();
}
public void loadSuccess()
{
AlertDialog.Builder loadData = new AlertDialog.Builder(this);
loadData.setTitle("Info");
loadData.setMessage("Name: "+getName+" & your email: "+getEmail);
loadData.setNegativeButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int value) {
//TODO Auto-generated method stub
arg0.dismiss();
}
});
loadData.show();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
//Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}

J'ai deux bouton save et load. J'ai mis en œuvre avec succès sur le bouton enregistrer pour enregistrer le nom d'utilisateur et e-mail. Cependant, je ne sais pas vraiment à charger les données dans la liste. Comment faire?