无法显示从SQLIte数据库中存储的列表中提取的数据

Question

我需要通过单击SQLite数据库中列表中的电子邮件来显示数据名称，移动设备和电子邮件。

这是我的听众：

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
  @Override
  public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
       email= (String) listView.getItemAtPosition(position);
       Intent intent = new 
              Intent(UserListActivity.this,DisplayActivity.class);
       intent.putExtra("Login_Info"," "+email);
       startActivity(intent);
        }
    });

DisplayActivity.java：

public class DisplayActivity extends AppCompatActivity {
ListView listView;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_display);
    String login_info = getIntent().getExtras().getString("Login_Info");
    DBHelper db = new DBHelper(DisplayActivity.this);
    ArrayList<String> displayUsersData = db.displayUsersData(login_info);
    ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(DisplayActivity.this,android.R.layout.simple_list_item_1,displayUsersData);
    listView = findViewById(R.id.listview_display);
    listView.setAdapter(arrayAdapter);
}

这是方法displayUsersData（email）：

public ArrayList<String> displayUsersData(String email){
    SQLiteDatabase db = getWritableDatabase();
    Cursor cursor = db.rawQuery("SELECT * FROM "+TABLE_NAME+" where "+COL_EMAIL+"='"+email+"'",null);
    cursor.moveToFirst();
    String emailId = cursor.getString(cursor.getColumnIndex(COL_EMAIL));
    String name = cursor.getString(cursor.getColumnIndex(COL_NAME));
    String mobile = cursor.getString(cursor.getColumnIndex(COL_MOBILE));
    ArrayList<String> data = new ArrayList<>();
    data.add(emailId);
    data.add(name);
    data.add(mobile);
    return data;

}