Question

I get my data out of my db with the following code:

private void fillData() {
        cursor = mDbAdapter.fetchAllSubjects();
        startManagingCursor(cursor);

        String[] from = new String[] { DatabaseAdapter.KEY_TITLE, DatabaseAdapter.KEY_LECTURER, DatabaseAdapter.KEY_BEGIN };
        int[] to = new int[] { R.id.title, R.id.lecturer, R.id.time };

        // Now create an array adapter and set it to display using our row
        SimpleCursorAdapter subjects = new SimpleCursorAdapter(this, R.layout.subject_row, cursor, from, to);

        setListAdapter(subjects);
    }

Now my problem is, that I want to add 3 other columns from my db and want to get the following:

• “(“+DatabaseAdapter.KEY_TYPE+”) “+DatabaseAdapter.KEY_TITLE
• DatabaseAdapter.KEY_LECTURER
• new Date(DatabaseAdapter.KEY_BEGIN)
• new Date(DatabaseAdapter.KEY_END)
  –> these two should be in one TextView in the way dd.MM. HH:mm (this is from BEGIN) – HH:mm (this is from END)

I don’t know how I’m able to do that – please help me 🙂

Answer 1

Ok I finally figured out what you really wanted.

Instead of using “SimpleCursorAdapter” directly, you can create your own Cursor adapter, inside which you can mainipulate the data as you want.
Create a new Adapter “SubjectsAdapter.java”. In this Adapter you will override the “bindView” and “newView”. This allows us to apply a view to the cursor. But before doing so, gives us the opportunity to change the data from the cursor.

This will give you an idea what has to be done.

    private void fillData() 
    {
        cursor = mDbAdapter.fetchAllSubjects();
        startManagingCursor(cursor);


        SubjectsAdapter subjectsAdapter = new SubjectsAdapter(this, cursor);
        setListAdapter(subjectsAdapter);
    }


//SubjectsAdapter.java - make changes to fix bugs/compilation errors. This is untested.
public class SubjectsAdapter extends ResourceCursorAdapter 
{
    public SubjectsAdapter(Context context, Cursor cur) {
        super(context, R.layout.subject_row, cur);
    }

    @Override
    public View newView(Context context, Cursor cur, ViewGroup parent) 
    {
         LayoutInflater li = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
         return li.inflate(R.layout.subject_row, parent, false);
    }

    @Override
    public void bindView(View view, Context context, Cursor cursor) 
    {           
        TextView titleText = (TextView)view.findViewById(R.id.title);
          titleText.setText(cursor.getString(cursor.getColumnIndex(DatabaseAdapter.KEY_TITLE)));

        //You can add code to retrieve other columns here.

        //This is where you retrieve the date in long format from cursor, convert it to a required format, and then using it.
        TextView beginTimeText = (TextView)view.findViewById(R.id.time);            
        Long lBeginDate = cursor.getLong(cursor.getColumnIndex(DatabaseAdapter.KEY_BEGIN));
        String sBeginDate = getFormattedDate(lBeginDate);           
        beginTimeText.setText(sBeginDate);
   }

    private String getFormattedDate(Long lDate)
    {
         SimpleDateFormat smdf = new SimpleDateFormat("MM/dd/yyyy h:mm:ss a");       
        String sDate = smdf.format( lDate ));
        return sDate;
    }
}