Dynamically add a row of data, the table does not change about tablefixheaders HOT 3 CLOSED

           int rowCount = 20;
           int columnCount = 10;

    @Override
    public int getRowCount() {
        return rowCount;
    }

    @Override
    public int getColumnCount() {
        return columnCount;
    }


    Button btn = (Button) findViewById(R.id.button1);
    btn.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View view) {
            rowCount++;
            adapter.notifyDataSetChanged();
        }

    });