I have new hand on Android. I have made a report using ListView which is divided into three columns named DateTime, OnOffStatus, AlarmImage.
It work fine and looks good enough but now I want to export this table data to Excel format. Is it possible or not and how?
thanks in advance Om Parkash Kaushik
Start of by looking at http://poi.apache.org/ and http://poi.apache.org/spreadsheet/index.html I use this library to all of my excel reports.
Start of by creating a Workbook:
HSSFWorkbook workbook = new HSSFWorkbook();
Map<String, CellStyle> styles = createStyles(workbook);
HSSFSheet sheet = workbook.createSheet();
Setup some style:
private static Map<String, CellStyle> createStyles(Workbook wb) {
Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
CellStyle style;
Font monthFont = wb.createFont();
monthFont.setFontHeightInPoints((short) 11);
monthFont.setColor(IndexedColors.WHITE.getIndex());
style = wb.createCellStyle();
style.setAlignment(CellStyle.ALIGN_CENTER);
style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex());
style.setFillPattern(CellStyle.SOLID_FOREGROUND);
style.setFont(monthFont);
style.setWrapText(true);
styles.put("header", style);
style = wb.createCellStyle();
style.setAlignment(CellStyle.ALIGN_CENTER);
style.setWrapText(true);
style.setBorderRight(CellStyle.BORDER_NONE);
style.setBorderLeft(CellStyle.BORDER_NONE);
style.setBorderTop(CellStyle.BORDER_NONE);
style.setBorderBottom(CellStyle.BORDER_NONE);
styles.put("cell", style);
return styles;
}
Then setup a header row:
private static final String[] article_headers = {"header1", "header2"};
// Header row
Row headerRow = sheet.createRow(0);
headerRow.setHeightInPoints(40);
Cell headerCell;
for (int i = 0; i < article_headers.length; i++) {
headerCell = headerRow.createCell(i);
headerCell.setCellValue(article_headers[i]);
headerCell.setCellStyle(styles.get("header"));
}
And then you continue with the rows by setting their style and value.
Hope this helps and if you find this helpful, remember to accept.
// Jakob
