其实vcard格式并不复杂
下面是用output stream 输出一个简单的vcf
其实就是遵循某种约定的格式来输出成.vcf文件
格式大致如此:
BEGIN:VCARD
VERSION:x.x
[联系人信息] //如FN(全名)、TEL等等
END:VCARD
//query all contacts ResultSet results = DatabaseHelper.queryAll(state); try { byte[] begin = "BEGIN:VCARD".getBytes(); byte[] end = "END:VCARD".getBytes(); byte[] version = "VERSION:3.0".getBytes(); byte[] enter = "\r\n".getBytes(); // for each contact, write it into output stream as vCard format while (results.next()) { //write head os.write(begin); os.write(enter); os.write(version); os.write(enter); //write full name,use "FN:" os.write(("FN:" + results.getString("name")).getBytes()); os.write(enter); //write cell phone number if (results.getString("number") != null) { os.write(("TEL;CELL:" + results.getString("number")).getBytes()); os.write(enter); } os.write(end); os.write(enter); } os.flush(); os.close(); } catch (SQLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }