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copied!<pre><code>public class ContactlistActivity extends Activity { String name; File file = null; String[] names = { ContactsContract.CommonDataKinds.Phone._ID, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME, ContactsContract.CommonDataKinds.Phone.NUMBER }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); try { File folder = new File(Environment.getExternalStorageDirectory()+ "/Application"); boolean var = false; if (!folder.exists()) var = folder.mkdir(); System.out.println("" + var); String filename = folder.toString() + "/Contact.csv"; FileWriter fw = new FileWriter(filename); fw.append("Name"); fw.append(','); fw.append("Number"); fw.append(','); fw.append('\n'); Cursor cur = getContentResolver().query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI,names,null,null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME+ " ASC"); if (cur.getCount() > 0) { while (cur.moveToNext()) { String id = cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID)); name = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)); String phoneno = cur.getString(cur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); String dataString = null; dataString = "\"" + name + "\",\"" + phoneno + "\""; fw.append("" + name); fw.append(','); fw.append("" + phoneno); fw.append(','); fw.append('\n'); } cur.close(); fw.close(); } } catch (Exception e) { // TODO: handle exception e.printStackTrace(); } } } </code></pre>

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