内容提供器的用法

 1 // 查询联系人数据
 2 cursor = getContentResolver().query(
 3 ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
 4 null, null, null, null);
 5 while (cursor.moveToNext()) {
 6 // 获取联系人姓名
 7 String displayName = cursor.getString(cursor.getColumnIndex(
 8 ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
 9 // 获取联系人手机号
10 String number = cursor.getString(cursor.getColumnIndex(
11 ContactsContract.CommonDataKinds.Phone.NUMBER));
12 }