android 中獲取聯系人

ContentResolver cr = getContentResolver();
        Cursor cursor = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
        while(cursor.moveToNext()){
         //get name
         int nameFiledColumnIndex = cursor.getColumnIndex(PhoneLookup.DISPLAY_NAME);
         String contact = cursor.getString(nameFiledColumnIndex);
         
            String[] PHONES_PROJECTION = new String[] { "_id","display_name","data1","data3"};//
            String contactId = cursor.getString(cursor.getColumnIndex(PhoneLookup._ID));
            Cursor phone = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, PHONES_PROJECTION,
                                    ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + contactId, null, null);
            //name type ..
            while(phone.moveToNext()) {
             int i = phone.getInt(0);
             String str = phone.getString(1);
             str = phone.getString(2);
             str = phone.getString(3);
            }
            phone.close();
            //addr
            Cursor addrCur = cr.query(ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_URI ,
        new String[]{"_id","data1","data2","data3"}, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + contactId , null, null);
            while(addrCur.moveToNext()) {
             int i = addrCur.getInt(0);
             String str = addrCur.getString(1);
             str = addrCur.getString(2);
             str = addrCur.getString(3);
            }
            addrCur.close();
           
            //email
            Cursor emailCur = cr.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI ,
        new String[]{"_id","data1","data2","data3"}, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + contactId , null, null);
            while(emailCur.moveToNext()) {
             int i = emailCur.getInt(0);
             String str = emailCur.getString(1);
             str = emailCur.getString(2);
             str = emailCur.getString(3);
            }
            emailCur.close();
           
        }
        cursor.close();

android中獲取通話記錄
String str = "";
        int type;
        long callTime;
        Date date;
        String time= "";
        ContentResolver cr = getContentResolver();
        final Cursor cursor = cr.query(CallLog.Calls.CONTENT_URI, new String[]{CallLog.Calls.NUMBER,CallLog.Calls.CACHED_NAME,CallLog.Calls.TYPE, CallLog.Calls.DATE}, null, null,CallLog.Calls.DEFAULT_SORT_ORDER);
        for (int i = 0; i < cursor.getCount(); i++) {  
            cursor.moveToPosition(i);
            str = cursor.getString(0);
            str = cursor.getString(1);
            type = cursor.getInt(2);
            SimpleDateFormat sfd = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
            date = new Date(Long.parseLong(cursor.getString(3)));
            time = sfd.format(date);
           }