可以從收到的電話號碼中獲取ID，但不能從組中獲取ID

Question

我已經成功地從正在撥打的電話號碼中獲取ID和名稱。我想要查看的是該ID屬於哪個組。 我嘗試了以下方法：

    //Search for the information about the phone number, save the goupID(s)
    Uri uri = Uri.withAppendedPath(ContactsContract.PhoneLookup.CONTENT_FILTER_URI, Uri.encode(aNumber)); 
    ContentResolver cr = mService.getContentResolver();
    Cursor myCursor = cr.query(uri, new String[]{PhoneLookup._ID, PhoneLookup.DISPLAY_NAME},null, null, null);

    myCursor.moveToFirst();
    //String contactID = myCursor.getString(myCursor.getColumnIndex(PhoneLookup._ID)); 
    String contactID = myCursor.getString(myCursor.getColumnIndex(ContactsContract.Contacts._ID)); 
    myCursor.close();

    //Use the cursor to query for group with help of ID from the Phone look up
    myCursor = cr.query(ContactsContract.Groups.CONTENT_URI,
            new String[]{ContactsContract.Groups._ID},
            ContactsContract.Groups._ID + " = ?",
            new String[]{contactID}, 
            null);      

    //Contact may be in more than one group
    nbrOfGroups = myCursor.getCount(); 
    groupName = new String [nbrOfGroups];

問題是第二個查詢，我想使用在電話查找中找到的contactID來查看contacID屬於哪個組。 盡管聯系人已添加到我的聯系人中的一個組，但結果是沒有任何組。

有任何想法嗎？ :)

Answer 1

Groups._ID與聯系人ID不同，它是存儲所有組信息的表的索引。 獲得聯系人ID之后，您應該使用“組成員身份” mimetype從數據表中獲取該聯系人的所有組成員身份。

獲取組ID后，您可以查詢“組”表以獲取所有組的TITLE

嘗試使用此代碼

    //Search for the information about the phone number, save the goupID(s)
    Uri uri = Uri.withAppendedPath(ContactsContract.PhoneLookup.CONTENT_FILTER_URI, Uri.encode("123123")); 
    ContentResolver cr = this.getContentResolver();
    Cursor myCursor = cr.query(uri, new String[]{PhoneLookup._ID, PhoneLookup.DISPLAY_NAME},null, null, null);

    myCursor.moveToFirst();
    //String contactID = myCursor.getString(myCursor.getColumnIndex(PhoneLookup._ID)); 
    String contactID = myCursor.getString(myCursor.getColumnIndex(ContactsContract.Contacts._ID)); 
    myCursor.close();

    //Use the cursor to query for group with help of contact ID from the Phone look up
    myCursor = cr.query(ContactsContract.Data.CONTENT_URI,
            new String[]{ContactsContract.Data.CONTACT_ID, 
            ContactsContract.CommonDataKinds.GroupMembership.GROUP_ROW_ID},
            ContactsContract.Data.CONTACT_ID + " = ? " + 
            Data.MIMETYPE + "='" + ContactsContract.CommonDataKinds.GroupMembership.CONTENT_ITEM_TYPE + "'",
            new String[]{contactID}, 
            null);      

    //Contact may be in more than one group
    int nbrOfGroups = myCursor.getCount();
    int[] groupIds = new int[nbrOfGroups];
    int index = 0;

    // unfortunately group names are stored in Groups table
    // so we need to query again
    if (myCursor.moveToFirst()) {
        do {
            groupIds[index] = myCursor.getInt(1); // Group_row_id column
        } while (myCursor.moveToNext());
    }

    myCursor.close();

    // construct the selection
    StringBuffer sb = new StringBuffer();
    for (int i = 0; i < nbrOfGroups; i++) {
        if (i != 0) {
            sb.append(",");
        }

        sb.append(groupIds[i]);
    }

    String[] groupName = new String [nbrOfGroups];
    myCursor = cr.query(ContactsContract.Groups.CONTENT_URI,
            new String[]{ContactsContract.Groups.TITLE},
            ContactsContract.Groups._ID + " IN (" + sb.toString() + ")",
            null, null);

    // finally got the names
    if (myCursor.moveToFirst()) {
        do {
            groupName[index] = myCursor.getString(0); // Group_row_id column
        } while (myCursor.moveToNext());
    }

    myCursor.close();