如何使用Xamarin / C＃获取Android设备所有者的用户个人资料数据

Question

我正在构建适用于Android 4.0（Ice Cream Sandwich）及更高版本的应用，并希望获得设备所有者的用户个人资料信息，例如：

DisplayName，电子邮件，电话，职位，公司，办公地点，网站和网址

我尝试过不同的Stackoverflow帖子中的不同方法，包括访问手机的帐户查询用户个人资料（ContactsContract.Profile.ContentUri）。没有骰子。我已经检查了ReadOwnerData和ReadProfile的权限。

现在我正在使用此代码查询“联系人”，但托管查询的返回值为0.

var c = act.ManagedQuery (ContactsContract.Profile.ContentUri, null, null, null, null);
int count = c.Count;
string[] columnNames = c.GetColumnNames();
bool b = c.MoveToFirst();
int position = c.Position;
if (position == 0) {
    do {
        for (int j = 0; j < columnNames.Length; j++) {
            string columnName = columnNames[j];
            try {
                string columnValue = c.GetString(c.GetColumnIndex(columnName));
            } catch {}
            if (c.GetString(c.GetColumnIndex("is_user_profile")) == "1") {
                if (c.GetString(c.GetColumnIndex("has_email")) == "1") {
                    //var cEmail = ManagedQuery (ContactsContract.Data.ContentUri, null, ContactsContract.Data.InterfaceConsts.HasPhoneNumber + "!=0 AND (" + ContactsContract.Data.InterfaceConsts.Mimetype + "=? OR " + ContactsContract.Data.InterfaceConsts.Mimetype + "=?)", new String[]{ ContactsContract.CommonDataKinds.Email.ContentItemType, ContactsContract.CommonDataKinds.Phone.ContentItemType, ContactsContract.Contacts.InterfaceConsts.Id }, null);
                    var cEmail = act.ManagedQuery (ContactsContract.CommonDataKinds.Email.ContentUri, null, ContactsContract.CommonDataKinds.Email.InterfaceConsts.Type + " = ?", new String[]{ c.GetString(c.GetColumnIndex(BaseColumns.Id)) }, null);
                    string[] columnNamesEmail = cEmail.GetColumnNames();
                    if (cEmail.Count > 0) {
                        cEmail.MoveToFirst();
                        do {
                            sEmail = cEmail.GetString(cEmail.GetColumnIndex(ContactsContract.CommonDataKinds.Email.InterfaceConsts.Type));
                            //sEmail = cEmail.GetString(cEmail.GetColumnIndex(ContactsContract.CommonDataKinds.Email.InterfaceConsts.Data));
                            //sEmail = cEmail.GetString(cEmail.GetColumnIndex(ContactsContract.CommonDataKinds.Email.InterfaceConsts.ContactId));
                        } while (cEmail.MoveToNext());
                    }
                    cEmail.Close();
                }
                if (c.GetString(c.GetColumnIndex("has_phone_number")) == "1") {
                    var cPhone = act.ManagedQuery (ContactsContract.CommonDataKinds.Phone.ContentUri, null, ContactsContract.CommonDataKinds.Phone.InterfaceConsts.ContactId + " = ?", new String[]{ c.GetString(c.GetColumnIndex(BaseColumns.Id)) }, null);
                    string[] columnNamesPhone = cPhone.GetColumnNames();
                    if (cPhone.Count > 0) {
                        cPhone.MoveToFirst();
                        do {
                            sPhone = cPhone.GetString(cPhone.GetColumnIndex(ContactsContract.CommonDataKinds.Phone.InterfaceConsts.Type));
                        } while (cPhone.MoveToNext());
                    }
                    cPhone.Close();
                }
            }
        }
    } while (c.MoveToNext());
}
c.Close();

这部分代码返回0：

if (cEmail.Count > 0) {

有人可以指出我如何重写这个查询吗？

var cEmail = act.ManagedQuery (ContactsContract.CommonDataKinds.Email.ContentUri, null, ContactsContract.CommonDataKinds.Email.InterfaceConsts.Type + " = ?", new String[]{ c.GetString(c.GetColumnIndex(BaseColumns.Id)) }, null);

或者我应该回去查询用户个人资料或帐户？这是我为他们使用的代码：

账户：

Account[] accounts = AccountManager.Get (Context).GetAccounts ();
foreach (Account acc in accounts) {
    --- can only get DisplayName and ID
}

用户个人资料：

var uri = ContactsContract.Profile.ContentUri;

string[] projection = { 
    ContactsContract.CommonDataKinds.StructuredName.DisplayName, 
    ContactsContract.CommonDataKinds.Email.Address,
    ContactsContract.CommonDataKinds.Phone.Number,
    ContactsContract.CommonDataKinds.Organization.Title,
    ContactsContract.CommonDataKinds.Organization.Company,
    ContactsContract.CommonDataKinds.Organization.OfficeLocation,
    ContactsContract.CommonDataKinds.Website.Url };

var cursor = ManagedQuery (uri, projection, null, null, null);

if (cursor.MoveToFirst ()) {
    do {
        sDisplayName = cursor.GetString (cursor.GetColumnIndex (projection [0]));
        sEmail = cursor.GetString (cursor.GetColumnIndex (projection [1]));
        sPhone = cursor.GetString (cursor.GetColumnIndex (projection [2]));
        sTitle = cursor.GetString (cursor.GetColumnIndex (projection [3]));
        sCompany = cursor.GetString (cursor.GetColumnIndex (projection [4]));
        sOfficeLocation = cursor.GetString (cursor.GetColumnIndex (projection [5]));
        sWebsite = cursor.GetString (cursor.GetColumnIndex (projection [6]));


    } while (cursor.MoveToNext());
}