使用Xamarin.Mobile访问联系人列表xamarin.form的权限被拒绝

Question

大家好，我正在使用Xamarin.Mobile，但是权限被拒绝了，我已经在AndroidManifest中添加了READ_CONTACTS，并在运行时添加了权限。如何解决这个问题？

方法

    public async Task<IEnumerable<MobileUserContact>> GetAllContacts()
    {
        if (_contacts != null) return _contacts;

        var contacts = new List<MobileUserContact>();
        await _book.RequestPermission().ContinueWith(t =>
        {
            if (!t.Result)
            {
                Log.Debug("PERM", "Permission Denied!");
                return;
            }
            foreach (var contact in _book.Where(c => c.Emails.Any())) // Filtering the Contact's that has E-Mail addresses
            {
                var firstOrDefault = contact.Emails.FirstOrDefault();
                if (firstOrDefault != null)
                {
                    contacts.Add(new MobileUserContact()
                    {
                        ContactFirstName = contact.FirstName,
                        ContactLastName = contact.LastName,
                        ContactDisplayName = contact.DisplayName,
                        ContactEmailId = firstOrDefault.Address,
                        ContactNumber = contact.Phones.ToString()
                    });
                }
            }
        });

        _contacts = (from c in contacts orderby c.ContactFirstName select c).ToList();
        return _contacts;
    }

Answer 1

看起来你没有请求用户权限来访问他们的联系人。

看看这里：https://github.com/jamesmontemagno/PermissionsPlugin和我也建议使用这个：https://github.com/jamesmontemagno/Xamarin.Plugins/tree/master/Contacts