ContactManager.RequestStoreAsync()抛出System.UnauthorizedAccessException

Question

我试图在Windows 10 Universal apps API中使用ContactManager类.我试图在Windows 10桌面计算机上执行此操作.

我在尝试使用ContactManager.RequestStoreAsync()请求联系人列表时收到异常"System.UnauthorizedAccessException".

在以前的版本中,此功能仅适用于Windows Phone设备.微软文档说它现在需要一个Windows 10设备系列,但我没有运气.

using Windows.ApplicationModel.Contacts;

public async Task<List<String>> getContacts()
    {
        List<String> listResults = new List<string>();
        ContactStore store = null;
        IReadOnlyList<ContactList> list = null;
        ContactReader reader = null;
        ContactBatch batch = null;

        // *** This RequestStoreAsync() call is where the exception is thrown. All the cases below have the same issue. ***
        //store = await ContactManager.RequestStoreAsync(ContactStoreAccessType.AllContactsReadWrite);
        //store = await ContactManager.RequestStoreAsync(ContactStoreAccessType.AppContactsReadWrite);
        store = await ContactManager.RequestStoreAsync();

        list = await store.FindContactListsAsync();
        foreach (ContactList contactList in list)
        {
            reader = contactList.GetContactReader();
            batch = await reader.ReadBatchAsync();
            foreach (Contact contact in batch.Contacts)
            {
                listResults.Add(contact.Name);
            }
        }


        return listResults;
    }

Answer 1

好吧,我想我自己就找到了答案.看起来如果您手动将"联系人"功能添加到Package.appxmanifest文件,它将解决问题.

此功能没有UI选项.您必须以某种方式知道它存在,在文本编辑器中而不是在UI中编辑文件,并添加:

<uap:Capability Name="contacts" />