ContactManager.RequestStoreAsync() 抛出 System.UnauthorizedAccessException

ContactManager.RequestStoreAsync() throws System.UnauthorizedAccessException(ContactManager.RequestStoreAsync() 抛出 System.UnauthorizedAccessException)

问题描述

我正在尝试在 Windows 10 通用应用程序 API 中使用 ContactManager 类.我正在尝试在 Windows 10 桌面计算机上执行此操作.

I am trying to use the ContactManager class in the Windows 10 Universal apps API. I am trying to do this on a Windows 10 Desktop machine.

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

I am receiving an exception, "System.UnauthorizedAccessException" when trying to request a list of contacts using ContactManager.RequestStoreAsync().

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

In previous versions, this function only worked on Windows Phone devices. The Microsoft documentation just says it requires a Windows 10 Device family now, but I'm not having any luck.

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;
    }

推荐答案

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

Alright, I think I discovered the answer on my own. Looks like if you add the "contacts" capability to the Package.appxmanifest file manually, it will fix the issue.

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

There is no UI option for this capability. You have to somehow know it exists, edit the file in a text editor instead of in the UI, and add:

<uap:Capability Name="contacts" />

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