【发布时间】:2016-11-11 18:47:52
【问题描述】:
我正在将 Onedrive SDK 与我的 Xamarin 应用程序的 UWP 部分集成。一旦我按下下载按钮,我会得到 Onedrive 登录页面,但它会在此行中引发上述错误:
try
{
var appFolder = await OneDriveClient.Drive.Special.AppRoot.Request().GetAsync();
Debug.WriteLine(appFolder.Name);
}
catch (ServiceException e )
{
Debug.WriteLine(e.Message +" " + e.Error.Code);
}
这里是完整的相关代码:
public async Task Download(string filename)
{
//AccountSelectionLoaded();
await InitializeClient();
try
{
var appFolder = await OneDriveClient.Drive.Special.AppRoot.Request().GetAsync();
Debug.WriteLine(appFolder.Name);
}
catch (ServiceException e )
{
Debug.WriteLine(e.Message +" " + e.Error.Code);
}
var file = await OneDriveClient.Drive.Special.AppRoot.Children[filename].Content.Request().GetAsync();
//var fileStream = await fileBuilder.Content.Request().GetAsync();
IStorageFile appFile = await ApplicationData.Current.LocalFolder.CreateFileAsync("test.db3",
CreationCollisionOption.OpenIfExists);
byte[] fileBytes;
using (DataReader reader = new DataReader(file.AsInputStream()))
{
fileBytes = new byte[file.Length];
await reader.LoadAsync((uint)file.Length);
reader.ReadBytes(fileBytes);
}
Debug.WriteLine(fileBytes.Length);
Debug.WriteLine("Writing");
await FileIO.WriteBytesAsync(appFile, fileBytes);
Debug.WriteLine("End of writing");
}
private async Task InitializeClient()
{
if (OneDriveClient == null)
{
Task authTask;
var msaAuthProvider = new MsaAuthenticationProvider(oneDriveConsumerClientId,oneDriveConsumerReturnUrl,scopes);
await msaAuthProvider.AuthenticateUserAsync();
OneDriveClient = new OneDriveClient(oneDriveConsumerBaseUrl, msaAuthProvider);
AuthenticationProvider = msaAuthProvider;
}
}
【问题讨论】:
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有什么更新吗?你检查我的答案了吗?
标签: xamarin.forms uwp microsoft-graph-api onedrive