ICloudStorage.GetChildren() 从不 return

Question

我正在尝试使用以下代码访问 Google Drive with CloudRail。

// Actual string value removed.
private const string GDRIVE_CLIENT_ID = "client_id";
private const string ANDROID_PACKAGE_NAME = "package_name";
private const string CLOUDRAIL_APP_KEY = "app_key";
private readonly string REDIRECT_URL = $"{ANDROID_PACKAGE_NAME}:/oauth2redirect";

protected override void OnCreate(Bundle savedInstanceState)
{
    base.OnCreate(savedInstanceState);
    // Set CloudRail application key.
    CloudRail.AppKey = CLOUDRAIL_APP_KEY;

    // Set our view from the "main" layout resource
    SetContentView(Resource.Layout.Main);

    try
    {
        var googleDrive = new GoogleDrive(this, GDRIVE_CLIENT_ID, "", REDIRECT_URL, "state");
        googleDrive.UseAdvancedAuthentication();
        m_Service = googleDrive;

        Action act = () =>
        {
            var list = m_Service.GetChildren(@"/");
            // The function call never return.
        };
        var thread = new Thread(new ThreadStart(act));
        thread.Start();
    }
    catch (Exception ex)
    {
    }
}

调用 ICloudStorage.GetChildren() 后，我的应用程序被重定向到登录 Google 帐户。在用户登录到 Google 帐户并同意该应用程序后，函数调用永远不会 return。也没有发现异常。

哪里出了问题？

Answer 1

我收到了 CloudRail 支持团队的回复，并在他们的帮助下设法解决了这个问题。

You need to include the IntentFilter and LaunchMode to SingleTask on top of your activity. Also you need to put OnNewIntent method as shown below:

[Activity(Label = "Awesome.Android", LaunchMode = Android.Content.PM.LaunchMode.SingleTask)]
[IntentFilter(new[] { Intent.ActionView }, Categories = new[] { Intent.CategoryBrowsable, Intent.CategoryDefault }, DataScheme = "Android_Package_Name")]
public class MainActivity : Activity
{
    protected override void OnNewIntent(Intent intent)
    {
        CloudRail.AuthenticationResponse = intent;
        base.OnNewIntent(Intent);
    }
}

关键是对应的Activityclass（我这里是MainActivity）要用IntentFilter修饰。此外，必须覆盖 OnNewItent 并将响应传回覆盖中的 CloudRail.AuthenticationResponse。

我还发现android包名必须全小写，否则也不行

编辑 [2018.07.19]

Android包名必须至少包含一个句号(.)，否则可能会遇到invalid_request - missing authority错误。

ICloudStorage.GetChildren() 从不 return

ICloudStorage.GetChildren() never return

xamarin.android

google-drive-api

cloudrail