/// <summary>
/// Register providers from user settings, where they were previously saved.
/// </summary>
public async Task RestoreProviders()
{
// Load available IProvider types into memory
if (ProviderService.Available.Count == 0)
{
ProviderService.LoadProviders();
}
var tasks = new Dictionary <string, Task <bool> >();
// ToList() is needed because the original Dictionary is changing while we iterating
SettingsService.Current.SafeProviders
.ToList()
.ForEach(p => tasks[p.Key] = ProviderService.RegisterProvider(
ProviderService.GetProviderById(p.Value.Id), p.Key, p.Value.State, false));
// Wait for tasks to finish and remove unloaded providers
foreach (var task in tasks)
{
if (!ProviderService.Loaded.ContainsKey(task.Key) && !await task.Value)
{
ToastService.Create(string.Format(Resources.ProviderRegistrationFailed, task.Key));
ProviderService.ClearProvider(task.Key);
}
}
}