/// <summary>
/// ネットワーク状態等の確認
/// </summary>
private async void Check()
{
await Task.Run(() =>
{
this.IsInternetOnline = CommonMethods.CheckInternetConnectEnabled();
this.IsTwitterOnline = CommonMethods.CheckTwitterConnectEnabled();
});
this.IsOnline = this.IsInternetOnline && this.IsTwitterOnline;
}