public async Task ExecuteActionAsync(Func <CancellationToken, Task> action, IView mainView = null, Action cancellationAction = null)
{
if (action == null)
{
throw new ArgumentNullException(nameof(action));
}
using var cts = new CancellationTokenSource();
void OnCancel()
{
cts.Cancel();
_loadingView.Hide();
}
try
{
_loadingView.OperationCancelled += OnCancel;
var activityTask = action(cts.Token);
var notifyDelayTask = Task.Delay(_options.Value.NotifyLoadingAfterMilliseconds);
var winner = await Task.WhenAny(activityTask, notifyDelayTask);
if (winner == notifyDelayTask)
{
if (mainView != null)
{
mainView.Enabled = false;
}
_loadingView.Show(mainView);
}
await activityTask;
}
catch (TaskCanceledException)
{
cancellationAction?.Invoke();
}
catch (Exception e)
{
_messageBoxPresenter.Show(mainView, $"Unexpected error occured: {e.Message}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
await Task.Delay(1, cts.Token);
cancellationAction?.Invoke();
}
finally
{
if (mainView != null)
{
mainView.Enabled = true;
}
_loadingView.OperationCancelled -= OnCancel;
_loadingView.Hide();
}
}
IEnumerator LoadNextScene(string sceneName)
{
if (mLoadingView != null)
{
yield return(StartCoroutine(mLoadingView.Show(mModel.GetLoadingTips())));
}
AsyncOperation op = SceneManager.LoadSceneAsync(sceneName);
op.allowSceneActivation = false;
while (op.progress < 0.9f)
{
yield return(new WaitForEndOfFrame());
}
// Allow the activation of the scene again.
op.allowSceneActivation = true;
while (!op.isDone)
{
yield return(new WaitForEndOfFrame());
}
if (mSceneController != null)
{
yield return(StartCoroutine(mSceneController.Init()));
}
if (mLoadingView != null)
{
yield return(StartCoroutine(mLoadingView.Hide()));
}
}
private void HideLoadingView()
{
loadingView?.Hide();
}