private void sendMessageDelayed(Crouton crouton, Int64 messageId, long delay)
{
var message = ObtainMessage((int)messageId);
message.Obj = crouton;
SendMessageDelayed(message, delay);
}
public void RemoveCrouton(Crouton crouton)
{
var croutonView = crouton.GetView();
var croutonParentView = (ViewGroup)croutonView.Parent;
if (null == croutonParentView)
{
return;
}
croutonView.StartAnimation(crouton.GetOutAnimation());
// Remove the Crouton from the queue.
var removed = (Crouton)croutonQueue.Poll();
// Remove the crouton from the view's parent.
croutonParentView.RemoveView(croutonView);
if (null != removed)
{
removed.DetachActivity();
removed.OnRemoved();
removed.DetachLifecycleCallback();
}
// Send a message to display the next crouton but delay it by the out
// animation duration to Make sure it finishes
sendMessageDelayed(crouton, DISPLAY_CROUTON, crouton.GetOutAnimation().Duration);
}
private void sendMessage(Crouton crouton, int messageId)
{
var message = ObtainMessage(messageId);
message.Obj = crouton;
SendMessage(message);
}
private void callOnGlobalLayout(Crouton crouton, View croutonView)
{
var layoutListener = new GlobalLayoutListener();
layoutListener.OnGlobalLayout(delegate
{
if (Build.VERSION.SdkInt < BuildVersionCodes.JellyBean)
{
#pragma warning disable 618
croutonView?.ViewTreeObserver?.RemoveGlobalOnLayoutListener(layoutListener);
#pragma warning restore 618
}
else
{
croutonView?.ViewTreeObserver?.RemoveOnGlobalLayoutListener(layoutListener);
}
if (crouton.GetInAnimation() == null)
{
return;
}
croutonView?.StartAnimation(crouton.GetInAnimation());
AnnounceForAccessibilityCompat(crouton.GetActivity(), crouton.DataContext?.ToString() ?? "NULL");
sendMessageDelayed(crouton, REMOVE_CROUTON,
crouton.DurationInMilliseconds + crouton.GetInAnimation().Duration);
});
}
private void addCroutonToView(Crouton crouton)
{
// don't Add if it is already showing
if (crouton.IsShowing())
{
return;
}
var croutonView = crouton.GetView();
if (null == croutonView.Parent)
{
var parameters = croutonView.LayoutParameters ?? new ViewGroup.MarginLayoutParams(ViewGroup.LayoutParams.MatchParent,
ViewGroup.LayoutParams.WrapContent);
var activity = crouton.GetActivity();
if (null == activity || activity.IsFinishing)
{
return;
}
handleTranslucentActionBar((ViewGroup.MarginLayoutParams)parameters, activity);
handleActionBarOverlay((ViewGroup.MarginLayoutParams)parameters, activity);
activity.AddContentView(croutonView, parameters);
}
croutonView.RequestLayout(); // This is needed so the animation can use the measured with/height
var observer = croutonView.ViewTreeObserver;
if (null != observer)
{
callOnGlobalLayout(crouton, croutonView);
}
}
private long CalculateCroutonDuration(Crouton crouton)
{
long croutonDuration = crouton.DurationInMilliseconds;
croutonDuration += crouton.GetInAnimation().Duration;
croutonDuration += crouton.GetOutAnimation().Duration;
return(croutonDuration);
}
public Task <bool> Notify(ToastNotificationType type, string title, string description, TimeSpan duration, object context = null, bool clickable = true)
{
var taskCompletionSource = new TaskCompletionSource <bool>();
if (activity == null)
{
return(Task.FromResult(false));
}
var view = customRenderer.Render(activity, type, title, description, context);
var crouton = new Crouton(activity, view, (int)duration.TotalMilliseconds,
b =>
{
if (clickable)
{
taskCompletionSource.TrySetResult(b);
}
}, context);
crouton.Show();
return(taskCompletionSource.Task);
}
public void Add(Crouton crouton)
{
croutonQueue.Add(crouton);
displayCrouton();
}