private async void OnDrag(object sender, PanUpdatedEventArgs e)
{
if (!m_sheetBehaviour.IsDraggable)
{
return;
}
if (m_newY == 0)
{
m_newY = SheetFrame.TranslationY; //This variable is used to fix a iOS issue where an view element that you have a pan gesture on it and that is translating the same view element jitters
}
switch (e.StatusType)
{
case GestureStatus.Started:
m_sheetBehaviour.IsDragging = true;
break;
case GestureStatus.Running:
var translationY = Device.RuntimePlatform == Device.Android ? OuterSheetFrame.TranslationY : m_newY;
m_newYTranslation = e.TotalY + translationY;
//Hack to remove jitter from android
if (Device.RuntimePlatform == Device.Android)
{
e = new PanUpdatedEventArgs(e.StatusType, e.GestureId, 0, m_newYTranslation);
m_newYTranslation = e.TotalY;
}
break;
case GestureStatus.Completed:
m_sheetBehaviour.IsDragging = false;
//Snap?
break;
case GestureStatus.Canceled:
m_sheetBehaviour.IsDragging = false;
break;
default:
throw new ArgumentOutOfRangeException();
}
if (e.StatusType != GestureStatus.Started)
{
await m_sheetBehaviour.UpdatePosition(m_newYTranslation);
if (e.StatusType == GestureStatus.Completed) //Makes sure the jitter is removed on iOS
{
m_newY = SheetFrame.TranslationY;
}
}
}
private void OnDrag(object sender, PanUpdatedEventArgs e)
{
if (!m_sheetBehaviour.IsDraggable)
{
return;
}
if (m_newY == 0)
{
m_newY = SheetFrame.TranslationY;
}
switch (e.StatusType)
{
case GestureStatus.Started:
m_sheetBehaviour.IsDragging = true;
break;
case GestureStatus.Running:
var translationY = (Device.RuntimePlatform == Device.Android) ? OuterSheetFrame.TranslationY : m_newY;
var newYTranslation = e.TotalY + translationY;
//Hack to remove jitter from android
if (Device.RuntimePlatform == Device.Android)
{
e = new PanUpdatedEventArgs(e.StatusType, e.GestureId, 0, newYTranslation);
newYTranslation = e.TotalY;
}
m_sheetBehaviour.UpdatePosition(newYTranslation);
break;
case GestureStatus.Completed:
m_newY = SheetFrame.TranslationY;
m_sheetBehaviour.IsDragging = false;
//Snap?
break;
case GestureStatus.Canceled:
m_sheetBehaviour.IsDragging = false;
break;
default:
throw new ArgumentOutOfRangeException();
}
}