private void AttachPageEvents(Element element)
{
var viewCell = BaseUIHelper.GetContainingViewCell(element);
if (viewCell != null)
{
viewCell.PropertyChanged += (s, ev) =>
{
var propertyName = ev.PropertyName;
var test = viewCell.BindingContext;
var test1 = Element.BindingContext;
var test2 = Control;
if (ev.PropertyName == "Renderer")
{
if (test == null || test1 == null)
{
return;
}
SetImageSource();
}
};
var listView = BaseUIHelper.GetContainingListView(element);
if (listView != null)
{
listView.PropertyChanged += (s, e) =>
{
if (e.PropertyName == "Renderer")
{
if (listView.Parent == null)
{
this.Dispose(true);
}
}
};
}
page = BaseUIHelper.GetContainingPage(element);
if (page == null)
{
var root = BaseUIHelper.GetRootElement(element);
root.PropertyChanged += (s, e) =>
{
if (e.PropertyName == "Parent")
{
AttachPageEvents(root);
}
};
return;
}
navigPage = BaseUIHelper.GetContainingNavigationPage(page);
if (navigPage != null)
{
navigPage.Popped += OnPagePopped;
}
}
}
private void AttachPageEvents(Xamarin.Forms.Element element)
{
var viewCell = BaseUIHelper.GetContainingViewCell(element);
if (viewCell != null)
{
viewCell.PropertyChanged += (s, ev) =>
{
var propertyName = ev.PropertyName;
};
var listView = BaseUIHelper.GetContainingListView(element);
if (listView != null)
{
listView.PropertyChanged += (s, e) =>
{
if (e.PropertyName == "Renderer")
{
if (listView.Parent == null)
{
this.Dispose(true);
}
}
};
}
page = BaseUIHelper.GetContainingPage(element);
if (page != null)
{
page.Disappearing += (s, ev) =>
{
//if (imageLoader != null)
{
//imageLoader.CancelDisplayTask(imageView);
}
};
}
if (page == null)
{
var root = BaseUIHelper.GetRootElement(element);
root.PropertyChanged += (s, e) =>
{
if (e.PropertyName == "Parent")
{
AttachPageEvents(root);
}
};
return;
}
// As of Xamarin.Forms 1.4+, image will be reused when moving from tabs.
// Uncomment this if using Xamarin.Forms < 1.4.
//if (page.Parent is TabbedPage)
//{
// page.Disappearing += PageContainedInTabbedPageDisapearing;
// return;
//}
navigPage = BaseUIHelper.GetContainingNavigationPage(page);
if (navigPage != null)
{
navigPage.Popped += OnPagePopped;
// As of Xamarin.Forms 1.4+, image will be reused when moving from tabs.
// Uncomment this if using Xamarin.Forms < 1.4.
//if (navigPage.Parent is TabbedPage)
//{
// navigPage.Disappearing += PageContainedInTabbedPageDisapearing;
//}
}
}
// As of Xamarin.Forms 1.4+, image will be reused when moving from tabs.
// Uncomment this if using Xamarin.Forms < 1.4.
//else if ((page = GetContainingTabbedPage(element)) != null)
//{
// page.Disappearing += PageContainedInTabbedPageDisapearing;
//}
}
