public DocumentListPage(string search, string selectedFolderName, string parentName, string updatePath)
{
ViewModel = new BaseViewModel {};
BindingContext = ViewModel;
_updatePath = updatePath;
_selectedFolderName = selectedFolderName;
Title = string.IsNullOrEmpty(parentName) ? "" : parentName;
_documentListView = new DocumentListView();
_documentListView.ItemTapped += async (sender, e) =>
{
try
{
if (CrossConnectivity.Current.IsConnected == false)
{
await DisplayAlert("Error", "Please check internet connectivity.", "OK");
return;
}
if (_documentListView.AcquireTapLock())
{
var selectedItem = (Document) e.Item;
if (!selectedItem.IsFolder)
{
int index = selectedItem.Name.LastIndexOf(".");
if (index > 0)
{
var fileExt = selectedItem.Name.Substring(index + 1);
if (ImageHelper.SuportedExtension.Contains(fileExt.ToLower()))
{
await
Navigation.PushAsync(new ContentPageXaml(selectedItem, _selectedFolderName,
this.Navigation));
}
else
{
await DisplayAlert("Error", "This file type is not suported for preview.", "OK");
}
}
else
{
await DisplayAlert("Error", "This file type is not suported for preview.", "OK");
}
}
else
{
string tempSelectedFolderName = selectedItem.Name;
string path = selectedItem.RelativePath + "/" + selectedItem.Name;
await
Navigation.PushAsync(
new DocumentListPage(path, tempSelectedFolderName, _selectedFolderName, path), true);
}
_documentListView.ReleaseTapLock();
((ListView) sender).SelectedItem = null;
}
}
catch (Exception ex)
{
DisplayAlert("Error", "An exception occurred.", "OK");
}
};
_documentListView.Refreshing += async (sender, e) =>
{
try
{
_documentListView.IsRefreshing = true;
lstDocuments = await Task.Run(() => GetUpdatedDocuments(search));
if (lstDocuments.Count > 0)
{
_documentListView.ItemsSource = null;
_documentListView.ItemsSource = lstDocuments;
}
}
catch (Exception ex)
{
if (ex.Message.ToUpper().Equals(Constants.INVALID_TOKEN_MSG.ToUpper()))
{
DisplayAlert("Error","Your session has expired,please relogin.", "OK");
Application.Current.MainPage = new LoginPage();
}
else
{
DisplayAlert("Error","An exception occurred.", "OK");
}
}
finally
{
_documentListView.EndRefresh();
_documentListView.IsRefreshing = false;
}
};
Content = GetDocumentPage(_documentListView, "");
Device.BeginInvokeOnMainThread(() => BindList(search));
}
private StackLayout GetDocumentPage(DocumentListView lsDocumentListView, string labelName)
{
_myLabel = new Label
{
Text = labelName,
FontSize = Device.GetNamedSize(NamedSize.Medium, typeof(Label)),
VerticalOptions = LayoutOptions.Center,
XAlign = TextAlignment.Center,
YAlign = TextAlignment.Center,
};
var activityIndicator = new ActivityIndicator
{
Color = Color.Black
};
activityIndicator.SetBinding(ActivityIndicator.IsVisibleProperty, "IsBusy");
activityIndicator.SetBinding(ActivityIndicator.IsRunningProperty, "IsBusy");
var stack = new StackLayout()
{
Children = {
_myLabel,
activityIndicator,
lsDocumentListView
}
};
return stack;
}