public DataGrid(ListViewCachingStrategy cachingStrategy)
{
InitializeComponent();
_sortingOrders = new Dictionary <int, SortingOrder>();
_listView = new ListView(cachingStrategy)
{
BackgroundColor = Color.Transparent,
ItemTemplate = new DataGridRowTemplateSelector(),
SeparatorVisibility = SeparatorVisibility.None,
};
_listView.ItemSelected += (s, e) => {
if (SelectionEnabled)
{
SelectedItem = _listView.SelectedItem;
}
else
{
_listView.SelectedItem = null;
}
ItemSelected?.Invoke(this, e);
};
_listView.Refreshing += (s, e) => {
Refreshing?.Invoke(this, e);
};
_listView.SetBinding(ListView.RowHeightProperty, new Binding("RowHeight", source: this));
Grid.SetRow(_listView, 1);
Children.Add(_listView);
}
public DataGrid()
{
InitializeComponent();
_sortingOrders = new Dictionary <int, SortingOrder>();
_listView.ItemSelected += (s, e) =>
{
if (SelectionEnabled)
{
SelectedItem = _listView.SelectedItem;
}
else
{
_listView.SelectedItem = null;
}
ItemSelected?.Invoke(this, e);
};
_listView.Refreshing += (s, e) =>
{
Refreshing?.Invoke(this, e);
};
}
public void Refresh()
{
App.Current.Dispatcher.Invoke(() =>
{
Refreshing?.Invoke(this, new EventArgs());
});
}
void BeginRefreshing(bool isPulledRefresh)
{
var currentIconGeometryY = _refreshIcon.Geometry.Y;
var contentDistanceDiff = _maximumDistance - currentIconGeometryY;
var _refreshIconBeginAnimation = new Animation(v => _refreshIcon.Move(_refreshIcon.Geometry.X, currentIconGeometryY + (int)v), 0, contentDistanceDiff, Easing.Linear);
_refreshIconBeginAnimation.Commit(this, "RefreshIconBegin", length: _animationLength);
_refreshState = RefreshState.Loading;
_isRefreshing = true;
_refreshIcon.IsRunning = true;
Refreshing?.Invoke(this, EventArgs.Empty);
}
public static void Do(IHomeContentGetter getter = null)
{
lock (_lock)
{
getter = getter ?? new RemoteXamlReader();
//开始刷新
Refreshing?.Invoke(null, new HomeContentRefreshingEventArgs());
//下载远端数据
if (!getter.TryGet(out object result))
{
App.Current.Dispatcher.Invoke(() =>
{
result = getter.Default();
});
}
//刷新完成
Refreshed?.Invoke(null, new HomeContentRefreshedEventArgs(result));
}
}
private void LvListView_Refreshing(object sender, EventArgs e)
{
Refreshing?.Invoke(this, e);
}
void OnRefreshing(EventArgs e) => Refreshing?.Invoke(this, e);
private void RaiseRefreshing()
{
IsRefreshing = true;
Refreshing?.Invoke(this, EventArgs.Empty);
}
internal static void OnRefreshing()
{
Refreshing?.Invoke(null, EventArgs.Empty);
}
