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optimize: keep filter opened while scrolling

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This commit is contained in:
Tsanie Lily 2020-05-17 11:51:51 +08:00
parent d85c825737
commit fb19f9b3f3
2 changed files with 19 additions and 2 deletions
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2
Pixiview/Illust/IllustCollectionPage.cs
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@ -614,7 +614,7 @@ namespace Pixiview.Illust
private double lastRefreshY = double.MinValue;
private double offset;
protected bool ScrollingDown(double y)
protected bool IsScrollingDown(double y)
{
return y > lastScrollY;
}

19
Pixiview/Illust/RankingPage.xaml.cs
View File

@ -86,6 +86,7 @@ namespace Pixiview.Illust
private bool previousEnabled;
private bool dateEnabled;
private bool nextEnabled;
private ScrollDirection scrollDirection = ScrollDirection.Stop;
private bool isFilterVisible;
private string lastQueryKey;
@ -229,6 +230,11 @@ namespace Pixiview.Illust
if (flag)
{
isFilterVisible = true;
if (scrollDirection == ScrollDirection.Down)
{
// stop the scrolling
await scrollView.ScrollToAsync(0, scrollView.ScrollY, false);
}
await Task.WhenAll(
labelCaret.RotateTo(180, easing: Easing.CubicOut),
gridFilter.TranslateTo(0, 0, easing: Easing.CubicOut),
@ -324,14 +330,25 @@ namespace Pixiview.Illust
private void ScrollView_Scrolled(object sender, ScrolledEventArgs e)
{
var y = e.ScrollY;
if (ScrollingDown(y))
if (IsScrollingDown(y))
{
if (scrollDirection != ScrollDirection.Down)
{
scrollDirection = ScrollDirection.Down;
}
// down
if (isFilterVisible)
{
ToggleFilterPanel(false);
}
}
else
{
if (scrollDirection != ScrollDirection.Up)
{
scrollDirection = ScrollDirection.Up;
}
}
OnScrolled(y);
}