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using System;
using Xamarin.Forms.CustomAttributes;
using Xamarin.Forms.Internals;
#if UITEST
using Xamarin.UITest;
using NUnit.Framework;
#endif
namespace Xamarin.Forms.Controls.Issues
{
[Preserve(AllMembers = true)]
[Issue(IssueTracker.Bugzilla, 41415, "ScrollX and ScrollY values are not consistent with iOS", PlatformAffected.Android)]
public class Bugzilla41415 : TestContentPage
{
const string ButtonText = "Click Me";
float _x, _y;
bool _didXChange, _didYChange;
protected override void Init()
{
var grid = new Grid
{
BackgroundColor = Color.Yellow,
WidthRequest = 1000,
HeightRequest = 1000,
Children =
{
new BoxView
{
WidthRequest = 200,
HeightRequest = 200,
BackgroundColor = Color.Red,
HorizontalOptions = LayoutOptions.Center,
VerticalOptions = LayoutOptions.Center
}
}
};
var labelx = new Label();
var labely = new Label();
var labelz = new Label();
var labela = new Label();
var scrollView = new ScrollView
{
Orientation = ScrollOrientation.Both,
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
scrollView.Content = grid;
scrollView.Scrolled += (sender, args) =>
{
labelx.Text = $"x: {(int)Math.Round(args.ScrollX)}";
labely.Text = $"y: {(int)Math.Round(args.ScrollY)}";
// first and second taps
if (_x == 0)
{
if (args.ScrollX != 0 && args.ScrollX != 100)
_didXChange = true;
if (args.ScrollY != 0 && args.ScrollY != 100)
_didYChange = true;
}
else if (_x == 100)
{
if (args.ScrollX != _x && args.ScrollX != _x + 100)
_didXChange = true;
if (args.ScrollY != 100)
_didYChange = true;
}
labelz.Text = "z: " + _didXChange.ToString();
labela.Text = "a: " + _didYChange.ToString();
};
var button = new Button { Text = ButtonText };
button.Clicked += async (sender, e) =>
{
// reset
labelx.Text = null;
labely.Text = null;
labelz.Text = null;
labela.Text = null;
_didXChange = false;
_didYChange = false;
await scrollView.ScrollToAsync(_x + 100, _y + 100, true);
_x = 100;
};
Content = new StackLayout { Children = { button, labelx, labely, labelz, labela, scrollView } };
}
#if UITEST && __ANDROID__
[Test]
public void Bugzilla41415Test()
{
RunningApp.WaitForElement(q => q.Marked(ButtonText));
RunningApp.Tap(q => q.Marked(ButtonText));
RunningApp.WaitForElement(q => q.Marked("x: 100"));
RunningApp.WaitForElement(q => q.Marked("y: 100"));
RunningApp.WaitForElement(q => q.Marked("z: True"));
RunningApp.WaitForElement(q => q.Marked("a: True"));
RunningApp.Tap(q => q.Marked(ButtonText));
RunningApp.WaitForElement(q => q.Marked("x: 200"));
RunningApp.WaitForElement(q => q.Marked("y: 100"));
RunningApp.WaitForElement(q => q.Marked("z: True"));
RunningApp.WaitForElement(q => q.Marked("a: False"));
}
#endif
}
}
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