127 строки
2.8 KiB
C#
127 строки
2.8 KiB
C#
using Xamarin.Forms.CustomAttributes;
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using Xamarin.Forms.Internals;
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#if UITEST
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using Xamarin.UITest;
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using NUnit.Framework;
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using Xamarin.Forms.Core.UITests;
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#endif
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namespace Xamarin.Forms.Controls.Issues
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{
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[Preserve(AllMembers = true)]
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[Issue(IssueTracker.Github, 3000, "Horizontal ScrollView breaks scrolling when flowdirection is set to rtl")]
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#if UITEST
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[NUnit.Framework.Category(Core.UITests.UITestCategories.Github5000)]
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[NUnit.Framework.Category(UITestCategories.ScrollView)]
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#endif
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public class Issue3000 : TestContentPage
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{
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const string kSuccess = "Success";
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protected override void Init()
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{
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ScrollView view = new ScrollView();
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StackLayout parent = new StackLayout();
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Label instructions = new Label() { Text = "Scroll X should not be zero Scroll Y should be zero" };
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Label scrollPositions = new Label();
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Label outcome = new Label();
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parent.Children.Add(instructions);
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parent.Children.Add(scrollPositions);
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parent.Children.Add(outcome);
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view.Scrolled += (_, __) =>
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{
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if (outcome.Text == kSuccess)
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{
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return;
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}
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scrollPositions.Text = $"ScrollX: {view.ScrollX} ScrollY: {view.ScrollY}";
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if (view.ScrollY == 0 && view.ScrollX > 0)
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{
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outcome.Text = kSuccess;
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}
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else
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{
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outcome.Text = "Fail";
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}
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};
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view.Orientation = ScrollOrientation.Both;
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StackLayout layout = new StackLayout();
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layout.Orientation = StackOrientation.Horizontal;
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layout.Children.Add(new Label() { Text = "LEFT" });
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for (int i = 0; i < 80; i++)
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layout.Children.Add(new Image() { BackgroundColor = Color.Pink, Source = "coffee.png" });
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layout.Children.Add(new Label() { Text = "RIGHT" });
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StackLayout layoutDown = new StackLayout();
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for (int i = 0; i < 80; i++)
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layoutDown.Children.Add(new Image() { BackgroundColor = Color.Pink, Source = "coffee.png" });
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view.FlowDirection = FlowDirection.RightToLeft;
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parent.Children.Insert(0, new Button()
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{
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Text = "click me please",
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Command = new Command(() =>
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{
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if (view.FlowDirection == FlowDirection.LeftToRight)
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{
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view.FlowDirection = FlowDirection.RightToLeft;
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}
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else
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{
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view.FlowDirection = FlowDirection.LeftToRight;
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}
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})
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});
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parent.Children.Insert(0, new Button()
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{
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Text = "reset this view",
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Command = new Command(() =>
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{
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Application.Current.MainPage = new Issue3000();
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})
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});
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parent.Children.Insert(0, new Label()
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{
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Text = "right to left text",
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});
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parent.Children.Insert(0, new Label()
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{
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Text = "left to right text"
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});
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view.Content = new StackLayout()
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{
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Children =
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{
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layout, layoutDown
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}
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};
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parent.Children.Add(view);
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Content = parent;
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}
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#if UITEST
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[Test]
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public void RtlScrollViewStartsScrollToRight()
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{
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RunningApp.WaitForElement(kSuccess);
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}
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#endif
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}
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}
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