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Diffstat (limited to 'Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla28570.cs')
| -rw-r--r-- | Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla28570.cs | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla28570.cs b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla28570.cs new file mode 100644 index 00000000..5e9a8cb8 --- /dev/null +++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla28570.cs @@ -0,0 +1,118 @@ +using System; +using System.Diagnostics; +using Xamarin.Forms.CustomAttributes; + +#if UITEST +using Xamarin.UITest.Android; +using Xamarin.UITest; +using NUnit.Framework; +#endif + +namespace Xamarin.Forms.Controls +{ + [Preserve (AllMembers = true)] + [Issue (IssueTracker.Bugzilla, 28570, "https://bugzilla.xamarin.com/show_bug.cgi?id=28570")] + internal class Bugzilla28570 : TestContentPage + { + public ScrollView ScrollView; + + protected override void Init () + { + Label header = new Label { + Text = "ScrollView Bug", + FontSize = 50, + FontAttributes = FontAttributes.Bold, + HorizontalOptions = LayoutOptions.Center + }; + + Label lab1 = new Label (); + lab1.Text = "Sometimes page content fits entirely on " + + "the page. That's very convenient. But " + + "on many occasions, the content of the page " + + "is much too large for the page, or only " + + "becomes available at runtime." + + "\n\n" + + "For cases such as these, the ScrollView " + + "provides a solution. Simply set its " + + "Content property to your content \u2014 in this " + + "case a Label but in the general case very " + + "likely a Layout derivative with multiple " + + "children \u2014 and the ScrollView provides " + + "scrolling with the distinctive look and touch " + + "familiar to the user." + + "\n\n" + + "The ScrollView is also capable of " + + "horizontal scrolling, and while that's " + + "usually not as common as vertical scrolling, " + + "sometimes it comes in handy." + + "\n\n" + + "Most often, the content of a ScrollView is " + + "a StackLayout. Whenever you're using a " + + "StackLayout with a number of items determined " + + "only at runtime, you should probably put it in " + + "a StackLayout just to be sure your stuff doesn't " + + "go running off the bottom of the screen." + + "Most often, the content of a ScrollView is " + + "a StackLayout. Whenever you're using a " + + "StackLayout with a number of items determined " + + "only at runtime, you should probably put it in " + + "a StackLayout just to be sure your stuff doesn't " + + "go running off the bottom of the screen."; + + var targetLabel = new Label {Text = "Find Me"}; + targetLabel.AutomationId = "28570Target"; + + lab1.FontSize = Device.GetNamedSize (NamedSize.Small, typeof (Label)); + + + ScrollView = new ScrollView { + VerticalOptions = LayoutOptions.FillAndExpand, + Content = new StackLayout { + Children = { + lab1, + targetLabel + } + } + }; + + Button makeBig = new Button (); + makeBig.Text = "Tap"; + // + // Clicking button first time does not scroll event though scrollView.Height is already set. + // Clicking a second time does correctly scroll to the end. scrollView.Height is unchanged. + // + // For this test to work you should make sure the text fits into the screen when the font is small + // and then becomes larger than the screeen when switching to the Large font. + // + makeBig.Clicked += (object sender, EventArgs e) => { + lab1.FontSize = Device.GetNamedSize (NamedSize.Large, typeof (Label)); + Debug.WriteLine ("******** scrollView.Height= {0}", lab1.Height); // this shows the same updated size on all clicks, so this is not the problem. + ScrollView.ScrollToAsync (0, lab1.Bounds.Bottom, false); + }; + + // Build the page. + Content = new StackLayout { + Children = { + makeBig, + header, + ScrollView, + } + }; + } + +#if UITEST + [Test] + [Ignore("Fails intermittently on TestCloud")] + public void Bugzilla28570Test () + { + if (RunningApp is AndroidApp) { + RunningApp.WaitForElement (q => q.Marked ("Tap")); + RunningApp.Screenshot ("At test page"); + RunningApp.Tap (q => q.Marked ("Tap")); + + RunningApp.WaitForElement (q => q.Marked ("28570Target")); + } + } +#endif + } +}
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