Completed
Last Updated: 20 Mar 2020 15:04 by ADMIN
Release 2020.1.313 (R1 2020 minor release)
Created by: Marc
Comments: 7
Category: UI for Xamarin
Type: Feature Request
7

April 2020 Deadline

Apple will no longer accept applications published with anything less than Xamarin.Forms 4.5 after April 2020.

This is due to the UIWebView flag that is in Xamarin.Forms 4.4 and earlier

ITMS-90809: Deprecated API Usage- Apple will stop accepting submissions of apps that use UIWebView APIs starting from April 2020 . 

 

Solution

Please visit this documentation for full explanation. Just to share the highlights, Telerik UI for Xamarin will need to:

  • Xamarin.Forms 4.5 or higher – Pre-release versions of Xamarin.Forms 4.5 can be used.
  • Xamarin.iOS 13.10.0.17 or higher – Check your Xamarin.iOS version in Visual Studio. This version of Xamarin.iOS is included with Visual Studio for Mac 8.4.1 and Visual Studio 16.4.3.
  • Remove references to UIWebView – Your code should not have any references to UIWebView or any classes that make use of UIWebView.
Completed
Last Updated: 20 Mar 2020 13:25 by ADMIN
Release 2020.1.313 (R1 2020 minor release)

Since 2020.1.218 the NuGet package for UWP Apps doesn't work, it references files that are not found during build.

 

//

Completed
Last Updated: 20 Mar 2020 13:22 by ADMIN
Release 2020.1.313 (R1 2020 minor release)
As soon the user tries to swipe more than one list item at the same time on iOS, the swiping functionality is not properly handled/
Completed
Last Updated: 20 Mar 2020 13:22 by ADMIN
Release 2020.1.313 (R1 2020 minor release)
When you try to swipe several items at once by using more than 1 finger - the items are stuck and the space where the ItemSwipe content should be present is left blank. The issue can also be observed if you swipe items very fast. 
Completed
Last Updated: 20 Mar 2020 13:18 by ADMIN
Release 2020.1.313 (R1 2020 minor release)
After setting the MajorLinesVisibility property to GridLineVisibility.Xy only the Y lines are showing up.
Completed
Last Updated: 20 Mar 2020 13:18 by ADMIN
Release 2020.1.313 (R1 2020 minor release)
Created by: IanV
Comments: 0
Category: Calendar & Scheduling
Type: Bug Report
3
If you have an appointment with duration 15 min, it is not properly rendered in DayView/MultiDayView on Android - it is visualized as a 30 min appointment
Completed
Last Updated: 19 Feb 2020 16:26 by ADMIN
Release R1 2020 SP1
ADMIN
Created by: Rosy Topchiyska
Comments: 8
Category: ListView
Type: Feature Request
24
On UWP and Android the item can be swiped beyond the SwipeOffset property. Add option to restrict the swiped distance to the SwipeOffset value.
Completed
Last Updated: 19 Feb 2020 16:24 by ADMIN
Release R1 2020 SP1
ADMIN
Created by: Nikolay
Comments: 5
Category: ListView
Type: Bug Report
4
This can be reproduced in the SDK examples ->ListView -> Gestures -> CellSwipeEvents. 
1. Change the content of the items so that they have uneven height
2. Scroll down 
3. Delete an item by swiping
-> Expected result : The items re-arrange correctly
-> Actual result : The item is deleted but the ListView is scrolled up when the UI is updated
Completed
Last Updated: 19 Feb 2020 16:22 by ADMIN
Release R1 2020 SP1
When LoadOnDemand event have loaded its data then there is some kind of jumping down through the new items while scrolling. 
Completed
Last Updated: 19 Feb 2020 16:15 by ADMIN
Release R1 2020 SP1
Created by: Ron
Comments: 0
Category: ListView
Type: Feature Request
4
Users should be allowed to disable swiping in one direction only.
Completed
Last Updated: 19 Feb 2020 16:13 by ADMIN
Release R1 2020 SP1
Created by: Safan
Comments: 0
Category: ListView
Type: Bug Report
13
When the ListView has more items, it could be vertically scrolled, however, there is no UI for vertical scrollbar on Android.  The same can be observed with RadTreeView control.
Completed
Last Updated: 19 Feb 2020 16:04 by ADMIN
Release R1 2020 SP1
Created by: Safan
Comments: 0
Category: TreeView
Type: Bug Report
11
When you have longer text shown in TreeView items and it is wrapped in 2 or 3 rows, the text is clipped incorrectly.
Completed
Last Updated: 19 Feb 2020 16:03 by ADMIN
Release R1 2020 SP1
Created by: VPS
Comments: 0
Category: TreeView
Type: Bug Report
12
Currently if the TreeView has deeper hierarchy or items with longer text, the end user will not be able to scroll horizontally.
Completed
Last Updated: 19 Feb 2020 16:00 by ADMIN
Release R1 2020 SP1
When we remove the last item from the observable collection we get an unhandled exception like this:

"Attempt to delete item 0 from section 0 which only contains 0 items before the update"
Completed
Last Updated: 19 Feb 2020 15:58 by ADMIN
Release R1 2020 SP1
If EndItemSwipe() is called inside the ItemSwiping event handler, the ItemSwiping event continues to occur on iOS until the user physically ends the swipe gesture.
Completed
Last Updated: 19 Feb 2020 15:47 by ADMIN
Release R1 2020 SP1
Flickering occurs after the RadListView is refreshed. The issue is observed with v 2019.1.116.1 of Telerik UI for Xamarin.
Completed
Last Updated: 19 Feb 2020 15:44 by ADMIN
Release R1 2020 SP1
 If you open a datagrid's filter pop-up, navigate away from the page, then go back to the page, the filter pop-up will still be open.

If you attempt to close it, by way of the "X", the app will crash. In debug mode, a null reference error will occur. If navigating away from the grid with the filter closed, no crash will happen.
Completed
Last Updated: 19 Feb 2020 15:43 by ADMIN
Release R1 2020 SP1

When change my calendar view to Agenda, appointments with too large Title, overlap the time section in the container box.
Completed
Last Updated: 19 Feb 2020 15:33 by ADMIN
Release R1 2020 SP1

I have a StackLayout, a ListView and within the listview a RadCheckBox and a Label. The StackLayout has a binding to IsVisible with the viewmodel. The ListView binds IsVisible to another property bound in the viewmodel. When OnAppearing of the Page, the ItemsSource of the ListView is set to an ObservableCollection. Now we get a crash on iOS and a Samsung Galayxy S with Android 9:

  at Telerik.XamarinForms.PrimitivesRenderer.iOS.TKCheckBox.CleanUI () [0x00007] in <04ee5ef79f6f4ed58266679a9a47ffaf>:0 
  at Telerik.XamarinForms.PrimitivesRenderer.iOS.CheckBoxRenderer.OnElementDetached (Telerik.XamarinForms.Primitives.RadCheckBox oldElement) [0x00025] in <04ee5ef79f6f4ed58266679a9a47ffaf>:0 
  at Telerik.XamarinForms.Common.iOS.IosRendererBase`2[S,T].Dispose (System.Boolean disposing) [0x0001f] in <b3d6af25b9654b5881f5a9721531628b>:0 
  at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.4.0.2/src/Xamarin.iOS/Foundation/NSObject2.cs:147 
  at Xamarin.Forms.Platform.iOS.ListViewRenderer+UnevenListViewDataSource.CalculateHeightForCell (UIKit.UITableView tableView, Xamarin.Forms.Cell cell) [0x000aa] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\ListViewRenderer.cs:897 
  at Xamarin.Forms.Platform.iOS.ListViewRenderer+UnevenListViewDataSource.GetEstimatedRowHeight (UIKit.UITableView table) [0x0008c] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\ListViewRenderer.cs:812 
  at Xamarin.Forms.Platform.iOS.ListViewRenderer+UnevenListViewDataSource.UpdateEstimatedRowHeight (UIKit.UITableView tableView) [0x00000] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\ListViewRenderer.cs:823 
  at Xamarin.Forms.Platform.iOS.ListViewRenderer+ListViewDataSource.DetermineEstimatedRowHeight () [0x00009] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\ListViewRenderer.cs:1271 
  at Xamarin.Forms.Platform.iOS.FormsUITableViewController.ViewWillLayoutSubviews () [0x00000] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\ListViewRenderer.cs:1599 
  at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
  at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.4.0.2/src/Xamarin.iOS/UIKit/UIApplication.cs:86 
  at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0000e] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.4.0.2/src/Xamarin.iOS/UIKit/UIApplication.cs:65 
  at our app......


The remedy after a lot of trial and error was to replace the ListView with the Telerik ListView. Now the App no longer crashes. I hope this helps investigating the issue, since I noticed there are similar requests in the bug reports. 

I'm using: Xamarin Forms 4.2.0.848062, Telerik2019.3.1004.1.

Completed
Last Updated: 19 Feb 2020 15:30 by ADMIN
Release R1 2020 SP1
ADMIN
Created by: Nikolay Demirev
Comments: 1
Category: ListView
Type: Feature Request
11
Provide API which enables the group headers to remain in the view when scrolling until the next ones push them away.
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