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Fix by workaround crash on LabelRenderer and when changing themes #1689 (#1690)

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Federico Maccaroni 2021-12-16 11:36:06 -03:00 committed by GitHub
parent 04c7409418
commit adb8bb4f1b
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2 changed files with 105 additions and 68 deletions
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21
src/App/Utilities/ThemeManager.cs
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@ -4,6 +4,9 @@ using Bit.App.Services;
using Bit.App.Styles;
using Bit.Core;
using Xamarin.Forms;
#if !FDROID
using Microsoft.AppCenter.Crashes;
#endif
namespace Bit.App.Utilities
{
@ -13,6 +16,8 @@ namespace Bit.App.Utilities
public static Func<ResourceDictionary> Resources = () => null;
public static void SetThemeStyle(string name, ResourceDictionary resources)
{
try
{
Resources = () => resources;
@ -71,6 +76,22 @@ namespace Bit.App.Utilities
resources.MergedDictionaries.Add(new iOS());
}
}
catch (InvalidOperationException ioex) when (ioex.Message != null && ioex.Message.StartsWith("Collection was modified"))
{
// https://github.com/bitwarden/mobile/issues/1689 There are certain scenarios where this might cause "collection was modified; enumeration operation may not execute"
// the way I found to prevent this for now was to catch the exception here and move on.
// Because on the screens that I found it to happen, the screen is being closed while trying to apply the resources
// so we shouldn't be introducing any issues.
// TODO: Maybe something like this https://github.com/matteobortolazzo/HtmlLabelPlugin/pull/113 can be implemented to avoid this
// on html labels.
}
catch (Exception ex)
{
#if !FDROID
Crashes.TrackError(ex);
#endif
}
}
public static void SetTheme(bool android, ResourceDictionary resources)
{

18
src/iOS.Core/Renderers/CustomLabelRenderer.cs
View File

@ -1,4 +1,5 @@
using System.ComponentModel;
using System;
using System.ComponentModel;
using Bit.iOS.Core.Renderers;
using Bit.iOS.Core.Utilities;
using UIKit;
@ -20,8 +21,20 @@ namespace Bit.iOS.Core.Renderers
}
protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
{
try
{
base.OnElementPropertyChanged(sender, e);
}
catch (NullReferenceException)
{
// Do nothing...
// There is an issue on Xamarin Forms which throws a null reference
// https://appcenter.ms/users/kspearrin/apps/bitwarden/crashes/errors/534094859u/overview
// TODO: Maybe something like this https://github.com/matteobortolazzo/HtmlLabelPlugin/pull/113 can be implemented to avoid this
// on html labels.
}
if (e.PropertyName == Label.FontProperty.PropertyName ||
e.PropertyName == Label.TextProperty.PropertyName ||
e.PropertyName == Label.FormattedTextProperty.PropertyName)
@ -32,6 +45,9 @@ namespace Bit.iOS.Core.Renderers
private void UpdateFont()
{
if (Element is null || Control is null)
return;
var pointSize = iOSHelpers.GetAccessibleFont<Label>(Element.FontSize);
if (pointSize != null)
{