Merge pull request #18 from AndreasReitberger/17-add-setbusy-methods-to-viewmodelbase

Added `IsBusy` method to `ViewModelBase`

Author: AndreasReitberger

common.props

@@ -1,7 +1,7 @@
 
 <Project>
     <PropertyGroup>
-        <Version>1.0.1</Version>
+        <Version>1.0.2</Version>
         <PackageIcon>ar_128.png</PackageIcon>
         <NeutralLanguage>en</NeutralLanguage>
         <PackageProjectUrl>https://github.com/AndreasReitberger/SharedXFormCoreLibrary</PackageProjectUrl>

src/SharedXFormCoreLibrary/Models/ViewModelBase.cs

@@ -1,5 +1,6 @@
 using AndreasReitberger.Shared.XForm.Core.Interfaces;
 using CommunityToolkit.Mvvm.ComponentModel;
+using System.Threading.Tasks;
 
 namespace AndreasReitberger.Shared.XForm.Core
 {
@@ -80,6 +81,32 @@ public ViewModelBase(IDispatcher dispatcher, IServiceProvider provider)
         }
         #endregion
 
+        #region Methods
+        public void SetBusy(bool isBusy, IDispatcher? dispatcher)
+        {
+            // Only dispatch if needed
+            if (dispatcher is not null && dispatcher?.IsInvokeRequired is true)
+            {
+                dispatcher.BeginInvokeOnMainThread(() =>
+                {
+                    if (isBusy)
+                        IsBusyCounter++;
+                    else
+                        IsBusyCounter--;
+                });
+            }
+            // Update on the MainThread
+            else
+            {
+                if (isBusy)
+                    IsBusyCounter++;
+                else
+                    IsBusyCounter--;
+            }
+        }
+
+        #endregion
+
         #region Dispose
         /*
         public void Dispose()