is there a way to provide iOS version check inside widget extension

Question

I tried to add iOS 17 version check inside WidgetBundle but the widget extension keep on crashing .

Getting Thread 1: Swift runtime failure: Unexpectedly found nil while unwrapping an Optional value. After removing the iOS 17 check it works fine.

Is there any way to provide version check inside widgetBundle?

 struct MyWidgets: WidgetBundle {
        @WidgetBundleBuilder
        var body: some Widget {
            widget1()
            widget2()

            if #available(iOSApplicationExtension 16.1, *) {
               LiveActivity()
            }
            if #available(iOSApplicationExtension 17.0, *) {
               ContactdWidget()
            }
            
        }
}

Answer 1

Try WidgetBundleBuilder.buildBlock for every separate version check and provide all supported widgets inside buildBlock for a particular version

struct MyWidgets: WidgetBundle {

    @WidgetBundleBuilder
    var body: some Widget {
        getWidgets()
    }

    private func getWidgets()-> some Widget{
        if #available(iOS 16.1, *){
          return getNewiOSWidgets()
        }else{
            //Older widgets
        }
    }

    @available(iOSApplicationExtension 16.1, *)
    private func getNewiOSWidgets()->some Widget{
        if #available(iOS 17.0, *) {
            return WidgetBundleBuilder.buildBlock(
               Widget1(),
                Widget2(),
                LiveActivityWidget()
            )
        }else{
            return WidgetBundleBuilder.buildBlock(
                Widget3(),
                Widget4(),
                LiveActivityWidget()
            )
        }
        
    }
}