I have solved this problem with a correct answer

Yes, this code run on my main capture app, when the app 'didFinishLaunchingWithOptions', i will run this code

It didn't work, have you tried this ?

no, my case is ios18 ControlWidgetButton

struct TestControlCenterControl: ControlWidget { var body: some ControlWidgetConfiguration { StaticControlConfiguration( kind: "com.intsig.TestControlWidget.TestControlCenter", content: { ControlWidgetButton(action: OpenMainAppIntent()) { Image(systemName: "heart") } } ) } } I am using the following code in iOS18 beta version， but i don‘t know how to add widgetURL

I have the same issue, it can open app, but appdelegate won't perform 'openURL'

Maybe we need to use symbol images, not a image, you can try it