How to allow user select value on iOS ?

[sunjianan9900]

When the user long presses the HomeWidget, the Event selector will be displayed, and then select the corresponding value to display
How should it be achieved?
like this:

[ABausG]

Please refer to the official iOS documentation for this as this is all native code

https://developer.apple.com/documentation/widgetkit/making-a-configurable-widget

In order to write these values back you can use the same storage method as the widget itself. So on the iOS side of things you use:

let preferences = UserDefaults.init(suiteName: SwiftHomeWidgetPlugin.groupId)
preferences?.setValue(data, forKey: "HomeWidgetConfiguration")

and then on the flutter side

final data = await HomeWidget.getWidgetData('HomeWidgetConfiguration');