Use iOS 16 environment variable while support older iOS?-CodePudding

There are some new environment variable I need to use, for example

@Environment(\.requestReview) var requestReview // StoreKit

But my app needs to support older iOS. How do I "wrap" around this environment variable while not using iOS 16?

CodePudding user response：

We need to annotate view holding that, like

@available(iOS 16, *)
struct StoreKitView: View {
    @Environment(\.requestReview) var requestReview

// ...

CodePudding user response：

You can create your own extension for EnvironmentValues & in it do the check:

extension EnvironmentValues {
    var requestReviewOld: SomeType? {
        get {
            if #available(iOS 16.0, *) {
                self.requestReview
            }else {
                nil
            }
        }
        set {
            if #available(iOS 16.0, *) {
                self.requestReview = newValue
            }
        }
    }
}