我正在尝试使我的 iPhone 应用程序(针对 iOS 15 及更高版本)与 iOS 16 完全兼容,但没有成功!
我不知道如何在同一段代码中同时支持NavigationViewiOS 15 和iOS 16。NavigationStack
Xcode 不接受上面的代码:
if #available(iOS 16, *) {
NavigationStack {
} else {
NavigationView {
}
Run Code Online (Sandbox Code Playgroud)
来自:SwiftUI NavigationView/Stack(如果可用)iOS 15/16
我想按照@timmy 的建议创建自定义容器将是唯一的解决方案。但我不知道如何继续。
那有什么办法解决呢?
I'm trying to add/manage my first in-app purchase (non-consumable) on my iOS app and I just discovered that StoreKit 2 doesn't work well offline.
These past days, I used to display (or not) the premium features based on store.purchasedItems.isEmpty but this doesn't work at all on Airplane mode.
I mean, I understand that some parts of my Store file can't be accessible offline. The fetch request from the App Store can only works online, for example. But I didn't expected …
storekit in-app-purchase app-store-connect swiftui storekit2
我是一名设计师,我尝试学习 SwiftUI 是为了好玩,也是为了确保我更多地了解我的开发团队需要我做什么。
有一些非常简单的事情我就是做不到!
正如您从下面的这段代码中看到的,我只想在 var showHello 为 true 时显示文本,并且它工作得很好。
import SwiftUI
struct ContentView: View {
@State var showHello = true
var body: some View {
VStack {
Spacer()
Button("Show Hello", action: { showHello.toggle() })
.padding()
Spacer()
Text("This is your message:")
.padding()
if showHello == true {
Text("Hello")
} else {
Text("Hello")
.opacity(0)
}
Spacer()
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
Run Code Online (Sandbox Code Playgroud)
但是当我想通过使用多个视图做完全相同的事情时,它不起作用!
// Parent file
import SwiftUI
struct ContentView: View …Run Code Online (Sandbox Code Playgroud)