在我的iOS 14 @bot.command()
async def serverinfo(ctx):
guild = ctx.guild
server = discord.Embed(title="Server info", description="▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬")
server.add_field(name=f':mega: Server:', value=f'➜ Server name: {guild.name}\n➜ Server id: {guild.id}\n➜ Created at: {guild.created_at}', inline=False)
server.add_field(name=f':crown: Owner', value=f'➜ Name: {guild.owner.display_name}\n➜ Mention: {guild.owner.mention}\n➜ ID: {guild.owner.id}', inline=False)
server.add_field(name=f':earth_americas: Region:', value=f'➜ {guild.region}')
server.add_field(name=f':busts_in_silhouette: Members:', value=f'➜ Total Members: {len(guild.members)}\n➜ Online <:online:768523616336871434>: {len(list(filter(lambda m: str(m.status) == "online", ctx.guild.members)))}\n➜ Offline <:offline:768523674067533835>: {len(list(filter(lambda m: str(m.status) == "offline", ctx.guild.members)))}\n➜ Do not disturb <:dnd:768526277845188608>: {len(list(filter(lambda m: str(m.status) == "dnd", ctx.guild.members)))}\n➜ Idle <:idle:768523706217267252>: {len(list(filter(lambda m: str(m.status) == "idle", ctx.guild.members)))}', inline=False)
server.add_field(name=f':shield: Roles:', value=f'➜ Total roles: {len(guild.roles)}\n➜ Top Role: <@&{ctx.guild.roles[len(ctx.guild.roles)-1].id}>')
server.add_field(name=f':file_cabinet: Channels:', value=f'➜ Total channels: {len(guild.channels)}\n➜ Categories: {len(guild.categories)}\n➜ Text Channels: {len(guild.text_channels)}\n➜ Voice Channels: {len(guild.voice_channels)}\n➜ AFK channel: {guild.afk_channel}')
server.add_field(name=f':notebook_with_decorative_cover: Emojis:', value=f'➜ Total emojis: {len(guild.emojis)}')
server.set_thumbnail(url=f'{ctx.guild.icon_url}')
await ctx.message.delete()
await ctx.channel.send(embed=server)
中，我可以通过以下方式注册旧版App：
AppDelegate但是，我注意到您在the documentation中可以将@main
struct MyApp: App {
#if os(iOS)
@UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
#endif
var body: some Scene {
...
}
}
#if os(iOS)
class AppDelegate: NSObject, UIApplicationDelegate {
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
SomeSDK.configure(with: launchOptions)
return true
}
}
#endif
设为UIApplicationDelegateAdaptor，然后将其注入ObservableObject中：
... delegate将放置在环境中，并且可以使用视图层次结构中的
EnvironmentObject属性包装器进行访问。
我找不到任何如何工作的示例。使此功能@EnvironmentObject起作用的语法是什么？
答案 0 :(得分：3)
这是用法演示
Pod至AppDelegate ObservableObjectclass AppDelegate: NSObject, UIApplicationDelegate, ObservableObject {
@Published var value: String = ""
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
self.value = "test" // in any callback use your published property
return true
}
}
注册为适配器AppDelegate@main
struct Testing_SwiftUI2App: App {
@UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
// ... other code
@EnvironmentObject通过Xcode 12 / iOS 14测试。