问如何检测自定义键盘是否在键盘的容器app中开通？

EN

- (BOOL)isCustomKeyboardEnabled {
    NSString *bundleID = @"com.company.app.customkeyboard"; // Replace this string with your custom keyboard's bundle ID
    NSArray *keyboards = [[[NSUserDefaults standardUserDefaults] dictionaryRepresentation] objectForKey:@"AppleKeyboards"]; // Array of all active keyboards
    for (NSString *keyboard in keyboards) {
        if ([keyboard isEqualToString:bundleID])
            return YES;
    }

    return NO;
}

   func isKeyboardExtensionEnabled() -> Bool {
    guard let appBundleIdentifier = Bundle.main.bundleIdentifier else {
        fatalError("isKeyboardExtensionEnabled(): Cannot retrieve bundle identifier.")
    }

    guard let keyboards = UserDefaults.standard.dictionaryRepresentation()["AppleKeyboards"] as? [String] else {
        // There is no key `AppleKeyboards` in NSUserDefaults. That happens sometimes.
        return false
    }

    let keyboardExtensionBundleIdentifierPrefix = appBundleIdentifier + "."
    for keyboard in keyboards {
        if keyboard.hasPrefix(keyboardExtensionBundleIdentifierPrefix) {
            return true
        }
    }

    return false
}

// Create and share access to an NSUserDefaults object.
NSUserDefaults *mySharedDefaults = [[NSUserDefaults alloc]
initWithSuiteName:@"com.example.domain.MyShareExtension"];
// Use the shared user defaults object to update the user's account.
[mySharedDefaults setObject:theAccountName forKey:@"lastAccountName"];