DecoratedAppSceneView.m

#import "DecoratedAppSceneView.h"

@implementation DecoratedAppSceneView
- (instancetype)initWithBundleID:(NSString *)bundleID {
    self = [super initWithFrame:CGRectMake(0, 100, 400, 400)];
    self.transitionContext = [UIApplicationSceneTransitionContext new];
    self.navigationBar.overrideUserInterfaceStyle = UIUserInterfaceStyleDark;
    [self.navigationBar.standardAppearance configureWithTransparentBackground];
    self.navigationBar.standardAppearance.backgroundColor = [UIColor colorWithWhite:0 alpha:0.5];
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemClose target:self action:@selector(closeWindow)];

    RBSProcessIdentity* identity = [RBSProcessIdentity identityForEmbeddedApplicationIdentifier:bundleID];
    RBSProcessPredicate* predicate = [RBSProcessPredicate predicateMatchingIdentity:identity];

    FBProcessManager *manager = FBProcessManager.sharedInstance;
    FBApplicationProcessLaunchTransaction *transaction = [[FBApplicationProcessLaunchTransaction alloc] initWithProcessIdentity:identity executionContextProvider:^id(void){
        FBMutableProcessExecutionContext *context = [FBMutableProcessExecutionContext new];
        context.identity = identity;
        context.environment = @{}; // environment variables
        //context.waitForDebugger = NO;
        //context.disableASLR = NO;
        context.launchIntent = 4;
        //context.watchdogProvider = SBSceneWatchdogProvider
        return [manager launchProcessWithContext:context];
    }];

    [transaction setCompletionBlock:^{
        // At this point, the process is spawned and we're ready to create a scene to render in our app
        RBSProcessHandle* processHandle = [RBSProcessHandle handleForPredicate:predicate error:nil];
        [manager registerProcessForAuditToken:processHandle.auditToken];
        NSString *identifier = [NSString stringWithFormat:@"sceneID:%@-%@", bundleID, @"default"];

        FBSMutableSceneDefinition *definition = [FBSMutableSceneDefinition definition];
        definition.identity = [FBSSceneIdentity identityForIdentifier:identifier];
        definition.clientIdentity = [FBSSceneClientIdentity identityForProcessIdentity:identity];
        definition.specification = [UIApplicationSceneSpecification specification];
        FBSMutableSceneParameters *parameters = [FBSMutableSceneParameters parametersForSpecification:definition.specification];

        UIMutableApplicationSceneSettings *settings = [UIMutableApplicationSceneSettings new];
        settings.canShowAlerts = YES;
        settings.cornerRadiusConfiguration = [[BSCornerRadiusConfiguration alloc] initWithTopLeft:self.layer.cornerRadius bottomLeft:self.layer.cornerRadius bottomRight:self.layer.cornerRadius topRight:self.layer.cornerRadius];
        settings.displayConfiguration = UIScreen.mainScreen.displayConfiguration;
        settings.foreground = YES;
        settings.frame = self.bounds;
        settings.interfaceOrientation = UIInterfaceOrientationPortrait;
        //settings.interruptionPolicy = 2; // reconnect
        settings.level = 1;
        settings.peripheryInsets = UIEdgeInsetsMake(self.navigationBar.frame.size.height, 0, 0, 0);
        settings.persistenceIdentifier = NSUUID.UUID.UUIDString;
        settings.safeAreaInsetsPortrait = UIEdgeInsetsMake(self.navigationBar.frame.size.height, 0, 0, 0);
        //settings.statusBarDisabled = 1;
        //settings.previewMaximumSize = 
        //settings.deviceOrientationEventsEnabled = YES;
        self.settings = settings;
        parameters.settings = settings;

        UIMutableApplicationSceneClientSettings *clientSettings = [UIMutableApplicationSceneClientSettings new];
        clientSettings.interfaceOrientation = UIInterfaceOrientationPortrait;
        clientSettings.statusBarStyle = 0;
        parameters.clientSettings = clientSettings;

        FBScene *scene = [[FBSceneManager sharedInstance] createSceneWithDefinition:definition initialParameters:parameters];

        // TODO: get app display name
        self.navigationItem.title = scene.clientProcess.name;

        self.presenter = [scene.uiPresentationManager createPresenterWithIdentifier:identifier];
        [self.presenter activate];
        [self insertSubview:self.presenter.presentationView atIndex:0];
    }];
    [transaction begin];
    return self;
}

- (void)closeWindow {
    self.layer.masksToBounds = NO;
    [UIView transitionWithView:self duration:0.4 options:UIViewAnimationOptionTransitionCurlUp //CrossDissolve
    animations:^{
        self.hidden = YES;
    } completion:^(BOOL b){
        [self.presenter deactivate];
        [self.presenter invalidate];
        [self removeFromSuperview];
    }];
}

- (void)resizeWindow:(UIPanGestureRecognizer*)sender {
    [super resizeWindow:sender];

    self.settings.frame = self.bounds;
    [self.presenter.scene updateSettings:self.settings withTransitionContext:self.transitionContext completion:nil];
}
@end