Qt6 iOS custom SceneDelegate

nguyenbinh

Hello!

I'm about to add "Quick Actions Menu" feature to my app, followed this guide, the menus shown up on home screen. But when I try to create implementation of SceneDelegate to catch menu action and add config in Info.plist, the app in my iPhone just open black window. Did anyone try this and success before?

Here is my Info.plist:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	...
	<key>UIApplicationShortcutItems</key>
	<array>
		<dict>
			<key>UIApplicationShortcutItemType</key>
			<string>com.bnc.MenuItem2</string>
			<key>UIApplicationShortcutItemTitle</key>
			<string>Menu Item 2</string>
		</dict>
		<dict>
			<key>UIApplicationShortcutItemType</key>
			<string>com.bnc.MenuItem1</string>
			<key>UIApplicationShortcutItemTitle</key>
			<string>Menu Item 1</string>
			<key>UIApplicationShortcutItemSubtitle</key>
			<string>Subtitle 1</string>
			<key>UIApplicationShortcutItemIconType</key>
			<string>UIApplicationShortcutIconTypeSearch</string>
		</dict>
	</array>

	<key>UIApplicationSceneManifest</key>
	<dict>
		<key>UIApplicationSupportsMultipleScenes</key>
		<false/>
		<key>UISceneConfigurations</key>
		<dict>
			<key>UIWindowSceneSessionRoleApplication</key>
			<array>
				<dict>
					<key>UISceneConfigurationName</key>
					<string>Default Configuration</string>
					<key>UISceneDelegateClassName</key>
					<string>$(PRODUCT_MODULE_NAME).PhoneSceneDelegate</string>
				</dict>
			</array>
		</dict>
	</dict>
	...
</dict>
</plist>

Here is my obj_c.mm (and add this to qt_add_executable):

#import <UIKit/UIKit.h>

@interface PhoneSceneDelegate : UIResponder <UIWindowSceneDelegate>
@end

@implementation PhoneSceneDelegate
-(void) windowScene:(UIWindowScene*)windowScene
    performActionForShortcutItem:(UIApplicationShortcutItem*)shortcutItem
               completionHandler:(void (^)(BOOL succeeded))completionHandler {
  NSString *fmt = @"There are other objects in the scene.";
  NSString *msg = [fmt stringByAppendingString:[shortcutItem type]];
  UIAlertController* alertController = [UIAlertController alertControllerWithTitle:@"Quick Actions Pressed"
                                            message:msg
                                     preferredStyle:UIAlertControllerStyleAlert];

  [alertController addAction:[UIAlertAction actionWithTitle:@"Ok"
                                                          style:UIAlertActionStyleDefault
                                                        handler:nil]];

  UIWindow* window = [[UIApplication sharedApplication] keyWindow];
  UIViewController *ctl = [window rootViewController];
  [ctl presentViewController:alertController animated:true completion:nil];
}
@end

nguyenbinh

I managed to resolve the issue. Actually, Qt6 iOS uses ApplicationDelegate protocol, not SceneDelegate protocol. So just remove stuffs in Info.plist and the content in obj_c.mm should be:

#import "UIKit/UIKit.h"
#import "UserNotifications/UserNotifications.h"

@interface QIOSApplicationDelegate
@end

@interface QIOSApplicationDelegate (MyIOSApplicationDelegate)
@end

@implementation QIOSApplicationDelegate (MyIOSApplicationDelegate)

- (void) application: (UIApplication *) application
  performActionForShortcutItem: (UIApplicationShortcutItem *) shortcutItem
  completionHandler: (void (^)(BOOL succeeded)) completionHandler {
...
}

MarcoDC

Hey @nguyenbinh may I follow up on this question because I am facing the same issue :D
What version of Qt you are using? Are you aware if Qt6.9.1 still only uses AppDelegate protocol and no Scene-"stuff" at all?

I wasn't able to find any documentation or deeper info on this topic at all :s