iOS handoff from phone to macbook safari/chrome

Question

I want to send a URL from my app to open on a laptop web browser using handoff. I have added the activity type to my app's NSUserActivityTypes. here is my code so far:

- (void)startHandoff {
    NSUserActivity *activity = [[NSUserActivity alloc] initWithActivityType:@"com.me.browse"];
    activity.webpageURL = [NSURL URLWithString:_wakeUrl];
    [activity becomeCurrent];
}

It doesn't seem to be appearing on my dock - does it need a special Activity Type if you want to use safari?

Answer 1

Ok after tests, it seems that you need to declare the NSUserActivity as a instance Variable :

So this does not work:

@interface TestViewController () {
}

@end

@implementation TestViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    //init hand off
    NSUserActivity *activity = [[NSUserActivity alloc] initWithActivityType:@"com.app.browse"];
    activity.webpageURL = [NSURL URLWithString:@"http://www.stackoverflow.com"];
    [activity becomeCurrent];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

But this works fine:

@interface TestViewController () {
      NSUserActivity *activity;
}

@end

@implementation TestViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    //init hand off
   activity = [[NSUserActivity alloc] initWithActivityType:@"com.app.browse"];
    activity.webpageURL = [NSURL URLWithString:@"http://www.stackoverflow.com"];
    [activity becomeCurrent];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

Not sure why though, I'm looking into it now