Blur navigation controller background

[JulesMoorhouse]

I have MaryPopin working with a basic navigation controller, however I can't achieve a blur affect on the background. Is there a way to achieve this, I have as follows...

 BKTPopinControllerViewController *popin = [[BKTPopinControllerViewController alloc] init];
    [popin setPopinTransitionStyle:[self transitionStyleForIndexPath:selectedIndexPath]];


    if ([self isDismissable]) {
        [popin setPopinOptions:BKTPopinDefault];
    } else {
        [popin setPopinOptions:BKTPopinDisableAutoDismiss];
    }

    //Set popin alignement according to value in segmented control
    [popin setPopinAlignment:self.selectedAlignementOption];

    //Create a blur parameters object to configure background blur
    BKTBlurParameters *blurParameters = [BKTBlurParameters new];
    blurParameters.alpha = 1.0f;
    blurParameters.radius = 8.0f;
    blurParameters.saturationDeltaFactor = 1.8f;
    blurParameters.tintColor = [UIColor colorWithRed:0.966 green:0.851 blue:0.038 alpha:0.2];
    [popin setBlurParameters:blurParameters];

    //Add option for a blurry background
    [popin setPopinOptions:[popin popinOptions]|BKTPopinBlurryDimmingView];

    [popin setPreferedPopinContentSize:CGSizeMake(280.0, 240.0)];

    //Set popin transition direction
    [popin setPopinTransitionDirection:BKTPopinTransitionDirectionTop];

    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:popin];

    [self presentPopinController:nav animated:YES completion:^{
        NSLog(@"Popin presented !");
    }];

[sparga]

Popin options should be set on the controller presented as a popin, which is the UINavigationController in your case. Try setting all your options on navinstead of popin and it should work as expected.

[JulesMoorhouse]

Hi, thanks so much for your reply.

However, now, my parent view moves to the top left position, I get a black area on the left and at the top, I mean I do get the dialog too.
The gap changes depending on the size passed in from setPreferedPopinContentSize.
I'm not sure what's happening, any further suggestions?

[sparga]

When using a simple UIViewController the popin use its size unless a preferedPopinContentSize is set. With a UINavigationController it is a little different because it does not have a size, it is just a container for other view controllers. So using setPreferedPopinContentSize allows to set the desired size. I think it is why the gap changes depending on the size. For the gap itself, maybe it is related to your autoresizing masks or auto layout constraints ?

[JulesMoorhouse]

Ahhh thanks, I had some code to resize as I wanted to make the dialog a different size and this was somehow adjusting the parent too. Just need to figure how to dismissing the popup.

I thought this would have worked, hmmm

    [self dismissCurrentPopinControllerAnimated:YES completion:^{
        NSLog(@"Popin dismissed !");
        [self.navigationController popViewControllerAnimated:YES];

    }];

[sparga]

Well, if self is the controller presenting the popin it should work but if it is the popin controller, you'll have to use:

[self.presentingPopinViewController dismissCurrentPopinControllerAnimated:YES completion:^{
        NSLog(@"Popin dismissed !");
        [self.navigationController popViewControllerAnimated:YES];

    }];

[JulesMoorhouse]

Thanks for your efforts, but that doesn't work, I've also tried adding the popup to self instead of navigation controller, but that doesn't help either.

Any further suggestions?

    [self presentPopinController:popin animated:YES completion:^{
        NSLog(@"Popin presented !");
    }];

I've created an example project, would you please have a look?

https://github.com/Jules2010/PopupTest

Thanks for your help.

[sparga]

I had a quick look to your sample project. Change the code to dismiss the popin with:

[self.navigationController.presentingPopinViewController dismissCurrentPopinControllerAnimated:YES completion:^{
        NSLog(@"Popin dismissed !");
        [self.navigationController popViewControllerAnimated:YES];
 }];

[JulesMoorhouse]

Thanks so much, that solves it. :)

Now if I could fade instead of slide, that would be awesome, I guess I can make do with cross-fade or turn off animation though.

[sparga]

You have different transition style available: http://cocoadocs.org/docsets/MaryPopin/1.4.2/Constants/BKTPopinTransitionStyle.html

[JulesMoorhouse]

Thanks for all your help :)