Hi Philippe and thank You for Your job.

I'm trying to use AlertOnboarding on my project but I receive the error:

Could not cast value of type 'AlertOnboarding.AlertChildPageViewController' (0x10d8b53f8) to 'Surf_Shop.AlertChildPageViewController' (0x10d2a6da8).

on:

pageContentViewController = UINib(nibName: "AlertChildPageViewController", bundle: nil).instantiateWithOwner(nil, options: nil)[0] as! AlertChildPageViewController

while the master project works fine.

Could You help me please to solve it? Thank You very much Kind regards Fabio

I've added a delegate that provides callbacks that are fired when onboarding has been completed, skipped, or when the next step has been triggered.

This can be useful for analytics, or for integrating the onboarding with a request for location permissions (for example).

Following the usage I can't get this to work. Calling it from my viewDidLoad() in iOS 9.0 installed using cocoapods.

After calling alertView.show(), print(alertView) shows:

<AlertOnboarding.AlertOnboarding: 0x144d43e00; frame = (0 0; 0 0); clipsToBounds = YES; layer = <CALayer: 0x144d338f0>>

Am I doing anything wrong or do I need to do something else?

PageControl indicator doesn't show when purcentageRatioHeight is less than default (0.8).

The error seems to be on AlertPageViewController:

    let alertViewSizeHeight = UIScreen.mainScreen().bounds.height*0.8

It must be:

    let alertViewSizeHeight = UIScreen.mainScreen().bounds.height*alertview.purcentageRatioHeight

Thanks

I wanted to show the alert with some transparency so I used the next settings:

        let alpha: CGFloat = 0.82
        let blueAlpha = UIColor(red: 3/255, green: 169/255, blue: 244/255, alpha: alpha)

        alertView.colorForAlertViewBackground = UIColor(white: 0, alpha: alpha)
        alertView.colorButtonText = UIColor(white: 1, alpha: alpha)
        alertView.colorButtonBottomBackground = blueAlpha
        alertView.colorTitleLabel = UIColor(white: 1, alpha: alpha)
        alertView.colorDescriptionLabel =  UIColor(white: 1, alpha: alpha)
        alertView.colorPageIndicator =  UIColor(white: 1, alpha: alpha)
        alertView.colorCurrentPageIndicator = blueAlpha

But then the page control background area was darkened. I realized that the backgroundColor of the page control was the same used in the alert view, so I made a quick mod to the next line in AlertPageViewController:

    self.pageControl.backgroundColor = alertview.colorForAlertViewBackground

to

    self.pageControl.backgroundColor = UIColor.clearColor()

Now it seems like there are two page controls overlapped.

Getting the following error. Was wondering if this happens to anybody else too when using xcode 8 and swift 3.

Is there something that needs to be changed inside of cocoapod file to prevent this from happening? Thanks!

“Use Legacy Swift Language Version” (SWIFT_VERSION) is required to be configured correctly for targets which use Swift. Use the [Edit > Convert > To Current Swift Syntax…] menu to choose a Swift version or use the Build Settings editor to configure the build setting directly.

Would be swell to add an option to remove the page control when items being used in the AlertOnboarding is only 1, so this can also be used as an alert.

When I rotate the device the background doesn't size correctly.

I made the next changes to fix the issue:

    //Constraints for background
    let widthContraintsForBackground = NSLayoutConstraint(item: self.background, attribute:.Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: UIScreen.mainScreen().bounds.width)
    let heightConstraintForBackground = NSLayoutConstraint.init(item: self.background, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: UIScreen.mainScreen().bounds.height)

to

    //Constraints for background
    let widthContraintsForBackground = NSLayoutConstraint(item: self.background, attribute:.Width, relatedBy: .Equal, toItem: superView, attribute: .Width, multiplier: 1, constant: 0)
    let heightConstraintForBackground = NSLayoutConstraint.init(item: self.background, attribute: .Height, relatedBy: .Equal, toItem: superView, attribute: .Height, multiplier: 1, constant: 0)

I'd be cool to also add Cocoapods support. I done this implementation myself last week for my library. Just follow this post and this checklist. Lemme know if you need any help! :smile:

Thanks Philippe for the pod!

A quick heads-up, the alert is broken on iOS 12 beta.

Since I had to manually install the pod anyway to include all the nice PRs that people have pushed, here's how I replaced the constraints to fix the issue (only tested on iPhone X). Won't be pushing a PR because there is already a list of a few ones waiting, plus I am using a UIView convenience extension to create my anchors in a few lines.

In AlertOnboarding, after removing the constraints (keep those lines), here are the constraints to create:

• view width anchored to its superview width, multiplier = percentageRatioWidth
• view height anchored to its superview height, multiplier = percentageRatioHeight
• view centered in its superview, on X and Y axis

• buttomButton width anchored to view width, multiplier 1
• buttomButton height anchored to view height, multiplier 0.1
• buttomButton's bottom anchored to view bottom
• buttomButton centered in its superview on X axis

• container's view width anchored to view width, multiplier 1
• container's view height anchored to view height, multiplier 0.9
• container's view top anchored to view top
• container's view centered in its superview on X axis

• background fills its superview (pinned to all edges)

For anyone using LBTAComponents's UIView extension, here's a ready-to-use snippet to replace AlertOnboarding' configureConstraints function:

fileprivate func configureConstraints(_ superView: UIView) {
    
    removeConstraints(constraints)
    buttonBottom.removeConstraints(buttonBottom.constraints)
    container.view.removeConstraints(container.view.constraints)
    
    equal(width: superView.widthAnchor, widthMultiplier: percentageRatioWidth,
          height: superView.heightAnchor, heightMultiplier: percentageRatioHeight)
    anchorCenterSuperview()
    
    buttonBottom.equal(width: widthAnchor, height: heightAnchor, heightMultiplier: 0.1)
    buttonBottom.anchor(bottom: bottomAnchor)
    buttonBottom.anchorCenterXToSuperview()
    
    //Constraints for container
    container.view.equal(width: widthAnchor, height: heightAnchor, heightMultiplier: 0.9)
    container.view.anchor(top: topAnchor)
    container.view.anchorCenterXToSuperview()
    
    //Constraints for background
    background.fillSuperview()
}

When the alertView is dismissed it fades away, then after it fades the background view is removed causing a rather jarring animation as the background suddenly disappears. With this PR the background now fades away along with the alertView for a much smoother transition.