MarsCam is an iOS app shows real Mars photos taken by the three Mars rovers: Curiosity, Opportunity, Spirit.
- Select an earth date
- Choose between the three Mars rovers: Curiosity, Opportunity, Spirit.
- Press submit button
User can share the image they found
func animateImageView(marsPhotoImageView: UIImageView) {
self.marsPhotoImageView = marsPhotoImageView
if let startingFrame = marsPhotoImageView.superview?.convert(marsPhotoImageView.frame, to: nil) {
marsPhotoImageView.alpha = 0
blackBackgroundView.frame = self.view.frame
blackBackgroundView.backgroundColor = .black
blackBackgroundView.alpha = 0
view.addSubview(blackBackgroundView)
zoomImageView.frame = startingFrame
zoomImageView.isUserInteractionEnabled = true
zoomImageView.image = marsPhotoImageView.image
zoomImageView.contentMode = .scaleAspectFill
zoomImageView.clipsToBounds = true
view.addSubview(zoomImageView)
zoomImageView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(zoomOut)))
UIView.animate(withDuration: 0.75) { () -> Void in
let height = (self.view.frame.width / startingFrame.width) * startingFrame.height
let y = self.view.frame.height / 2 - height / 2
self.zoomImageView.frame = CGRect(x: 0, y: y, width: self.view.frame.width, height: height)
self.blackBackgroundView.alpha = 1
}
}
// Push In Share Button
let shareButton = UIBarButtonItem(barButtonSystemItem: .action, target: self, action: #selector(shareButtonTapped))
self.navigationItem.rightBarButtonItem = shareButton
// Push In Back Button
self.navigationItem.leftBarButtonItem = UIBarButtonItem(title: "Back", style: .plain, target: self, action: #selector(backButtonTapped))
}
@objc func zoomOut() {
if let startingFrame = marsPhotoImageView!.superview?.convert(marsPhotoImageView!.frame, to: nil) {
UIView.animate(withDuration: 0.75, animations: { () -> Void in
self.zoomImageView.frame = startingFrame
self.blackBackgroundView.alpha = 0
}, completion: { (didComplete) -> Void in
self.zoomImageView.removeFromSuperview()
self.blackBackgroundView.removeFromSuperview()
self.marsPhotoImageView?.alpha = 1
})
}
// Pop Out Share Button
self.navigationItem.rightBarButtonItem = nil
// Push In Date Back Button
self.navigationItem.leftBarButtonItem = dateBackButton
}