mirror of
https://github.com/HackPlan/TTGSnackbar.git
synced 2026-04-26 13:04:56 +08:00
Added: Animation types.
This commit is contained in:
zekunyan
@@ -15,6 +15,14 @@ public enum TTGSnackbarDuration: NSTimeInterval {
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case TTGSnackbarDurationForever = 9999999999.0 // Must dismiss manually.
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}
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public enum TTGSnackbarAnimationType {
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case TTGSnackbarAnimationFadeInFadeOut
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case TTGSnackbarAnimationSlideFromBottomToTop
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case TTGSnackbarAnimationSlideFromBottomBackToBottom
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case TTGSnackbarAnimationSlideFromLeftToRight
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case TTGSnackbarAnimationSlideFromRightToLeft
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}
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public class TTGSnackbar: UIView {
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// Current instance
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private static var currentInstance: TTGSnackbar? = nil
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@@ -24,7 +32,7 @@ public class TTGSnackbar: UIView {
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private static let snackbarBottomMargin: CGFloat = 4
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private static let snackbarHorizonMargin: CGFloat = 4
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private static let snackbarActionButtonWidth: CGFloat = 64
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// Callback block type
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public typealias TTGActionBlock = (snackbar: TTGSnackbar) -> Void
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public typealias TTGDismissBlock = (snackbar: TTGSnackbar) -> Void
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@@ -33,6 +41,7 @@ public class TTGSnackbar: UIView {
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public var actionBlock: TTGActionBlock? = nil
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public var dismissBlock: TTGDismissBlock? = nil
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public var duration: TTGSnackbarDuration = TTGSnackbarDuration.TTGSnackbarDurationShort
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public var animationType: TTGSnackbarAnimationType = TTGSnackbarAnimationType.TTGSnackbarAnimationSlideFromBottomBackToBottom
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public var message: String = "" {
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didSet {
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self.messageLabel.text = message
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@@ -60,9 +69,11 @@ public class TTGSnackbar: UIView {
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private var actionButton: UIButton!
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private var activityIndicatorView: UIActivityIndicatorView!
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private var dismissTimer: NSTimer? = nil
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private var bottomMarginConstraint: NSLayoutConstraint? = nil // For snackbar show/Hide animation
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private var centerXConstraint: NSLayoutConstraint? = nil
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private var bottomMarginConstraint: NSLayoutConstraint? = nil
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private var actionButtonWidthConstraint: NSLayoutConstraint? = nil // Action button width
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// --Public init--
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public init(message: String, duration: TTGSnackbarDuration) {
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super.init(frame: CGRectMake(0, 0, 0, 0))
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@@ -70,7 +81,7 @@ public class TTGSnackbar: UIView {
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self.message = message
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configure()
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}
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public init(message: String, duration: TTGSnackbarDuration, actionText: String, actionBlock: TTGActionBlock) {
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super.init(frame: CGRectMake(0, 0, 0, 0))
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self.duration = duration
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@@ -83,76 +94,70 @@ public class TTGSnackbar: UIView {
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public required init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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// --Public methods--
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public func show() {
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// Only show once
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if self.superview != nil {
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return
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}
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// Dismiss last bar
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TTGSnackbar.currentInstance?.dismissAnimated(false)
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// Save current show instance
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TTGSnackbar.currentInstance = self
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// Create dismiss timer
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dismissTimer = NSTimer.scheduledTimerWithTimeInterval(duration.rawValue, target: self, selector: "dismiss", userInfo: nil, repeats: false)
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// Show or hide action button
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actionButton.hidden = actionText.isEmpty || actionBlock == nil
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seperateView.hidden = actionButton.hidden
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actionButtonWidthConstraint?.constant = actionButton.hidden ? 0 : TTGSnackbar.snackbarActionButtonWidth
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// Find current stop viewcontroller
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if let topController = getTopViewController() {
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let superView: UIView = topController.view
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superView.addSubview(self)
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// Horizontal constraints
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let hConstraints: [NSLayoutConstraint] =
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NSLayoutConstraint.constraintsWithVisualFormat(
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"H:|-snackbarHorizonMargin-[self]-snackbarHorizonMargin-|",
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options: NSLayoutFormatOptions(rawValue: 0),
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metrics: ["snackbarHorizonMargin": TTGSnackbar.snackbarHorizonMargin],
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views: ["self": self])
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// Snackbar height constraint
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let heightConstraint: NSLayoutConstraint = NSLayoutConstraint.init(item: self, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: TTGSnackbar.snackbarHeight)
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// Bottom margin constraint for animation
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bottomMarginConstraint = NSLayoutConstraint.init(item: self, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.Equal, toItem: superview, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: TTGSnackbar.snackbarHeight)
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// Snackbar width constraint
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let widthConstraint: NSLayoutConstraint = NSLayoutConstraint.init(item: self, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: superView.bounds.width - 2 * TTGSnackbar.snackbarHorizonMargin)
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// Center X constraint
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centerXConstraint = NSLayoutConstraint.init(item: self, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: superView, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0)
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// Bottom margin constraint
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bottomMarginConstraint = NSLayoutConstraint.init(item: self, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.Equal, toItem: superview, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0)
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// Add constraints
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self.addConstraint(heightConstraint)
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self.addConstraint(widthConstraint)
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superView.addConstraint(bottomMarginConstraint!)
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superView.addConstraints(hConstraints)
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superView.layoutIfNeeded()
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// Show with animation
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bottomMarginConstraint?.constant = -TTGSnackbar.snackbarBottomMargin
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self.setNeedsLayout()
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UIView.animateWithDuration(TTGSnackbar.snackbarAnimationDuration, animations: { () -> Void in
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self.layoutIfNeeded()
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}, completion: nil)
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superView.addConstraint(centerXConstraint!)
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// Show
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showWithAnimation()
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}
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}
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public func dismiss() {
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// On main thread
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dispatch_async(dispatch_get_main_queue()) { () -> Void in
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self.dismissAnimated(true)
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}
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}
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// --Private methods--
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private func configure() {
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self.translatesAutoresizingMaskIntoConstraints = false
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self.backgroundColor = UIColor.init(white: 0, alpha: 0.8)
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self.layer.cornerRadius = 4
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self.layer.masksToBounds = true
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messageLabel = UILabel()
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messageLabel.translatesAutoresizingMaskIntoConstraints = false
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messageLabel.textColor = UIColor.whiteColor()
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@@ -161,7 +166,7 @@ public class TTGSnackbar: UIView {
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messageLabel.textAlignment = NSTextAlignment.Left
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messageLabel.text = message
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self.addSubview(messageLabel)
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actionButton = UIButton()
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actionButton.translatesAutoresizingMaskIntoConstraints = false
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actionButton.backgroundColor = UIColor.clearColor()
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@@ -170,58 +175,58 @@ public class TTGSnackbar: UIView {
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actionButton.setTitleColor(UIColor.whiteColor(), forState: UIControlState.Normal)
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actionButton.addTarget(self, action: Selector("doAction"), forControlEvents: UIControlEvents.TouchUpInside)
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self.addSubview(actionButton)
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seperateView = UIView()
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seperateView.translatesAutoresizingMaskIntoConstraints = false
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seperateView.backgroundColor = UIColor.grayColor()
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self.addSubview(seperateView)
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activityIndicatorView = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.White)
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activityIndicatorView.translatesAutoresizingMaskIntoConstraints = false
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activityIndicatorView.stopAnimating()
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self.addSubview(activityIndicatorView)
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// Add constraints
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let hConstraints: [NSLayoutConstraint] = NSLayoutConstraint.constraintsWithVisualFormat(
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"H:|-snackbarHorizonMargin-[messageLabel]-[seperateView(1)]-[actionButton]-snackbarHorizonMargin-|",
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options: NSLayoutFormatOptions(rawValue: 0),
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metrics: ["snackbarHorizonMargin": TTGSnackbar.snackbarHorizonMargin],
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views: ["messageLabel": messageLabel, "seperateView": seperateView, "actionButton": actionButton])
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let vConstraintsForMessageLabel: [NSLayoutConstraint] = NSLayoutConstraint.constraintsWithVisualFormat(
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"V:|-[messageLabel]-|",
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options: NSLayoutFormatOptions(rawValue: 0),
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metrics: nil,
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views: ["messageLabel": messageLabel])
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let vConstraintsForSeperateView: [NSLayoutConstraint] = NSLayoutConstraint.constraintsWithVisualFormat(
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"V:|-[seperateView]-|",
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options: NSLayoutFormatOptions(rawValue: 0),
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metrics: nil,
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views: ["seperateView": seperateView])
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let vConstraintsForActionButton: [NSLayoutConstraint] = NSLayoutConstraint.constraintsWithVisualFormat(
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"V:|-[actionButton]-|",
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options: NSLayoutFormatOptions(rawValue: 0),
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metrics: nil,
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views: ["actionButton": actionButton])
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actionButtonWidthConstraint = NSLayoutConstraint.init(
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item: actionButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal,
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toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: TTGSnackbar.snackbarActionButtonWidth)
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let vConstraintsForActivityIndicatorView: [NSLayoutConstraint] = NSLayoutConstraint.constraintsWithVisualFormat(
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"V:|-(2)-[activityIndicatorView]-(2)-|",
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options: NSLayoutFormatOptions(rawValue: 0),
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metrics: nil,
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views: ["activityIndicatorView": activityIndicatorView])
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let hConstraintsForActivityIndicatorView: [NSLayoutConstraint] = NSLayoutConstraint.constraintsWithVisualFormat(
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"H:[activityIndicatorView(activityIndicatorWidth)]-(2)-|",
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options: NSLayoutFormatOptions(rawValue: 0),
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metrics: ["activityIndicatorWidth": TTGSnackbar.snackbarHeight - 4],
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views: ["activityIndicatorView": activityIndicatorView])
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self.addConstraints(hConstraints)
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self.addConstraints(vConstraintsForMessageLabel)
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self.addConstraints(vConstraintsForSeperateView)
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@@ -230,12 +235,12 @@ public class TTGSnackbar: UIView {
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self.addConstraints(hConstraintsForActivityIndicatorView)
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actionButton.addConstraint(actionButtonWidthConstraint!)
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}
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private func invalidDismissTimer() {
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dismissTimer?.invalidate()
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dismissTimer = nil
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}
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private func getTopViewController() -> UIViewController? {
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var topController: UIViewController? = UIApplication.sharedApplication().keyWindow?.rootViewController
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while topController?.presentedViewController != nil {
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@@ -243,32 +248,92 @@ public class TTGSnackbar: UIView {
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}
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return topController
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}
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private func dismissAnimated(animated: Bool) {
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invalidDismissTimer()
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activityIndicatorView.stopAnimating()
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TTGSnackbar.currentInstance = nil
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if animated {
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bottomMarginConstraint?.constant = TTGSnackbar.snackbarHeight
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self.setNeedsLayout()
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UIView.animateWithDuration(TTGSnackbar.snackbarAnimationDuration, animations: { () -> Void in
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self.layoutIfNeeded()
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}, completion: { (Bool finished) -> Void in
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self.dismissBlock?(snackbar: self)
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self.removeFromSuperview()
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})
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} else {
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if !animated {
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dismissBlock?(snackbar: self)
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self.removeFromSuperview()
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return
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}
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var animationBlock: (() -> Void)? = nil
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switch animationType {
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case .TTGSnackbarAnimationFadeInFadeOut:
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animationBlock = {self.alpha = 0.0}
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case .TTGSnackbarAnimationSlideFromBottomBackToBottom:
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bottomMarginConstraint?.constant = TTGSnackbar.snackbarHeight
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case .TTGSnackbarAnimationSlideFromBottomToTop:
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animationBlock = {self.alpha = 0.0}
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bottomMarginConstraint?.constant = -TTGSnackbar.snackbarHeight - TTGSnackbar.snackbarBottomMargin
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case .TTGSnackbarAnimationSlideFromLeftToRight:
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centerXConstraint?.constant = superview!.bounds.width
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case .TTGSnackbarAnimationSlideFromRightToLeft:
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centerXConstraint?.constant = -superview!.bounds.width
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}
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self.setNeedsLayout()
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UIView.animateWithDuration(TTGSnackbar.snackbarAnimationDuration,
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delay: 0, usingSpringWithDamping: 1, initialSpringVelocity: 0.2, options: UIViewAnimationOptions.CurveEaseIn,
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animations: { () -> Void in
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animationBlock?()
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self.layoutIfNeeded()
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}) { (finished) -> Void in
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self.dismissBlock?(snackbar: self)
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self.removeFromSuperview()
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}
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}
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private func showWithAnimation() {
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var animationBlock: (() -> Void)? = nil
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switch animationType {
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case .TTGSnackbarAnimationFadeInFadeOut:
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bottomMarginConstraint?.constant = -TTGSnackbar.snackbarBottomMargin
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self.layoutIfNeeded()
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self.alpha = 0.0
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animationBlock = {self.alpha = 1.0}
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case .TTGSnackbarAnimationSlideFromBottomBackToBottom, .TTGSnackbarAnimationSlideFromBottomToTop:
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// Init
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bottomMarginConstraint?.constant = TTGSnackbar.snackbarHeight
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self.layoutIfNeeded()
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// Animation
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bottomMarginConstraint?.constant = -TTGSnackbar.snackbarBottomMargin
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case .TTGSnackbarAnimationSlideFromLeftToRight:
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// Init
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centerXConstraint?.constant = -superview!.bounds.width
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bottomMarginConstraint?.constant = -TTGSnackbar.snackbarBottomMargin
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self.layoutIfNeeded()
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// Animation
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centerXConstraint?.constant = 0
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case .TTGSnackbarAnimationSlideFromRightToLeft:
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// Init
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centerXConstraint?.constant = superview!.bounds.width
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bottomMarginConstraint?.constant = -TTGSnackbar.snackbarBottomMargin
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self.layoutIfNeeded()
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// Animation
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centerXConstraint?.constant = 0
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}
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self.setNeedsLayout()
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UIView.animateWithDuration(TTGSnackbar.snackbarAnimationDuration,
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delay: 0, usingSpringWithDamping: 0.8, initialSpringVelocity: 0, options: UIViewAnimationOptions.CurveEaseInOut,
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animations: { () -> Void in
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animationBlock?()
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self.layoutIfNeeded()
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}, completion: nil)
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}
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// Button action
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func doAction() {
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// Call action block first
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actionBlock?(snackbar: self)
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// Show activity indicator
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if duration == TTGSnackbarDuration.TTGSnackbarDurationForever && actionButton.hidden == false{
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actionButton.hidden = true
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