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[ios] refactor Toast class and improve toast message style
1. update style: bigger fonts and insets 2. update background blur 3. get rid of MWM prefix 4. replace the timer with the simplier dispatch async after. In this case there is no needed to create a timer for each toasts message just to add a timeout 5. reorder Toast class methods 6. replace the instance `show` method with a `static show`. Because there non needed to call show every time. We do not have stored toast that will be showed in different places thane created. Signed-off-by: Kiryl Kaveryn <kirylkaveryn@gmail.com> Signed-off-by: Kiryl Kaveryn <kirylkaveryn@gmail.com>
This commit is contained in:
Kiryl Kaveryn
committed by
Konstantin Pastbin
Konstantin Pastbin
parent
72cc4bbd50
commit
103d660603
@@ -1,101 +1,112 @@
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@objc(MWMToast)
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@objc
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final class Toast: NSObject {
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@objc(MWMToastAlignment)
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@objc
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enum Alignment: Int {
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case bottom
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case top
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}
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private var blurView = UIVisualEffectView(effect: UIBlurEffect(style: .dark))
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private var timer: Timer?
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private enum Constants {
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static let presentationDuration: TimeInterval = 3
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static let animationDuration: TimeInterval = kDefaultAnimationDuration
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static let bottomOffset: CGFloat = 63
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static let topOffset: CGFloat = 50
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static let horizontalOffset: CGFloat = 16
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static let labelOffsets = UIEdgeInsets(top: 10, left: 14, bottom: -10, right: -14)
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static let maxWidth: CGFloat = 400
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}
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private static var toasts: [Toast] = []
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private var blurView: UIVisualEffectView
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@objc static func toast(withText text: String) -> Toast {
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let toast = Toast(text)
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toasts.append(toast)
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return toast
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}
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@objc static func hideAll() {
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toasts.forEach { $0.hide() }
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}
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private init(_ text: String) {
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blurView.layer.setCornerRadius(.buttonDefault)
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blurView.clipsToBounds = true
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blurView = UIVisualEffectView(effect: UIBlurEffect(style: .dark))
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blurView.setStyle(.toastBackground)
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blurView.isUserInteractionEnabled = false
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blurView.alpha = 0
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blurView.translatesAutoresizingMaskIntoConstraints = false
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let label = UILabel()
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label.text = text
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label.textAlignment = .center
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label.setStyle(.toastLabel)
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label.numberOfLines = 0
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label.font = .regular14()
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label.textColor = .white
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label.translatesAutoresizingMaskIntoConstraints = false
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label.setContentHuggingPriority(.defaultLow, for: .horizontal)
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blurView.contentView.addSubview(label)
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blurView.isUserInteractionEnabled = false
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NSLayoutConstraint.activate([
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label.leadingAnchor.constraint(equalTo: blurView.contentView.leadingAnchor, constant: 8),
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label.trailingAnchor.constraint(equalTo: blurView.contentView.trailingAnchor, constant: -8),
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label.topAnchor.constraint(equalTo: blurView.contentView.topAnchor, constant: 8),
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label.bottomAnchor.constraint(equalTo: blurView.contentView.bottomAnchor, constant: -8)
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label.leadingAnchor.constraint(equalTo: blurView.contentView.leadingAnchor, constant: Constants.labelOffsets.left),
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label.trailingAnchor.constraint(equalTo: blurView.contentView.trailingAnchor, constant: Constants.labelOffsets.right),
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label.topAnchor.constraint(equalTo: blurView.contentView.topAnchor, constant: Constants.labelOffsets.top),
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label.bottomAnchor.constraint(equalTo: blurView.contentView.bottomAnchor, constant: Constants.labelOffsets.bottom)
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])
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}
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deinit {
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timer?.invalidate()
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// MARK: - Public methods
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@objc
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static func show(withText text: String) {
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show(withText: text, alignment: .bottom)
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}
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@objc func show() {
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show(in: UIApplication.shared.keyWindow, alignment: .bottom)
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@objc
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static func show(withText text: String, alignment: Alignment) {
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show(withText: text, alignment: alignment, pinToSafeArea: true)
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}
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@objc func show(withAlignment alignment: Alignment, pinToSafeArea: Bool = true) {
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show(in: UIApplication.shared.keyWindow, alignment: alignment, pinToSafeArea: pinToSafeArea)
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@objc
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static func show(withText text: String, alignment: Alignment, pinToSafeArea: Bool) {
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let toast = Toast(text)
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toasts.append(toast)
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toast.show(withAlignment: alignment, pinToSafeArea: pinToSafeArea)
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}
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@objc func show(in view: UIView?, alignment: Alignment, pinToSafeArea: Bool = true) {
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guard let view = view else { return }
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blurView.translatesAutoresizingMaskIntoConstraints = false
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@objc
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static func hideAll() {
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toasts.forEach { $0.hide() }
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}
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// MARK: - Private methods
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private func show(withAlignment alignment: Alignment, pinToSafeArea: Bool) {
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Self.hideAll()
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guard let view = UIApplication.shared.keyWindow else { return }
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view.addSubview(blurView)
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let leadingConstraint = blurView.leadingAnchor.constraint(greaterThanOrEqualTo: view.leadingAnchor, constant: 16)
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let trailingConstraint = blurView.trailingAnchor.constraint(lessThanOrEqualTo: view.trailingAnchor, constant: -16)
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let leadingConstraint = blurView.leadingAnchor.constraint(greaterThanOrEqualTo: view.leadingAnchor, constant: Constants.horizontalOffset)
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let trailingConstraint = blurView.trailingAnchor.constraint(lessThanOrEqualTo: view.trailingAnchor, constant: -Constants.horizontalOffset)
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let maxWidthConstraint = blurView.widthAnchor.constraint(equalToConstant: Constants.maxWidth).withPriority(.defaultLow)
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let verticalConstraint: NSLayoutConstraint
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switch alignment {
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case .bottom:
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verticalConstraint = blurView.bottomAnchor.constraint(equalTo: pinToSafeArea ? view.safeAreaLayoutGuide.bottomAnchor : view.bottomAnchor,
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constant: -Constants.bottomOffset)
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case .top:
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verticalConstraint = blurView.topAnchor.constraint(equalTo: pinToSafeArea ? view.safeAreaLayoutGuide.topAnchor : view.topAnchor,
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constant: Constants.topOffset)
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}
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NSLayoutConstraint.activate([
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leadingConstraint,
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trailingConstraint
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])
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let topConstraint: NSLayoutConstraint
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if alignment == .bottom {
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topConstraint = blurView.bottomAnchor.constraint(equalTo: pinToSafeArea ? view.safeAreaLayoutGuide.bottomAnchor : view.bottomAnchor, constant: -63)
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} else {
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topConstraint = blurView.topAnchor.constraint(equalTo: pinToSafeArea ? view.safeAreaLayoutGuide.topAnchor : view.topAnchor, constant: 50)
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}
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NSLayoutConstraint.activate([
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topConstraint,
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trailingConstraint,
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maxWidthConstraint,
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verticalConstraint,
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blurView.centerXAnchor.constraint(equalTo: pinToSafeArea ? view.safeAreaLayoutGuide.centerXAnchor : view.centerXAnchor)
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])
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UIView.animate(withDuration: kDefaultAnimationDuration) {
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UIView.animate(withDuration: Constants.animationDuration, animations: {
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self.blurView.alpha = 1
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}
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timer = Timer.scheduledTimer(timeInterval: 3,
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target: self,
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selector: #selector(hide),
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userInfo: nil,
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repeats: false)
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} , completion: { _ in
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DispatchQueue.main.asyncAfter(deadline: .now() + Constants.presentationDuration) {
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self.hide()
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}
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})
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}
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@objc func hide() {
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timer?.invalidate()
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private func hide() {
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if self.blurView.superview != nil {
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UIView.animate(withDuration: kDefaultAnimationDuration,
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UIView.animate(withDuration: Constants.animationDuration,
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animations: { self.blurView.alpha = 0 }) { [self] _ in
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self.blurView.removeFromSuperview()
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Self.toasts.removeAll(where: { $0 === self }) }
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