mirror of https://github.com/oxen-io/session-ios
Add typing indicators in home view.
Matthew Chen
7 years ago
parent
b063a49d56
commit
50381cc94c
@ -0,0 +1,101 @@
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//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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@objc class TypingIndicatorView: UIStackView {
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private let kDotMaxHSpacing: CGFloat = 8
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@objc
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public static let kMinRadiusPt: CGFloat = 6
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@objc
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public static let kMaxRadiusPt: CGFloat = 8
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private let dot1 = DotView(dotType: .dotType1)
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private let dot2 = DotView(dotType: .dotType2)
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private let dot3 = DotView(dotType: .dotType3)
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override public var isHidden: Bool {
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didSet {
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Logger.verbose("\(oldValue) -> \(isHidden)")
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}
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}
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@available(*, unavailable, message:"use other constructor instead.")
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required init(coder aDecoder: NSCoder) {
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notImplemented()
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}
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@available(*, unavailable, message:"use other constructor instead.")
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override init(frame: CGRect) {
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notImplemented()
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}
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@objc
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public init() {
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super.init(frame: .zero)
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// init(arrangedSubviews:...) is not a designated initializer.
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addArrangedSubview(dot1)
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addArrangedSubview(dot2)
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addArrangedSubview(dot3)
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self.axis = .horizontal
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self.spacing = kDotMaxHSpacing
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self.alignment = .center
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}
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@objc
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public func startAnimation() {
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}
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@objc
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public func stopAnimation() {
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}
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private enum DotType {
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case dotType1
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case dotType2
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case dotType3
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}
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private class DotView: UIView {
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private let dotType: DotType
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private let shapeLayer = CAShapeLayer()
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@available(*, unavailable, message:"use other constructor instead.")
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required init?(coder aDecoder: NSCoder) {
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notImplemented()
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}
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@available(*, unavailable, message:"use other constructor instead.")
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override init(frame: CGRect) {
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notImplemented()
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}
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init(dotType: DotType) {
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self.dotType = dotType
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super.init(frame: .zero)
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autoSetDimension(.width, toSize: kMaxRadiusPt)
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autoSetDimension(.height, toSize: kMaxRadiusPt)
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self.layer.addSublayer(shapeLayer)
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updateLayer()
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// self.text = text
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//
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// setupSubviews()
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}
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private func updateLayer() {
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shapeLayer.fillColor = UIColor.ows_signalBlue.cgColor
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let margin = (TypingIndicatorView.kMaxRadiusPt - TypingIndicatorView.kMinRadiusPt) * 0.5
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let bezierPath = UIBezierPath(ovalIn: CGRect(x: margin, y: margin, width: TypingIndicatorView.kMinRadiusPt, height: TypingIndicatorView.kMinRadiusPt))
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shapeLayer.path = bezierPath.cgPath
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}
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}
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}
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