mirror of https://github.com/oxen-io/session-ios
refactor disappearing timer view from objc to swift
Ryan Zhao
8 months ago
parent
5569da0874
commit
61df9e2cf1
@ -0,0 +1,85 @@
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// Copyright © 2023 Rangeproof Pty Ltd. All rights reserved.
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import UIKit
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import SessionSnodeKit
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class DisappearingMessageTimerView: UIView {
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private var initialDurationSeconds: Int32 = 0
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private var expirationTimestampMs: Int64 = 0
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// MARK: - Animation
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private var animationTimer: Timer?
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private var progress: Int = 12 // 0 == about to expire, 12 == just started countdown.
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// MARK: - UI
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private var iconImageView: UIImageView = {
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let result: UIImageView = UIImageView()
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result.set(.width, to: 9)
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result.set(.height, to: 9)
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return result
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}()
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// MARK: - Lifecycle
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init() {
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super.init(frame: CGRect.zero)
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self.addSubview(iconImageView)
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iconImageView.pin(to: self)
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}
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override init(frame: CGRect) {
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preconditionFailure("Use init(viewItem:textColor:) instead.")
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}
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required init?(coder: NSCoder) {
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preconditionFailure("Use init(viewItem:textColor:) instead.")
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}
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public func configure(expirationTimestampMs: Int64, initialDurationSeconds: Int32) {
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self.expirationTimestampMs = expirationTimestampMs
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self.initialDurationSeconds = initialDurationSeconds
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self.updateProgress()
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self.startAnimation()
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}
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@objc private func updateProgress() {
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guard self.expirationTimestampMs > 0 else {
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self.progress = 12
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return
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}
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let timestampMs: Int64 = SnodeAPI.currentOffsetTimestampMs()
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let secondsLeft: Double = max(Double(self.expirationTimestampMs - timestampMs) / 1000, 0)
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let progressRatio: Double = self.initialDurationSeconds > 0 ? secondsLeft / Double(self.initialDurationSeconds) : 0
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self.progress = Int(round(min(progressRatio, 1) * 12))
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self.updateIcon()
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}
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private func updateIcon() {
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let imageName: String = "disappearing_message_\(String(format: "%02d", 5 * self.progress))"
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self.iconImageView.image = UIImage(named: imageName)?.withRenderingMode(.alwaysTemplate)
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}
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private func startAnimation() {
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self.clearAnimation()
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self.animationTimer = Timer.weakScheduledTimer(
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withTimeInterval: 0.1,
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target: self,
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selector: #selector(updateProgress),
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userInfo: nil,
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repeats: true
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)
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}
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private func clearAnimation() {
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self.animationTimer?.invalidate()
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self.animationTimer = nil
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}
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public func prepareForReuse() {
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self.clearAnimation()
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}
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}
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