mirror of https://github.com/oxen-io/session-ios
add footer title for group disappearing messages setting
Ryan Zhao
2 years ago
parent
2ad8041b59
commit
715b4f6d4d
@ -0,0 +1,89 @@
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// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
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import UIKit
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import SessionUIKit
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class SessionFooterView: UITableViewHeaderFooterView {
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private lazy var emptyHeightConstraint: NSLayoutConstraint = self.heightAnchor
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.constraint(equalToConstant: (Values.verySmallSpacing * 2))
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private lazy var filledHeightConstraint: NSLayoutConstraint = self.heightAnchor
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.constraint(greaterThanOrEqualToConstant: Values.mediumSpacing)
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// MARK: - UI
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private let stackView: UIStackView = {
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let result: UIStackView = UIStackView()
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result.translatesAutoresizingMaskIntoConstraints = false
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result.axis = .vertical
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result.distribution = .fill
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result.alignment = .fill
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result.isLayoutMarginsRelativeArrangement = true
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return result
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}()
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private let titleLabel: UILabel = {
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let result: UILabel = UILabel()
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result.translatesAutoresizingMaskIntoConstraints = false
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result.font = .systemFont(ofSize: Values.verySmallFontSize)
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result.textAlignment = .center
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result.numberOfLines = 0
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result.themeTextColor = .textSecondary
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return result
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}()
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// MARK: - Initialization
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override init(reuseIdentifier: String?) {
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super.init(reuseIdentifier: reuseIdentifier)
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self.backgroundView = UIView()
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self.backgroundView?.themeBackgroundColor = .backgroundPrimary
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addSubview(stackView)
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stackView.addArrangedSubview(titleLabel)
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setupLayout()
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}
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required init?(coder: NSCoder) {
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fatalError("use init(reuseIdentifier:) instead")
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}
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private func setupLayout() {
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stackView.pin(to: self)
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}
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// MARK: - Content
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public func update(
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style: SessionCell.Style = .rounded,
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title: String?
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) {
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let titleIsEmpty: Bool = (title ?? "").isEmpty
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let edgePadding: CGFloat = {
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switch style {
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case .rounded:
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// Align to the start of the text in the cell
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return (Values.largeSpacing + Values.mediumSpacing)
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case .edgeToEdge, .roundedEdgeToEdge: return Values.largeSpacing
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}
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}()
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titleLabel.text = title
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titleLabel.isHidden = titleIsEmpty
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stackView.layoutMargins = UIEdgeInsets(
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top: (titleIsEmpty ? Values.verySmallSpacing : Values.mediumSpacing),
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left: edgePadding,
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bottom: (titleIsEmpty ? Values.verySmallSpacing : Values.mediumSpacing),
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right: edgePadding
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)
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emptyHeightConstraint.isActive = titleIsEmpty
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filledHeightConstraint.isActive = !titleIsEmpty
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self.layoutIfNeeded()
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}
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}
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