Kurdtvs-Live-Kurdish-TV-Kur.../Mastodon/Scene/Onboarding/PickServer/View/PickServerEmptyStateView.swift

138 lines
5.4 KiB
Swift

//
// PickServerEmptyStateView.swift
// Mastodon
//
// Created by Cirno MainasuK on 2021/3/6.
//
import UIKit
import MastodonAsset
import MastodonLocalization
final class PickServerEmptyStateView: UIView {
var topPaddingViewTopLayoutConstraint: NSLayoutConstraint!
let networkIndicatorImageView: UIImageView = {
let imageView = UIImageView()
let configuration = UIImage.SymbolConfiguration(pointSize: 64, weight: .regular)
imageView.image = UIImage(systemName: "wifi.exclamationmark", withConfiguration: configuration)
imageView.tintColor = Asset.Colors.Label.secondary.color
return imageView
}()
let activityIndicatorView = UIActivityIndicatorView(style: .medium)
let infoLabel: UILabel = {
let label = UILabel()
label.font = .systemFont(ofSize: 17)
label.textAlignment = .center
label.textColor = Asset.Colors.Label.secondary.color
label.text = "info"
label.numberOfLines = 0
return label
}()
override init(frame: CGRect) {
super.init(frame: frame)
_init()
}
required init?(coder: NSCoder) {
super.init(coder: coder)
_init()
}
}
extension PickServerEmptyStateView {
private func _init() {
backgroundColor = .clear
let topPaddingView = UIView()
topPaddingView.translatesAutoresizingMaskIntoConstraints = false
addSubview(topPaddingView)
topPaddingViewTopLayoutConstraint = topPaddingView.topAnchor.constraint(equalTo: topAnchor, constant: 0)
NSLayoutConstraint.activate([
topPaddingViewTopLayoutConstraint,
topPaddingView.leadingAnchor.constraint(equalTo: leadingAnchor),
topPaddingView.trailingAnchor.constraint(equalTo: trailingAnchor),
])
let containerStackView = UIStackView()
containerStackView.axis = .vertical
containerStackView.alignment = .center
containerStackView.distribution = .fill
containerStackView.spacing = 16
containerStackView.translatesAutoresizingMaskIntoConstraints = false
addSubview(containerStackView)
NSLayoutConstraint.activate([
containerStackView.topAnchor.constraint(equalTo: topPaddingView.bottomAnchor),
containerStackView.leadingAnchor.constraint(equalTo: leadingAnchor),
containerStackView.trailingAnchor.constraint(equalTo: trailingAnchor),
])
containerStackView.addArrangedSubview(networkIndicatorImageView)
let infoContainerStackView = UIStackView()
infoContainerStackView.axis = .horizontal
infoContainerStackView.distribution = .fill
infoContainerStackView.addArrangedSubview(activityIndicatorView)
infoContainerStackView.spacing = 4
activityIndicatorView.setContentHuggingPriority(.required - 1, for: .horizontal)
infoContainerStackView.addArrangedSubview(infoLabel)
infoLabel.setContentCompressionResistancePriority(.required - 1, for: .vertical)
infoLabel.setContentCompressionResistancePriority(.required - 1, for: .horizontal)
containerStackView.addArrangedSubview(infoContainerStackView)
let bottomPaddingView = UIView()
bottomPaddingView.translatesAutoresizingMaskIntoConstraints = false
addSubview(bottomPaddingView)
NSLayoutConstraint.activate([
bottomPaddingView.topAnchor.constraint(equalTo: containerStackView.bottomAnchor),
bottomPaddingView.leadingAnchor.constraint(equalTo: leadingAnchor),
bottomPaddingView.trailingAnchor.constraint(equalTo: trailingAnchor),
bottomPaddingView.bottomAnchor.constraint(equalTo: bottomAnchor),
])
NSLayoutConstraint.activate([
topPaddingView.heightAnchor.constraint(equalTo: bottomPaddingView.heightAnchor, multiplier: 2.5).priority(.defaultHigh), // magic scale
])
activityIndicatorView.hidesWhenStopped = true
activityIndicatorView.startAnimating()
}
}
#if DEBUG && canImport(SwiftUI)
import SwiftUI
struct PickServerEmptyStateView_Previews: PreviewProvider {
static var previews: some View {
Group {
UIViewPreview(width: 375) {
let emptyStateView = PickServerEmptyStateView()
emptyStateView.infoLabel.text = L10n.Scene.ServerPicker.EmptyState.badNetwork
emptyStateView.infoLabel.textAlignment = .center
emptyStateView.activityIndicatorView.stopAnimating()
return emptyStateView
}
.previewLayout(.fixed(width: 375, height: 150))
.previewDisplayName("Bad Network")
UIViewPreview(width: 375) {
let emptyStateView = PickServerEmptyStateView()
emptyStateView.networkIndicatorImageView.isHidden = true
emptyStateView.infoLabel.text = L10n.Scene.ServerPicker.EmptyState.findingServers
emptyStateView.infoLabel.textAlignment = UIApplication.shared.userInterfaceLayoutDirection == .rightToLeft ? .right : .left
emptyStateView.activityIndicatorView.startAnimating()
return emptyStateView
}
.previewLayout(.fixed(width: 375, height: 44))
.previewDisplayName("Loading…")
}
}
}
#endif