Michael Scoff
7 years ago
parent
8b8ca20160
commit
b07e158a10
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// Copyright SIX DAY LLC, Inc. All rights reserved. |
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import Foundation |
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import UIKit |
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class TokenViewCell: UITableViewCell { |
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static let identifier = "TokenViewCell" |
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let titleLabel = UILabel() |
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let amountLabel = UILabel() |
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let symbolImageView = UIImageView() |
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let subTitleLabel = UILabel() |
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override init(style: UITableViewCellStyle, reuseIdentifier: String?) { |
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super.init(style: style, reuseIdentifier: reuseIdentifier) |
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titleLabel.translatesAutoresizingMaskIntoConstraints = false |
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subTitleLabel.translatesAutoresizingMaskIntoConstraints = false |
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subTitleLabel.lineBreakMode = .byTruncatingMiddle |
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symbolImageView.translatesAutoresizingMaskIntoConstraints = false |
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symbolImageView.image = R.image.accountsSwitch() |
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amountLabel.textAlignment = .right |
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amountLabel.translatesAutoresizingMaskIntoConstraints = false |
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let leftStackView = UIStackView(arrangedSubviews: [titleLabel, subTitleLabel]) |
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leftStackView.translatesAutoresizingMaskIntoConstraints = false |
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leftStackView.axis = .vertical |
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leftStackView.spacing = 6 |
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let rightStackView = UIStackView(arrangedSubviews: [amountLabel]) |
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rightStackView.translatesAutoresizingMaskIntoConstraints = false |
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rightStackView.axis = .vertical |
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let stackView = UIStackView(arrangedSubviews: [symbolImageView, leftStackView, rightStackView]) |
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stackView.translatesAutoresizingMaskIntoConstraints = false |
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stackView.axis = .horizontal |
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stackView.spacing = 10 |
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stackView.distribution = .fill |
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symbolImageView.setContentHuggingPriority(UILayoutPriorityDefaultLow, for: .horizontal) |
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titleLabel.setContentHuggingPriority(UILayoutPriorityDefaultLow, for: .horizontal) |
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amountLabel.setContentHuggingPriority(UILayoutPriorityRequired, for: .horizontal) |
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stackView.setContentHuggingPriority(UILayoutPriorityRequired, for: .horizontal) |
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addSubview(stackView) |
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NSLayoutConstraint.activate([ |
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stackView.topAnchor.constraint(equalTo: topAnchor, constant: Layout.sideMargin), |
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stackView.trailingAnchor.constraint(equalTo: trailingAnchor, constant: -Layout.sideMargin), |
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stackView.bottomAnchor.constraint(lessThanOrEqualTo: bottomAnchor, constant: -Layout.sideMargin), |
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stackView.leadingAnchor.constraint(equalTo: leadingAnchor, constant: Layout.sideMargin), |
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]) |
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} |
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required init?(coder aDecoder: NSCoder) { |
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fatalError("init(coder:) has not been implemented") |
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} |
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func configure(viewModel: TokenViewCellViewModel) { |
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titleLabel.text = viewModel.title |
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amountLabel.text = viewModel.amount |
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amountLabel.textColor = viewModel.amountTextColor |
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amountLabel.font = viewModel.amountFont |
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subTitleLabel.text = viewModel.subTitle |
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subTitleLabel.textColor = viewModel.subTitleTextColor |
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subTitleLabel.font = viewModel.subTitleFont |
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backgroundColor = viewModel.backgroundColor |
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} |
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} |
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@ -0,0 +1,45 @@ |
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// Copyright SIX DAY LLC, Inc. All rights reserved. |
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import Foundation |
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import UIKit |
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struct TokenViewCellViewModel { |
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let token: Token |
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init(token: Token) { |
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self.token = token |
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} |
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var title: String { |
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return token.name |
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} |
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var amount: String { |
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return "\(token.balance)" |
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} |
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var amountTextColor: UIColor { |
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return Colors.black |
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} |
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var amountFont: UIFont { |
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return UIFont.systemFont(ofSize: 17, weight: UIFontWeightMedium) |
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} |
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var subTitle: String { |
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return token.symbol |
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} |
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var subTitleTextColor: UIColor { |
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return Colors.gray |
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} |
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var subTitleFont: UIFont { |
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return UIFont.systemFont(ofSize: 12, weight: UIFontWeightThin) |
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} |
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var backgroundColor: UIColor { |
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return .white |
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} |
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} |
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@ -0,0 +1,37 @@ |
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// Copyright SIX DAY LLC, Inc. All rights reserved. |
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import Foundation |
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import Result |
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import APIKit |
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protocol TokensDataStoreDelegate: class { |
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func didUpdate(result: Result<TokensViewModel, TokenError>) |
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} |
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class TokensDataStore { |
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let account: Account |
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weak var delegate: TokensDataStoreDelegate? |
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var tokens: [Token] = [] |
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init(account: Account) { |
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self.account = account |
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} |
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func update(tokens: [Token]) { |
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self.tokens = tokens |
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delegate?.didUpdate(result: .success(TokensViewModel(tokens: tokens))) |
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} |
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func fetch() { |
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let request = GetTokensRequest(address: account.address.address) |
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Session.send(request) { result in |
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switch result { |
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case .success(let response): |
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self.update(tokens: response) |
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case .failure: |
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self.delegate?.didUpdate(result: .failure(TokenError.failedToFetch)) |
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} |
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} |
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} |
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} |
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@ -0,0 +1,133 @@ |
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// Copyright SIX DAY LLC, Inc. All rights reserved. |
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import Foundation |
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import UIKit |
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import StatefulViewController |
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import Result |
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class TokensViewController: UIViewController { |
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private lazy var dataStore: TokensDataStore = { |
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return .init(account: self.account) |
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}() |
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var viewModel: TokensViewModel = TokensViewModel(tokens: []) |
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let account: Account |
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let tableView: UITableView |
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let refreshControl = UIRefreshControl() |
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init( |
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account: Account |
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) { |
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self.account = account |
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tableView = UITableView(frame: .zero, style: .plain) |
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super.init(nibName: nil, bundle: nil) |
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dataStore.delegate = self |
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tableView.translatesAutoresizingMaskIntoConstraints = false |
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tableView.delegate = self |
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tableView.dataSource = self |
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tableView.separatorStyle = .none |
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tableView.backgroundColor = .white |
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tableView.rowHeight = 72 |
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view.addSubview(tableView) |
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NSLayoutConstraint.activate([ |
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tableView.topAnchor.constraint(equalTo: view.topAnchor), |
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tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor), |
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tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor), |
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tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor), |
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]) |
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refreshControl.addTarget(self, action: #selector(pullToRefresh), for: .valueChanged) |
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tableView.addSubview(refreshControl) |
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errorView = { |
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let view = ErrorView() |
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view.onRetry = fetch |
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return view |
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}() |
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loadingView = { |
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let view = LoadingView() |
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return view |
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}() |
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emptyView = { |
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let view = EmptyView() |
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view.onRetry = fetch |
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return view |
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}() |
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title = viewModel.title |
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view.backgroundColor = viewModel.backgroundColor |
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} |
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override func viewWillAppear(_ animated: Bool) { |
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super.viewWillAppear(animated) |
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fetch() |
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} |
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func pullToRefresh() { |
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refreshControl.beginRefreshing() |
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fetch() |
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} |
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func fetch() { |
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dataStore.fetch() |
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startLoading() |
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} |
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required init?(coder aDecoder: NSCoder) { |
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fatalError("init(coder:) has not been implemented") |
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} |
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} |
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extension TokensViewController: StatefulViewController { |
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func hasContent() -> Bool { |
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return viewModel.hasContent |
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} |
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} |
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extension TokensViewController: UITableViewDelegate { |
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func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { |
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tableView.deselectRow(at: indexPath, animated: true ) |
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} |
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} |
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extension TokensViewController: TokensDataStoreDelegate { |
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func didUpdate(result: Result<TokensViewModel, TokenError>) { |
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switch result { |
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case .success(let viewModel): |
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self.viewModel = viewModel |
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endLoading() |
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case .failure(let error): |
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endLoading(error: error) |
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} |
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tableView.reloadData() |
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if refreshControl.isRefreshing { |
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refreshControl.endRefreshing() |
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} |
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} |
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} |
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extension TokensViewController: UITableViewDataSource { |
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func numberOfSections(in tableView: UITableView) -> Int { |
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return viewModel.numberOfSections |
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} |
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func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { |
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let token = viewModel.item(for: indexPath.row, section: indexPath.section) |
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let cell = TokenViewCell(style: .default, reuseIdentifier: TokenViewCell.identifier) |
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cell.configure(viewModel: .init(token: token)) |
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return cell |
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} |
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func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { |
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return viewModel.numberOfItems(for: section) |
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} |
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} |
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@ -0,0 +1,37 @@ |
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// Copyright SIX DAY LLC, Inc. All rights reserved. |
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import Foundation |
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import UIKit |
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struct TokensViewModel { |
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var tokens: [Token] = [] |
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init(tokens: [Token]) { |
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self.tokens = tokens |
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} |
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var title: String { |
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return "Tokens" |
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} |
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var backgroundColor: UIColor { |
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return .white |
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} |
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var hasContent: Bool { |
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return !tokens.isEmpty |
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} |
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var numberOfSections: Int { |
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return 1 |
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} |
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func numberOfItems(for section: Int) -> Int { |
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return tokens.count |
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} |
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func item(for row: Int, section: Int) -> Token { |
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return tokens[row] |
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} |
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} |
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