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chore: optimize the expand & scroll animation

This commit is contained in:
jk234ert 2021-02-25 17:40:11 +08:00
parent 861a70993c
commit a932749bda
2 changed files with 9 additions and 8 deletions
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11
Mastodon/Scene/PickServer/PickServerViewController.swift
View File

@ -384,11 +384,12 @@ extension PickServerViewController: PickServerCellDelegate {
expandServerDomainSet.insert(server.domain) expandServerDomainSet.insert(server.domain)
} }
tableView.performBatchUpdates(updates) { _ in tableView.beginUpdates()
// Scroll to fully show the expanded cell, do not scroll when collapse updates()
if newMode == .expand, let modeChangeIndex = self.viewModel.searchedServers.value.firstIndex(where: { $0 == server }), self.tableView.indexPathsForVisibleRows?.last?.row == modeChangeIndex { tableView.endUpdates()
self.tableView.scrollToRow(at: IndexPath(row: modeChangeIndex, section: 3), at: .bottom, animated: true)
} if newMode == .expand, let modeChangeIndex = self.viewModel.searchedServers.value.firstIndex(where: { $0 == server }), self.tableView.indexPathsForVisibleRows?.last?.row == modeChangeIndex {
self.tableView.scrollToRow(at: IndexPath(row: modeChangeIndex, section: 3), at: .bottom, animated: true)
} }
} }
} }

6
Mastodon/Scene/PickServer/TableViewCell/PickServerCell.swift
View File

@ -249,12 +249,12 @@ extension PickServerCell {
// Set expandBox constraints // Set expandBox constraints
expandBox.leadingAnchor.constraint(equalTo: bgView.leadingAnchor, constant: 16), expandBox.leadingAnchor.constraint(equalTo: bgView.leadingAnchor, constant: 16),
bgView.trailingAnchor.constraint(equalTo: expandBox.trailingAnchor, constant: 16), bgView.trailingAnchor.constraint(equalTo: expandBox.trailingAnchor, constant: 16),
expandBox.topAnchor.constraint(equalTo: descriptionLabel.bottomAnchor, constant: 8), expandBox.topAnchor.constraint(equalTo: descriptionLabel.bottomAnchor, constant: 8).priority(.defaultHigh),
expandBox.bottomAnchor.constraint(equalTo: infoStackView.bottomAnchor), expandBox.bottomAnchor.constraint(equalTo: infoStackView.bottomAnchor).priority(.defaultHigh),
thumbImageView.leadingAnchor.constraint(equalTo: expandBox.leadingAnchor), thumbImageView.leadingAnchor.constraint(equalTo: expandBox.leadingAnchor),
expandBox.trailingAnchor.constraint(equalTo: thumbImageView.trailingAnchor), expandBox.trailingAnchor.constraint(equalTo: thumbImageView.trailingAnchor),
thumbImageView.topAnchor.constraint(equalTo: expandBox.topAnchor), thumbImageView.topAnchor.constraint(equalTo: expandBox.topAnchor).priority(.defaultHigh),
thumbImageView.heightAnchor.constraint(equalTo: thumbImageView.widthAnchor, multiplier: 151.0 / 303.0).priority(.defaultHigh), thumbImageView.heightAnchor.constraint(equalTo: thumbImageView.widthAnchor, multiplier: 151.0 / 303.0).priority(.defaultHigh),
infoStackView.leadingAnchor.constraint(equalTo: expandBox.leadingAnchor), infoStackView.leadingAnchor.constraint(equalTo: expandBox.leadingAnchor),