我正在尝试突出显示表格视图中的文本,以表明它已被复制。我首先将其更改为不同的颜色,然后在动画代码中将其更改为黑色。但是当我运行它时,它会在第一次更改后卡住。我使用UIColor.green进行测试。此代码运行后,颜色保持绿色。
有人能看出这有什么问题吗?
let allCells: ((UITableViewCell) -> Void) -> Void = { handler in
if let paths = self.savedTempTable.indexPathsForVisibleRows {
paths.compactMap { self.savedTempTable.cellForRow(at: $0) }.forEach { cell in
handler(cell)
}
self.savedTempTable.reloadRows(at: paths, with: .none)
}
}
UIView.animate(withDuration: 0.5,
animations: { allCells { cell in cell.textLabel?.textColor = .green } },
completion: { _ in
UIView.animate(withDuration: 0.5, animations: { allCells { cell in cell.textLabel?.textColor = .black } } )
}
)
答案 0 :(得分:2)
要为textColor
制作动画,您需要改为使用transition(with:duration:options:animations:completion:)。
for cell in tableView.visibleCells {
UIView.transition(with: cell, duration: 0.5, options: .transitionCrossDissolve, animations: {
cell.textLabel?.textColor = .green
}) { (_) in
UIView.transition(with: cell, duration: 0.5, options: .transitionCrossDissolve, animations: {
cell.textLabel?.textColor = .black
}, completion: nil)
}
}
结果
有关详细信息,请查看我的样本
https://github.com/trungducc/stackoverflow/tree/animate-label-text-color