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Asked:2022-04-23 04:17:26 +0800 CST2022-04-23 04:17:26 +0800 CST

根据从leadingSwipeActionsConfigurationForRowAt 中选择或未选择的元素替换图像

  • 772

其本质是将心的图像从空替换为填充，这取决于是否从leadingSwipeActionsConfigurationForRowAt中选择了元素（到目前为止结果只是改变了颜色）这里是代码本身

`

func favoriteActions(at indexPath: IndexPath) -> UIContextualAction {
        var object = objects[indexPath.row]
        let action = UIContextualAction(style: .normal, title: "Favorite") { (action, view, completion) in
            object.isFavorite = !object.isFavorite
            self.objects[indexPath.row] = object
            completion(true)
        }
        action.backgroundColor = object.isFavorite ? .systemGray : .systemPurple
        action.image = UIImage(systemName: "suit.heart.fill")
        return action
    }

`

在此处输入图像描述

在此处输入图像描述

swift

1 个回答

  1. Best Answer

    答案原来很简单，但是到现在我还写不下三元运算符

    if object.isFavorite == true{
    action.image = UIImage(systemName: "suit.heart.fill")
} else {
    action.image = UIImage(systemName: "suit.heart")
}
    • 0

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