[英]How to implement UIActivityIndicator with swipe to delete for Table View Cell
I have a table view with swipe to delete functionality. 我有一个滑动删除功能的表格视图。 As soon as I tap delete I want the activity indicator to start animating for that cell and once the background network call is finished I want to stop animation.
当我点击删除时,我希望活动指示器开始对该单元进行动画处理,一旦后台网络通话结束,我想停止动画播放。
Below is my code. 下面是我的代码。 Activity Indicator doesn't work.
活动指示器不起作用。
override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == .delete {
let r = self.tableView(tableView, cellForRowAt: indexPath)
let indicator = r.viewWithTag(136) as! UIActivityIndicatorView
indicator.startAnimating()
let user = fetchedResultsController.object(at: indexPath) as! SharableUser
deletee(user: user){
self.managedObjectContext.performAndWait {
DispatchQueue.main.sync {
indicator.stopAnimating()
}
}
user.accept = 0
saveData(inContext: self.managedObjectContext)
}
}
}
}
Replace 更换
let r = self.tableView(tableView, cellForRowAt: indexPath)
with 同
let r = self.tableView.cellForRow(at: indexPath)!
and it's better to make outlet than using view tags 而且制作插座比使用视图标签更好
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