最初，我显示一个警报，当单击"is"时，它将显示第二个警报，在第二个警报中，当用户按下重置时，我想显示进度 View ，并且此进度 View 中的调用服务不显示仅发生服务调用，我想还显示进度 View ，那么在第二个警报中按“确定”后如何显示进度 View ？
func makeServiceCall()
{
Utility.showGlobalProgressHUD(withTitle: "Loading...")
HTTPRequest.serviceReq(newPin: "129354") { (ResetModel) in
Utility.dismissGlobalHUDInMainThread()
Utility.showAlertMessageInMainThread(title: " Reset", msg: "Your request to reset has been successfully completed.")
}
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath)
{
Utility.confirmationActionSheetMsg(title: "First Alert", msg: "alertMsg", okActionTitle: "Yes", cancelActionTitle: "Cancel", success:
{
Utility.showAlertViewWithTextField(title: "Second Alert", msg: "alertMsg", okActionTitle: "Reset", cancelActionTitle: "Cancel", success: {
self.makeServiceCall()
}, cancel: {
print("Canceled by user")
})
}
}) {
print("cancel")
}
}
实用程序文件是 -
class Utility{
static func showGlobalProgressHUD(withTitle title: String?) -> MBProgressHUD?
{
let window: UIWindow? = UIApplication.shared.windows.last
let hud = MBProgressHUD.showAdded(to: window, animated: true)
hud?.labelText = title
hud?.dimBackground = true
hud?.cornerRadius = 7
hud?.margin = 30
hud?.detailsLabelFont = UIFont.boldSystemFont(ofSize: 15)
window?.isUserInteractionEnabled = true
hud?.isUserInteractionEnabled = true;
return hud
}
static func confirmationActionSheetMsg(title: String, msg: String, okActionTitle:String, cancelActionTitle:String, success: (() -> Void)? , cancel: (() -> Void)?)
{
let alert = UIAlertController(title: title, message: msg, preferredStyle: UIAlertController.Style.actionSheet)
let successAction: UIAlertAction = UIAlertAction(title: okActionTitle, style: .destructive)
{
action -> Void in
success?()
}
let cancelAction: UIAlertAction = UIAlertAction(title: cancelActionTitle, style: .cancel)
{
action -> Void in
cancel?()
}
alert.addAction(successAction)
alert.addAction(cancelAction)
UIApplication.shared.keyWindow?.rootViewController?.present(alert, animated: true, completion: nil)
}
static func showAlertViewWithTextField(title: String, msg: String, okActionTitle:String, cancelActionTitle:String, success: (() -> Void)? , cancel: (() -> Void)?)
{
let alert = UIAlertController(title: title, message: msg, preferredStyle: UIAlertController.Style.alert)
alert.addTextField { (textField) in
textField.placeholder = "Enter new pin."
}
alert.addTextField { (textField) in
textField.placeholder = "Confirm new pin."
}
let successAction: UIAlertAction = UIAlertAction(title: okActionTitle, style: .destructive)
{
action -> Void in
let textOfFirstTextfield = alert.textFields?[0].text
print(textOfFirstTextfield)
success?()
}
let cancelAction: UIAlertAction = UIAlertAction(title: cancelActionTitle, style: .cancel)
{
action -> Void in
cancel?()
}
alert.addAction(successAction)
alert.addAction(cancelAction)
UIApplication.shared.keyWindow?.rootViewController?.present(alert, animated: true, completion: nil)
}
}
最佳答案
当我在显示 hud 时延迟而不是在关闭 hud 时延迟时，它起作用了
func makeServiceCall()
{
DispatchQueue.main.asyncAfter(deadline: .now() + 0.1){
Utility.showGlobalProgressHUD(withTitle: "Loading...")
HTTPRequest.serviceReq(newPin: "129354") { (ResetModel) in
Utility.dismissGlobalHUDInMainThread()
Utility.showAlertMessageInMainThread(title: " Reset", msg: "Your request to reset has been successfully completed.")
}
}
}
关于ios - 从第二个警报 View 中按“确定”时，进度平视显示器不显示，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59409388/