I need to add action in new line just like: alertActionsWithNewLines
I'm trying this code:
let uncheckInAlert = UIAlertController(title: "Are you sure you want to uncheck-in?", message: "", preferredStyle: .alert)
uncheckInAlert.setTitleImage(UIImage(named: "fail_Icon"))
uncheckInAlert.addAction(UIAlertAction(title: "Yes", style: .default, handler: { (action) -> Void in
self.userUncheckIn()
}))
uncheckInAlert.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
self.present(uncheckInAlert, animated: true, completion: nil)
But as result I have something like: alertActionsInOneLine.
If action title is large then action automatically carried over on new line. With small action title, actions is grouped in one line. Is there any a ways to do this?
There is no flag you can set in order to change how Apple lays out its alert buttons. The UIAlertController with style alert will, however, change it's button layout automatically to vertical when it cannot properly fit the entire string of the button's text in a horizontal layout. So if your button's text is long enough, it will change the layout.
Though this is a solution to your question, I don't recommend adding arbitrary spaces or unnecessarily long strings to the button's text just so Apple will layout the buttons vertically in a production app. It's misusing the standard components and could easily start breaking down once strings become localized to other languages. In order to naturally achieve the desired behavior I would suggest creating your own, custom view to display buttons vertically.
Changing these lines from
uncheckInAlert.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
To
uncheckInAlert.addAction(UIAlertAction(title: "Cancel", style: .default, handler: nil))
let uncheckInAlert = UIAlertController(title: "Are you sure you want to uncheck-in?", message: "", preferredStyle: .alert)
To
let uncheckInAlert = UIAlertController(title: "Are you sure you want to uncheck-in?", message: "", preferredStyle: .actionSheet)
This will show cancel option grouped with other options.
Try change style form .alert to .actionSheet
Like in this code
let uncheckInAlert = UIAlertController(title: "Are you sure you want to uncheck-in?", message: "", preferredStyle: .actionSheet)
Related
I'm trying to create a loop on my app to check Connectivity. So, when the app loads for the first time, the user must be connected to the internet, otherwise he cannot proceed on using the app.
However, I'm trying to create a function that while the user has no internet, the UIAlerView persists on the screen until find an internet connection, then it should be dismissed and another method be lunched. What would be the best way for me to do that?
let alert = UIAlertController(title: "Primeiro Uso", message: "Voce precisa estar conectado na internet", preferredStyle: UIAlertControllerStyle.alert)
// add the actions (buttons)
alert.addAction(UIAlertAction(title: "Estou Conectado", style: .default, handler: { action in
if Connectivity.isConnectedToInternet != true {
//How do I create a loop here until find a connection?
//I'd like to persist the UIAlerView until find a connection
}
//Once the user is connected, this code below should be
//lunched
getApiData { (cerveja) in
arrCerveja = cerveja
//Backup
do{
let data = try JSONEncoder().encode(arrCerveja)
UserDefaults.standard.set(data, forKey: "backupSaved")
//
self.tableView.reloadData()
}catch{print(error)
}
}}))
alert.addAction(UIAlertAction(title: "Cancelar", style: UIAlertActionStyle.cancel, handler: nil))
// show the alert
self.present(alert, animated: true, completion: nil)
}
you can use this answer
https://stackoverflow.com/a/3597085/2621857
in the appDelegate level of you application.
i think creating loop for checking internet, somehow will pressure the processor to memory leak so i suggest not using a kind of loop to check the internet.
i hope this will work for you .
So, I’ve got a view controller with a number of text fields on it. The first two text fields need text entered into them before submitting. I check the first two text fields and display an alert controller in case they’re empty.
let alertController = UIAlertController(title: "Error", message:
"Please enter some text.", preferredStyle: UIAlertControllerStyle.Alert)
alertController.addAction(UIAlertAction(title: "Okay", style: UIAlertActionStyle.Default,handler: nil))
self.presentViewController(alertController, animated: true, completion: nil)
This works fine, as long as the keyboard is dismissed before trying to submit the form. If the keyboard is still showing however, the app crashes with fatal 'error: unexpectedly found nil while unwrapping an Optional value'
What is happening here?
Just solved this myself by adding view.endEditing(true) before displaying the alert controller. Would still like to know why it was crashing in the first place.
If a user opens up the application without an internet connection, a window pops up that says a connection is required, and there is an ok button. I want to the ok button to exit the application. Here is what I have:
if !isConnectedToNetwork(){
let alert = UIAlertController(title: "No Internet", message: "You need an internet connection to use this app", preferredStyle: UIAlertControllerStyle.Alert)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.Default, handler: nil))
self.presentViewController(alert, animated: true, completion: nil)
}
I am going to use this to exit the app:
UIControl().sendAction(Selector("suspend"), to: UIApplication.sharedApplication(), forEvent: nil)
I just don't know how to connect it to the OK button above.
Don't. Apple will reject this (if they see it).
Simply inform the user and add a 'retry' button. The retry button should obviously check the connection again.
To actually answer the question, you have currently set the handler: nil on the button action, instead you can actually set a handler and use it to call whatever logic you like.
You can handle when user press OK by the following code
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.Default,
handler: { (action:UIAlertAction!) -> Void in
//after user press ok, the following code will be execute
NSLog("User pressed OK!!")
}))
I would like to display a pop-up where I'll ask the user about their preferences related to the push notifications and for that one, I want to display a list of options to the user. User can select more than one options.
I think that I'll have to display a tableview inside the UIAlertView, but it is deprecated now. So, how can I display a pop (with some small message + multiple select list ) before the APN system permissions dialog in Swift.
Any help will be appreciated.
You can use this code:
let alert = UIAlertController(title: title, message:message, preferredStyle: .Alert)
let action = UIAlertAction(title: "OK", style: .Default) { _ in
acceptNotification = true //code to execute when the user taps that OK
}
alert.addAction(action)
//you can add more actions
self.presentViewController(alert, animated: true){ // this part if provided, will be invoked after the dismissed controller's viewDidDisappear: callback is invoked.
}
In my WatchKit app, when the user first launches it, I would like to present to them a helpful message alert that tells them how the app works, e.g. what the buttons do, etc.
Is there something similar to UIAlertView / UIAlertController that I can call in a WatchKit app? I couldn't find an answer on this topic which may very well mean that it's not possible.
(New in watchOS 2.0)
WKAlertAction *act = [WKAlertAction actionWithTitle:#"OK" style:WKAlertActionStyleCancel handler:^(void){
NSLog(#"ALERT YES ");
}];
NSArray *testing = #[act];
[self presentAlertControllerWithTitle:#"Voila" message:#"This is Watch OS 2 !" preferredStyle:WKAlertControllerStyleAlert actions:testing];
SWIFT
func showPopup(){
let h0 = { print("ok")}
let action1 = WKAlertAction(title: "Approve", style: .default, handler:h0)
let action2 = WKAlertAction(title: "Decline", style: .destructive) {}
let action3 = WKAlertAction(title: "Cancel", style: .cancel) {}
presentAlert(withTitle: "Voila", message: "", preferredStyle: .actionSheet, actions: [action1,action2,action3])
}
i will add the swift4 result that work for me while using
WKAlertAction
watchOS 4.0
Swift 4
let action1 = WKAlertAction.init(title: "Cancel", style:.cancel) {
print("cancel action")
}
let action2 = WKAlertAction.init(title: "default", style:.default) {
print("default action")
}
let action3 = WKAlertAction.init(title: "destructive", style:.destructive) {
print("destructive action")
}
presentAlert(withTitle: "Alert Title", message: "message is here", preferredStyle:.actionSheet, actions: [action1,action2,action3])
Yes, after upgrading to watchOS 2, you can present an alert view using presentAlertController of WKInterfaceController.
See the official documentation here.
let h0 = { print("h0 action")}
let h1 = { print("h1 action")}
let action1 = WKAlertAction(title: "h0 action", style: .default, handler:h0)
let action2 = WKAlertAction(title: "h1 action", style: .default, handler:h0)
self.presentAlert(withTitle: "Title", message: "a message", preferredStyle: .actionSheet, actions: [action1, action2])
Code in Swift 3
There is no such class for alerts. However you can modally present "WKInterfaceController" with the information in "WKInterfaceLabel" and one "WKInterfaceButton".
Sadly, you can not do this. But you can of course have a modal page-based hierarchy with screenshots of how the app is working if it is the first time that the app is launched. I am doing so in my app! :)
If I could make one more suggestion: Create a separate group for your "alert" in your initial interface controller and show/hide it as needed.