Dears i got an error "Value of type 'GameScene' has no member 'present' "
I want to add a label to share the best-score in facebook the code below works fine in normal ViewController
for touch in touches {
let touchLocation = touch.location(in: self)
if atPoint(touchLocation).name == "shareButtoon" {
if SLComposeViewController.isAvailable(forServiceType: SLServiceTypeFacebook) {
let facebookSheet:SLComposeViewController = SLComposeViewController(forServiceType: SLServiceTypeFacebook)
facebookSheet.setInitialText(bestScore.text)
self.present(facebookSheet, animated: true, completion: nil)
} else {
let alert = UIAlertController(title: "Accounts", message: "Please login to your Facebook account", preferredStyle: UIAlertControllerStyle.alert)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.default, handler: nil))
self.present(alert, animated: true, completion: nil)
}
}
}
To be able to present such alert you might use the rootViewController, doing so:
UIApplication.shared.keyWindow?.rootViewController?.present(facebookSheet, animated: true, completion: nil)
Related
I am trying to create and display an UIalert for my app. The alert is inside of the view controller and it will be called inside the api service call as follows.
APIService().loginr(success: { result in
print(result!)
let json = result as! NSDictionary
self.showResponseAlert(title: "Success!", message: json["message"] as? String)
}, failure: {error in
print(error!)
}, parameters: parameters)
and my uiAlert
func showResponseAlert(title:String?,message:String?){
let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "OK", style: .default))
self.present(alert, animated: true, completion: nil)
}
and also i tried
DispatchQueue.main.async{
self.present(alertController, animated: true, completion: nil)
}
but didn't work for me.
Use this to present Alert.
func showResponseAlert(title:String?,message:String?){
let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "OK", style: .default))
if var topController = UIApplication.shared.keyWindow?.rootViewController {
while let presentedViewController = topController.presentedViewController {
topController = presentedViewController
}
topController.present(alert, animated: true, completion: nil)
}
}
I want after signup the alert controller should pop up and then go the loginFirstViewController but this is not going to happen why?? it only goes to loginfirstviewcontroller instead of poping up alert controller
if error == nil {
FIRAuth.auth()?.currentUser!.sendEmailVerification(completion: { (error) in
})
print("You have successfully signed up")
//Goes to the Setup page which lets the user take a photo for their profile picture and also chose a username
let alertController = UIAlertController(title: "Successful!", message: "Email Verification link sent", preferredStyle: .alert)
let alertActionOkay = UIAlertAction(title: "Okay", style: .default)
let vc = self.storyboard?.instantiateViewController(withIdentifier: "LoginFirstViewController")
self.present(vc!, animated: true, completion: nil)
alertController.addAction(alertActionOkay)
self.present(alertController, animated: true, completion: nil)
}
You directly opened new viewcontroller to prevent this you should add completion handler for uialertaction. When the user press ok button you can open other viewcontroller
let alertController = UIAlertController(title: "Successful!", message: "Email Verification link sent", preferredStyle: .alert)
let alertActionOkay = UIAlertAction(title: "Okay", style: .default) { (action) in
let vc = self.storyboard?.instantiateViewController(withIdentifier: "LoginFirstViewController")
self.present(vc!, animated: true, completion: nil)
}
alertController.addAction(alertActionOkay)
self.present(alertController, animated: true, completion: nil)
I created a button in the app to share a status on Facebook with SLComposeViewController. How do I check whether the user really do click to share the status?
My code as below:
#IBAction func fbBtn(_ sender: Any) {
if SLComposeViewController.isAvailable(forServiceType: SLServiceTypeFacebook) {
let fbShare:SLComposeViewController = SLComposeViewController(forServiceType: SLServiceTypeFacebook)
self.present(fbShare, animated: true, completion: nil)
} else {
let alert = UIAlertController(title: "Accounts", message: "Please login to a Facebook account to share.", preferredStyle: UIAlertControllerStyle.alert)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.default, handler: nil))
self.present(alert, animated: true, completion: nil)
}
}
problem solved TQ
fbShare.completionHandler = { (result:SLComposeViewControllerResult) -> Void in
switch result {
case SLComposeViewControllerResult.cancelled:
print("Cancelled")
break
case SLComposeViewControllerResult.done:
print("Done")
break
}
}
So here is the deal. Right now I have a viewcontroller where the user can signup, and it is working (checked in Firebase console). The next step is that I have another view with two fields and a Log in button. That login button now has a segue to the third view, home. But it is possible to click it even though nothing has been entered in the two textfields. The button should only work if the user enters his or he details he made in the signup view, thus logging in.
How can I do this?
already have the login code:
#IBAction func loginAction(sender: AnyObject)
{
if self.emailField.text == "" || self.passwordField.text == ""
{
let alertController = UIAlertController(title: "Oops!", message: "Please enter an email and password.", preferredStyle: .Alert)
let defaultAction = UIAlertAction(title: "OK", style: .Cancel, handler: nil)
alertController.addAction(defaultAction)
self.presentViewController(alertController, animated: true, completion: nil)
}
else
{
FIRAuth.auth()?.signInWithEmail(self.emailField.text!, password: self.passwordField.text!) { (user, error) in
if error == nil
{
self.emailField.text = ""
self.passwordField.text = ""
}
else
{
let alertController = UIAlertController(title: "Oops!", message: error?.localizedDescription, preferredStyle: .Alert)
let defaultAction = UIAlertAction(title: "OK", style: .Cancel, handler: nil)
alertController.addAction(defaultAction)
self.presentViewController(alertController, animated: true, completion: nil)
}
In the second if statement you see that it clears the fields to show the login worked.
What i need is that users can only login if the correct details are filled in, that are in the Firebase database.
Instead of checking if there isnt any errors, check that there is data is the user object like this.
FIRAuth.auth()?.signInWithEmail(self.emailField.text!, password: self.passwordField.text!) { (user, error) in
if user != nil
{
let VC = storyboard?.instantiateViewControllerWithIdentifier("Identifier") as! AccountViewController //The file that controls the view
self.presentViewController(VC, animated: true, completion: nil)
}
else
{
let alertController = UIAlertController(title: "Oops!", message: error?.localizedDescription, preferredStyle: .Alert)
let defaultAction = UIAlertAction(title: "OK", style: .Cancel, handler: nil)
alertController.addAction(defaultAction)
self.presentViewController(alertController, animated: true, completion: nil)
}
I managed to fix it by adding self. infront of
storyboard?.instantiate.
Thus creating:
self.storyboard?instantiate.
I have the following button action in a toolbar:
#IBAction func share(sender: AnyObject) {
let modifiedURL1 = "http://www.declassifiedandratified.com/search.html?q=\(self.searchBar.text)"
let modifiedURL = modifiedURL1.stringByReplacingOccurrencesOfString(" ", withString: "%20", options: NSStringCompareOptions.LiteralSearch, range: nil)
let alert = UIAlertController(title: "Share", message: "Share your findings", preferredStyle: UIAlertControllerStyle.ActionSheet)
let twBtn = UIAlertAction(title: "Twitter", style: UIAlertActionStyle.Default) { (alert) -> Void in
if SLComposeViewController.isAvailableForServiceType(SLServiceTypeTwitter){
var twitterSheet:SLComposeViewController = SLComposeViewController(forServiceType: SLServiceTypeTwitter)
twitterSheet.setInitialText("Look what I found on Declassified and Ratified: \(modifiedURL)")
self.presentViewController(twitterSheet, animated: true, completion: nil)
} else {
var alert = UIAlertController(title: "Accounts", message: "Please login to a Twitter account to share.", preferredStyle: UIAlertControllerStyle.Alert)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.Default, handler: nil))
self.presentViewController(alert, animated: true, completion: nil)
}
}
let fbBtn = UIAlertAction(title: "Facebook", style: UIAlertActionStyle.Default) { (alert) -> Void in
if SLComposeViewController.isAvailableForServiceType(SLServiceTypeFacebook){
var facebookSheet:SLComposeViewController = SLComposeViewController(forServiceType: SLServiceTypeFacebook)
facebookSheet.setInitialText("Look what I found on Declassified and Ratified: \(modifiedURL)")
self.presentViewController(facebookSheet, animated: true, completion: nil)
} else {
var alert = UIAlertController(title: "Accounts", message: "Please login to a Facebook account to share.", preferredStyle: UIAlertControllerStyle.Alert)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.Default, handler: nil))
self.presentViewController(alert, animated: true, completion: nil)
}
}
let safariBtn = UIAlertAction(title: "Open in Safari", style: UIAlertActionStyle.Default) { (alert) -> Void in
let URL = NSURL(string: modifiedURL)
UIApplication.sharedApplication().openURL(URL!)
}
let cancelButton = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel) { (alert) -> Void in
println("Cancel Pressed")
}
let textBtn = UIAlertAction(title: "Message", style: UIAlertActionStyle.Default) { (alert) -> Void in
if (MFMessageComposeViewController.canSendText()) {
let controller = MFMessageComposeViewController()
controller.body = "Look what I found on Declassified and Ratified: \(modifiedURL)"
controller.messageComposeDelegate = self
self.presentViewController(controller, animated: true, completion: nil)
}
}
alert.addAction(twBtn)
alert.addAction(fbBtn)
alert.addAction(safariBtn)
alert.addAction(textBtn)
alert.addAction(cancelButton)
self.presentViewController(alert, animated: true, completion: nil)
}
However, this code crashes when called on an iPad with a sigbart crash (that is all I can see in the console). I see this is a common problem but the other solutions have not worked for me. I even set the version to the latest iOS and that didn't fix it. Can someone explain?
On an iPad, an action sheet is a popover. Therefore you must give its UIPopoverPresentationController a sourceView and sourceRect, or barButtonItem, so that it has something to attach its arrow to.