becomeFirstResponder not working in iOS 8

Question

I am using UITextField's method becomeFirstResponder to show the keyboard. This is working in iOS 7. But in iOS 8 this method doesn't show the keyboard.

 UITextField *txtAddNew = [[UITextField alloc] initWithFrame:CGRectMake(10,10,240, 21)];
 txtAddNew.font = [UIFont fontWithName:@"Helvetica" size:16];
 txtAddNew.clearButtonMode = UITextFieldViewModeWhileEditing;
 txtAddNew.returnKeyType = UIReturnKeyDone;
 txtAddNew.delegate = self;
 txtAddNew.autocorrectionType = UITextAutocorrectionTypeNo;
 txtAddNew.tag = 15;

 // Open keyboard
 [txtAddNew becomeFirstResponder];

Is there any way to do it in iOS 8?

I don't see you adding that textfield to any view as a subview. — Kris Gellci, Nov 24 '14 at 05:12

score 49 · Accepted Answer · answered Nov 24 '14 at 05:12

Try calling becomeFirstResponder like below

[txtAddNew performSelector:@selector(becomeFirstResponder) withObject:nil afterDelay:0];

As per Apple,

A responder object only becomes the first responder if the current responder can resign first-responder status (canResignFirstResponder) and the new responder can become first responder.

You may call this method to make a responder object such as a view the first responder. However, you should only call it on that view if it is part of a view hierarchy. If the view’s window property holds a UIWindow object, it has been installed in a view hierarchy; if it returns nil, the view is detached from any hierarchy.

Is weird how this works when [txtAddNew becomeFirstResponder] didn't work in cases. What is the difference? — mskw, Jan 12 '17 at 20:56
@mskw Probably because calling the selector forces `resignFirstResponder`. — Pedro Paulo Amorim, Apr 10 '20 at 17:02

score 18 · Answer 2 · answered Dec 19 '16 at 09:29

18

Swift 3

Here is the swift 3 version of the accepted answer. For me to get it to work I also had to add a delay.

txtAddNew.perform(
    #selector(becomeFirstResponder), 
    with: nil, 
    afterDelay: 0.1
)

answered Dec 19 '16 at 09:29

Jacob Arvidsson

618
7
13

score 3 · Answer 3 · answered Nov 24 '14 at 05:16

3

I think you missed the addsubview the txtAddNew to the Mainview

   txtAddNew.tag = 15;
   [self.view addsubview:txtAddNew];  

   // Open keyboard
  [txtAddNew becomeFirstResponder];

answered Nov 24 '14 at 05:16

Anbu.Karthik

82,064
23
174
143

score 1 · Answer 4 · answered Nov 24 '14 at 05:12

1

add this line in your code . i hope it will work

[txtAddNew performSelectorOnMainThread:@selector(becomeFirstResponder) withObject:nil afterDelay:0.0];

answered Nov 24 '14 at 05:12

Sport

8,570
6
46
65

Derek Hierholzer · Answer 5 · 2018-02-13T19:02:46.900

Swift 4 and iOS 11

In my case, no mater what I tried, I was not able to set first responder until I tried this.

func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
    if cell.isKind(of: YOURTABLEVIEWCELL.self) {
        if let yourCell = cell as? YOURTABLEVIEWCELL{
            yourCell.yourUiTextField.becomeFirstResponder()
        }
    }
}

Hope this helps someone stuck with the same problem.

score 0 · Answer 6 · answered Apr 13 '15 at 08:30

0

Sometimes it helps to first resign the first responder:

var tapGesture = UITapGestureRecognizer()
tapGesture.rac_gestureSignal().subscribeNext { [weak self] (_) -> Void in
    self?.inputTextField.resignFirstResponder()
    self?.inputTextField.becomeFirstResponder()
}

self.charViewsContainer.addGestureRecognizer(tapGesture)

answered Apr 13 '15 at 08:30

Antoine

23,526
11
88
94

this worked for me, is there any Apple documentation that led you to this? – Austin Sep 18 '17 at 23:11

Zoltan Varadi · Answer 7 · 2016-04-08T08:33:12.757

For iOS 9.3, the following worked for me:

 private var searchTextFieldShouldReturn = false

    override func viewWillAppear(animated: Bool) {
            super.viewWillAppear(animated)

            self.searchTextFieldShouldReturn = false
            self.searchTextField.becomeFirstResponder()
        }
    override func viewWillDisappear(animated: Bool) {
        super.viewWillDisappear(animated)

        self.searchTextFieldShouldReturn = true
        self.searchTextField.resignFirstResponder()
    }

    func textFieldShouldReturn(textField: UITextField) -> Bool {
            self.searchTextFieldShouldReturn = true
            textField.resignFirstResponder()

            return true
        }

    func textFieldShouldEndEditing(textField: UITextField) -> Bool {

            return self.searchTextFieldShouldReturn
        }

So You need to make sure You also implement the textFieldShouldEndEditing delegate.

score 0 · Answer 8 · answered May 27 '16 at 16:07

0

Just in case others have the same issue as me:

I had an IBOutlet connected to my UITextField. Erroneously I was initializing this in my viewDidLoad method. That is, [[textField alloc] init];. I removed this and everything worked again.

answered May 27 '16 at 16:07

apolo

441
4
18

becomeFirstResponder not working in iOS 8

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