UiTextField changes font while editing in Swift 1.2 & 2.0 - ios

Question

I have a UITextField with a custom font, everything worked fine until Swift update to 1.2 and 2.0. Afterwards, each time I try to edit a text field, it changes its font to a different one that seems a sort of Times New Roman. Does anyone have experience of that?

Answer 1

I came across this same issue and figured out a solution. The problem boils down to setSecureTextEntry changing the font when it is set, and not changing it back when it is unset. In fact, you can never change the font back as long as your UITextField has first responder.
The trick is to resignFirstResponder before you call setSecureTextEntry: and then becomeFirstResponder again. This will work (as of iOS 9.2), but it triggers the keyboard show/hide animation and will cause the screen to "shake". To get around that, you'll need to kill the keyboard animation as well.
Here's my full solution:
- (void)setSecureTextEntry:(BOOL)secureTextEntry {
__weak typeof(self) weakSelf = self;
[UIView performWithoutAnimation:^{
BOOL resumeResponder = NO;
if([[weakSelf textEntryField] isFirstResponder]) {
resumeResponder = YES;
[[weakSelf textEntryField] resignFirstResponder];
}
[[weakSelf textEntryField] setSecureTextEntry:secureTextEntry];
if(resumeResponder) {
[[weakSelf textEntryField] becomeFirstResponder];
}
}];
}
PS: This isn't a Swift bug. It's a UIKit bug. I had the same issue with Objective-C.

Answer 2

I had a weird case of fonts changing its size and font type, when secureTextEntry for an UiTextField was toggled by using a button action.
Had to explicitly manage font for the UiTextField by using these lines of code:
password.font = UIFont(name: "systemFont", size: 14)
password.font = UIFont.systemFontOfSize(14)
Complete Code used in the Show Password Button:
//Function associated with the button for show password option
#IBAction func switchShowPasswordAction(sender: AnyObject) {
if showPassword{
showPassword = false
password.secureTextEntry = !showPassword
}else{
showPassword = true
password.secureTextEntry = !showPassword
}
//Changing font fix
password.font = UIFont(name: "systemFont", size: 14)
password.font = UIFont.systemFontOfSize(14)
}
Post applying this change:

Answer 3

Since I used custom fonts we need to preserve the original font. Create an extension to UITextField:
extension UITextField {
func enablePasswordModeWithShowHide() {
secureTextEntry = false
let showButton = UIButton(type: UIButtonType.System)
showButton.setTitle("HIDE", forState: .Normal)
showButton.titleLabel?.textAlignment = .Right
showButton.sizeToFit()
rightView = showButton
rightViewMode = .Always
showButton.addTarget(self, action: "handleShowHideTapped", forControlEvents: .TouchUpInside)
showButton.tintColor = UIColor.blackColor()
}
func handleShowHideTapped() {
secureTextEntry = !secureTextEntry
let font = self.font
self.font = nil
self.font = font
if let oldText = text {
text = "";
text = oldText;
}
if let button = rightView as? UIButton {
button.setTitle(secureTextEntry ? "SHOW" : "HIDE", forState: .Normal)
button.sizeToFit()
}
}
}
Where it could be implemented like this:
passwordTextField.enablePasswordModeWithShowHide()

Answer 4

All of these answers pretty much work, but I had to use a different solution to achieve the results I needed, considering I'm using a custom font.
You need to make the text field attributed in the storyboard inspector pane for the UITextField, as follows:
Then, in code, you need to manage the toggling of the visibility, setting the attributed text each time, to ensure its properly formatted. I also resignFirstResponder() on the field just to take care of some positioning glitch that I still haven't figured out yet.
func toggleShowPass() {
self.showing = !showing
txtpassword.secureTextEntry = !showing
textFieldPassword.resignFirstResponder()
let string = textFieldPassword.text!
let attrString = NSMutableAttributedString(string: string)
textFieldPassword.addAttribute(NSFontAttributeName, value: UIFont(name: "AvenirNext-Regular", size: 16.0)!, range: NSMakeRange(0, string.characters.count))
textFieldPassword.attributedText = attrString
}

Answer 5

Set defaultTextAttributes with custom font attribute after toggling the secureTextEntry flag
NSDictionary *attrsDictionary =
#{ NSFontAttributeName://customfont};
_passwordtextfield.defaultTextAttributes = attrsDictionary;

Answer 6

I had to apply the following solution with latest Xcode 7.1.1 which actually worked in my case I suspect this issue is of framework.
- (IBAction)btnPasswordShowAction:(id)sender {
self.txtPassword.secureTextEntry = !self.txtPassword.secureTextEntry;
NSString *tmpString = self.txtPassword.text;
self.txtPassword.text = #" ";
self.txtPassword.text = tmpString;
[self.txtPassword setFont:nil];
self.txtPassword.font = [UIFont fontWithName:#"OpenSans-Regular" size:16.0];
}
#pragma mark - Textfield Delegate Methods
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
[self.txtPassword setFont:nil];
self.txtPassword.font = [UIFont fontWithName:#"OpenSans-Regular" size:16.0];
}
- (BOOL)textFieldShouldEndEditing:(UITextField *)textField
{
[self.txtPassword setFont:nil];
self.txtPassword.font = [UIFont fontWithName:#"OpenSans-Regular" size:16.0];
return YES;
}