alertView with textfield moves up twice(too much) when textfield become first responder and the keyboard shows

[GeorgeSwift]

Describe the bug
alertView with textfield moves up twice (too much) when textfield become first responder and keyboard shows and doesnt move back when keyboard disappears

To Reproduce
Steps to reproduce the behavior:

1. add alert
   SCLAlertView *alert = [[SCLAlertView alloc] init];

    UITextField *textField = [alert addTextField:@""];
   
    [alert addButton:@"Confirm" actionBlock:^(void) {
        NSLog(@"Text value: %@", textField.text);
   
    }];
    //Overwrite SCLAlertView (Buttons, top circle and borders) colors
    alert.customViewColor = COLOR_LIGHTBLUEBACKGROUND;
   
    //Show animation type (Default is SCLAlertViewShowAnimationSlideInFromTop)
    alert.showAnimationType =  SCLAlertViewShowAnimationSlideInFromTop;
   
    [alert showEdit:weakSelf title:@"edit" subTitle:@"subtitle" closeButtonTitle:@"Cancel" duration:0.0f];
   

2. Click on 'textfield' from second time

3. Click on 'Confirm'

4. See error

Expected behavior
alert moves up for a right distance once

Screenshots
If applicable, add screenshots to help explain your problem.

Smartphone (please complete the following information):

• Device: [e.g. iPhone6s]
• OS: [e.g. iOS13.4.1]
• Version [e.g. 1.1.6]

Additional context
works well on first load , after first time , moves up twice

[GeorgeSwift]

using IQKeyboardManager in the project

[GeorgeSwift]

turning IQKeyboardManager off solves the "issue" .Thank you, this alertView is awesome!