How to add UITextfield on click of UIButton and make it editable

问题

I have a UIButton and I am trying to develop an editable UITextField onclick of UIButton. Basically, I want the user to click on the button and edit the text and save it for future use.

So currently I have:

[notes_button addTarget:self action:@selector(editNote) forControlEvents:UIControlEventTouchUpInside];

I am not sure how to get a popup like UITextField onclick and add UITextField in editNote function.

回答1:

Try this. First make your textfield hide on viewdidload - then on button push, fade it in.. make it editable, and pop up keyboard for user.

//viewDidLoad

yourTextField.alpha = 0;
yourTextField.userInteractionEnabled = FALSE;

-(void)editNote {

            //fade in text field after button push
            [UIView beginAnimations:nil context:NULL];
            [UIView setAnimationDelay:0];
            [UIView setAnimationDuration:0.75];
            yourTextField.alpha = 1;

            [UIView commitAnimations];

           //make text field editable
           yourTextField.userInteractionEnabled = TRUE;

          //pop up keyboard
           [yourTextField becomeFirstResponder];

}

------- Update --------

Now that you have described what you are trying to do a little better. You will want to create an entirely new ViewController with the fields (UITextFields etc) on this new view controller.

On button click you will code:

TextFieldViewController * vc = [(TextFieldViewController *)[[TextFieldViewController alloc] init] autorelease];
[self.navigationController presentModalViewController:vc animated:YES];
[vc release];

//you will need to create a button on this new ViewController and use this code to dismiss it when done.

[[self parentViewController] dismissModalViewControllerAnimated:YES];

来源：https://stackoverflow.com/questions/7066875/how-to-add-uitextfield-on-click-of-uibutton-and-make-it-editable

标签

iphone

objective-c

uibutton

uitextfield