如何在单击 UIButton 时添加 UITextfield 并使其可编辑

问题描述

我有一个 UIButton，我正在尝试开发一个 UIButton 的可编辑 UITextField onclick.基本上，我希望用户单击按钮并编辑文本并将其保存以供将来使用.

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.

所以目前我有:

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

我不知道如何获得像 UITextField onclick 这样的弹出窗口并在 editNote 函数中添加 UITextField.

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

推荐答案

试试这个.首先让您的文本字段隐藏在 viewdidload - 然后在按钮按下时，将其淡入......使其可编辑，并为用户弹出键盘.

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];

}

-------更新--------

现在您已经描述了您想要做得更好的事情.您将希望在这个新的视图控制器上创建一个带有字段(UITextFields 等)的全新 ViewController.

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.

点击按钮后，您将编码:

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];

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