如何在UITextField中添加自定义清除按钮？

I want to resize the default clear button of UITextField. After I googled a lot, I came to know there is no way to modify it.

我想调整UITextField的默认清除按钮的大小。经过google搜索后,我才知道无法修改它。

So I decided to go with Custom option ie, by adding UIButton to text field.I found some code from S.O, but nothing works for me. These are the links which I referred.

所以我决定使用自定义选项,即将UIButton添加到文本字段。我从S.O找到了一些代码,但没有任何对我有用。这些是我提到的链接。

Custom UITextField clear button

自定义UITextField清除按钮

Custom clear button for UITextField

UITextField的自定义清除按钮

Custom clear button in UISearchBar text field

UISearchBar文本字段中的自定义清除按钮

So please suggest some solution which behaves exactly as default clear button of UITextField

所以请建议一些解决方案,其行为与UITextField的默认清除按钮完全相同

Any help will be appreciated.

任何帮助将不胜感激。

Thanks in advance.

提前致谢。

2 个解决方案

#1

In addition to the jake9115 response, you can emulate the clearbutton behavior by using the UITextFieldDelegate callbacks.

除了jake9115响应之外,您还可以使用UITextFieldDelegate回调来模拟clearbutton行为。

You can try in this way:
Show the button when -textFieldDidBeginEditing: is called
Hide the button when -textFieldDidEndEditing: is called
Hide the button if in -(BOOL)textFieldShouldClear:(UITextField*)textField the length of the textField's text is 0.

你可以这样尝试:当-textFieldDidBeginEditing:被调用时显示按钮当-textFieldDidEndEditing:被调用时隐藏按钮隐藏按钮if - (BOOL)textFieldShouldClear:(UITextField *)textField textField文本的长度为0。

#2

Why not just make a button that sets the TextView's value to ""?

为什么不只是创建一个将TextView的值设置为“”的按钮?

- (IBAction)button:(id)sender {
_myTextView.text = "";
}

#1