问题描述
我在iPad上创建一个应用程序。我使用 UITextField
的 inputView
属性创建一个自定义键盘。要在光标位置插入文本,我使用复制&粘贴方法(),工作正常。现在,我想创建删除键。我使用的代码是:
I'm creating an application on the iPad. I create a custom keyboard using UITextField
's inputView
property. To insert text at the cursor position, I use the copy & paste method (http://dev.ragfield.com/2009/09/insert-text-at-current-cursor-location.html), which works fine. Now, I want to create the delete key. The code that I'm using is:
if (textField.text.length > 0) {
textField.text = [textField.text substringToIndex:textField.text.length-1];
}
但是,你可能知道,它只删除最后一个字符光标为。有人知道更好的解决方案吗?
However, as you may know, it only deletes the last character no matter where the cursor is. Does anyone know a better solution?
非常感谢!
推荐答案
p>只需调用[textField deleteBackward]。它负责处理光标位置和高亮显示。
Just call [textField deleteBackward]. It takes care of cursor position and highlight for you.
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