强制键盘通过按钮显示（iOS）
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Force keyboard to show up via button (iOS)
提问by Mc.Lover
I have an UITextView and I don't want check editable option, how can call keyboard via a button? This code doesn't work for me!
我有一个 UITextView 并且我不想检查可编辑选项，如何通过按钮调用键盘？这段代码对我不起作用！
-(IBAction) yourButtonClick
{
[myTextView becomeFirstResponder];
[self.view addSubview:myTextView];
}
回答by Arrix
From the iPhone Application Programming Guide
来自 iPhone 应用程序编程指南
However, you can programmatically display the keyboard for an editable text view by calling that view's becomeFirstResponder method. Calling this method makes the target view the first responder and begins the editing process just as if the user had tapped on the view.
但是，您可以通过调用该视图的 becomeFirstResponder 方法以编程方式显示可编辑文本视图的键盘。调用此方法使目标视图成为第一响应者并开始编辑过程，就像用户点击视图一样。
So to show the keyboard programmatically,
所以要以编程方式显示键盘，
[textView becomeFirstResponder];
However, the keyboard will never show if the textView is not editable.
但是，如果 textView 不可编辑，键盘将永远不会显示。
The purpose of showing the keyboard is to allow editing. I assume you just don't want the keyboard to appear when the user taps the text view. In this case, you can enable editable programmatically when the button is tapped.
显示键盘的目的是允许编辑。我假设您只是不希望在用户点击文本视图时出现键盘。在这种情况下，您可以在点击按钮时以编程方式启用可编辑。
-(IBAction) yourButtonClick
{
myText.editable = YES;
[myText becomeFirstResponder];
}
Then in the UITextViewDelegate, disable editable when the user finishes editing.
然后在 UITextViewDelegate 中，当用户完成编辑时禁用可编辑。
- (void)textViewDidEndEditing:(UITextView *)textView {
textView.editable = NO;
}
