没有textview的iphone键盘 [英] iphone keyboard without textview

问题描述

是否可以在没有textview的iPhone应用程序中调出键盘？或者我必须有一个看不见的textview？

is it possible to bring up the keyboard in an iphone app without a textview? or will i have to have an invisible textview?

如果是这样，你如何以编程方式创建一个textview然后调出键盘（用户不必点击textview ）？我可以找到的唯一示例使用界面构建器..

if so, how do you programatically create a textview and then bring up the keyboard (without the user having to tap the textview)? the only examples i can find use interface builder..

推荐答案

显示键盘的唯一（有效）方法是作为第一响应者的textfield。
您可以隐藏它并通过在隐藏文本字段上调用 becomeFirstResponder 以编程方式使其成为第一响应者。

The only (valid) way to show the keyboard is to have a textfield that is first responder. You can hide it and make it first responder programmatically by calling becomeFirstResponder on the hidden textfield.

你可以通过这样的方式以编程方式创建UITextView（假设aRect和视图存在）

You can create a UITextView programmatically by doing something like this (assume aRect and view exist)

var textView = [[[UITextView alloc] initWithFrame:aRect] autorelease];
[view addSubview:textView];

[textView becomeFirstResponder];

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