如何以编程方式选择UITextField进行编辑

本文介绍了如何以编程方式选择UITextField进行编辑的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我有一个UITextField，我需要以编程方式选择，所以当用户点击UIDatePicker中的日期时，它将被发送到该UITextField。

I have a UITextField that I need to select programmatically so when the user taps on a date in a UIDatePicker, it will be sent to that UITextField.

这是我有的代码，没有选择UITextField;我已经尝试了所有可能的 UIControlEvent 组合，但它们都不起作用。还有其他想法吗？

This is the code I have, which does not select the UITextField; I have tried all possible combinations of UIControlEvent, but none of them work. Any other ideas?

// set textField parameters if([whichTextField isEqualToString:@"oStartTime"]) { oStartTime.backgroundColor = [UIColor colorWithRed:252.0/255.0 green:255.0/255.0 blue:197.0/255.0 alpha:1.0]; [oStartTime sendActionsForControlEvents: UIControlEventTouchUpInside]; } else if([whichTextField isEqualToString:@"oFinishTime"]) { oFinishTime.backgroundColor = [UIColor colorWithRed:252.0/255.0 green:255.0/255.0 blue:197.0/255.0 alpha:1.0]; [oFinishTime sendActionsForControlEvents: UIControlEventTouchUpInside]; }

推荐答案

查看UIResponder实例方法成为第一个响应者。

See the UIResponder instance method becomeFirstResponder.