Placeholder in UITextView

最新推荐文章于 2025-09-10 17:59:49 发布

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最新推荐文章于 2025-09-10 17:59:49 发布

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原文链接：https://my.oschina.net/junfrost/blog/153102

本文将介绍如何在iOS应用中使用UITextView的占位符文本功能，包括如何在输入开始和结束时显示和隐藏占位符文本，以及如何设置文本颜色。

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And the stack overflow url is :http://stackoverflow.com/questions/1328638/placeholder-in-uitextview Easy way, just create placeholder text in UITextView by using the following UITextViewDelegate methods:

(void)textViewDidBeginEditing:(UITextView *)textView { if ([textView.text isEqualToString:@"placeholder text here..."]) { textView.text = @""; textView.textColor = [UIColor blackColor]; //optional } [textView becomeFirstResponder]; }
(void)textViewDidEndEditing:(UITextView *)textView { if ([textView.text isEqualToString:@""]) { textView.text = @"placeholder text here..."; textView.textColor = [UIColor lightTextColor]; //optional } [textView resignFirstResponder]; } just remember to set myUITextView with the exact text on creation e.g.

UITextView *myUITextView = [[UITextView alloc] init]; myUITextView.delegate = self; myUITextView.text = @"placeholder text here..."; myUITextView.textColor = [UIColor lightTextColor]; //optional and make the parent class a UITextView delegate before including these methods e.g.

@interface MyClass () <UITextViewDelegate> @end

转载于:https://my.oschina.net/junfrost/blog/153102