将PlaceHolder放置在TextField中 [英] Placing PlaceHolder In TextField

问题描述

我想在textfield占位符文本中添加强制字段标记，如下图所示，请告诉我，我完全感到困惑如何做到这一点

I want to add mandatory field mark in textfield placeholder text like below image please suggest me i am totally confused how to do it

推荐答案

你可以使用：

NSMutableAttributedString *attriButedString = [[NSMutableAttributedString alloc]initWithString:@"Mandatory*"];
[attriButedString addAttribute:NSForegroundColorAttributeName 
                         value:[NSColor lightGrayColor] 
                         range:NSMakeRange(0, 9)];
[attriButedString addAttribute:NSForegroundColorAttributeName 
                         value:[NSColor redColor] 
                         range:NSMakeRange(9, 1)];
[[self.textField cell] setPlaceholderAttributedString:attriButedString];

这将如下所示：

注意：您可以根据您的stringlength计算硬编码范围。

Note: Instead of hard-coded range you can calculate according to your stringlength.

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