你可以改变占位符文本颜色的任何颜色，你想通过使用下面的代码。

UIColor *color = [UIColor lightTextColor];
YOURTEXTFIELD.attributedPlaceholder = [[NSAttributedString alloc] initWithString:@"PlaceHolder Text" attributes:@{NSForegroundColorAttributeName: color}];

对于设置属性文本字段占位符与多种颜色，

只要指定文本，

  //txtServiceText is your Textfield
 _txtServiceText.placeholder=@"Badal/ Shah";
    NSMutableAttributedString *mutable = [[NSMutableAttributedString alloc] initWithString:_txtServiceText.placeholder];
     [mutable addAttribute: NSForegroundColorAttributeName value:[UIColor whiteColor] range:[_txtServiceText.placeholder rangeOfString:@"Badal/"]]; //Replace it with your first color Text
    [mutable addAttribute: NSForegroundColorAttributeName value:[UIColor orangeColor] range:[_txtServiceText.placeholder rangeOfString:@"Shah"]]; // Replace it with your secondcolor string.
    _txtServiceText.attributedPlaceholder=mutable;

输出:

你可以重写drawPlaceholderInRect:(CGRect)rect来手动渲染占位符文本:

- (void) drawPlaceholderInRect:(CGRect)rect {
    [[UIColor blueColor] setFill];
    [[self placeholder] drawInRect:rect withFont:[UIFont systemFontOfSize:16]];
}

[txt_field setValue:ColorFromHEX(@"#525252") forKeyPath:@"_placeholderLabel.textColor"];

我建议另一种解决办法。由于占位符文本使用文本字段的默认字体设置，只需将初始字体颜色设置为您想要的占位符字体颜色。然后设置你的UITextField的委托并实现以下方法:

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
    //set color for text input
    textField.textColor = [UIColor blackColor];
    return YES;
}

- (BOOL)textFieldShouldClear:(UITextField *)textField
{
    //set color for placeholder text
    textField.textColor = [UIColor redColor];
    return YES;
}

因此，如果用户开始在文本框中输入文本的颜色改变为黑色，在文本框再次被清除后，占位符文本将再次出现红色。

干杯, 安卡

重写drawPlaceholderInRect:将是正确的方式，但由于API(或文档)中的错误，它不起作用。

该方法永远不会在UITextField上被调用。

参见drawTextInRect on UITextField not called

你可以使用digdog的解决方案。因为我不确定这是否通过了苹果的审查，我选择了一个不同的解决方案:用我自己的标签覆盖文本字段，模仿占位符行为。

这有点乱。 代码看起来像这样(注意，我在TextField的子类中这样做):

@implementation PlaceholderChangingTextField

- (void) changePlaceholderColor:(UIColor*)color
{    
    // Need to place the overlay placeholder exactly above the original placeholder
    UILabel *overlayPlaceholderLabel = [[[UILabel alloc] initWithFrame:CGRectMake(self.frame.origin.x + 8, self.frame.origin.y + 4, self.frame.size.width - 16, self.frame.size.height - 8)] autorelease];
    overlayPlaceholderLabel.backgroundColor = [UIColor whiteColor];
    overlayPlaceholderLabel.opaque = YES;
    overlayPlaceholderLabel.text = self.placeholder;
    overlayPlaceholderLabel.textColor = color;
    overlayPlaceholderLabel.font = self.font;
    // Need to add it to the superview, as otherwise we cannot overlay the buildin text label.
    [self.superview addSubview:overlayPlaceholderLabel];
    self.placeholder = nil;
}