使用属性

@property(nonatomic,copy)  NSAttributedString    *attributedPlaceholder;

// 文字属性

NSMutableDictionary *attrs = [NSMutableDictionary dictionary];

attrs[NSForegroundColorAttributeName] = [UIColor grayColor];

// NSAttributedString : 带有属性的文字(富文本技术)

NSAttributedString *placeholder = [[NSAttributedString alloc] initWithString:@"手机号" attributes:attrs];

self.phoneField.attributedPlaceholder = placeholder;

NSMutableAttributedString *placehoder = [[NSMutableAttributedString alloc] initWithString:@"手机号"];

[placehoder setAttributes:@{NSForegroundColorAttributeName : [UIColor whiteColor]} range:NSMakeRange(0, 1)];

[placehoder setAttributes:@{

NSForegroundColorAttributeName : [UIColor yellowColor],

NSFontAttributeName : [UIFont systemFontOfSize:30]

} range:NSMakeRange(1, 1)];

[placehoder setAttributes:@{NSForegroundColorAttributeName : [UIColor redColor]} range:NSMakeRange(2, 1)];

self.phoneField.attributedPlaceholder = placehoder;

重写方法

- (void)drawPlaceholderInRect:(CGRect)rect

{

[self.placeholder drawInRect:CGRectMake(0, 10, rect.size.width, 25) withAttributes:@{

NSForegroundColorAttributeName : [UIColor grayColor],

NSFontAttributeName : self.font}];

}

 使用KVC

[self setValue:[UIColor grayColor] forKeyPath:@"_placeholderLabel.textColor"];