使用屬性
@property(nonatomic,copy)? NSAttributedString? ? *attributedPlaceholder;
// 文字屬性
NSMutableDictionary *attrs = [NSMutableDictionary dictionary];
attrs[NSForegroundColorAttributeName] = [UIColor grayColor];
// NSAttributedString : 帶有屬性的文字(富文本技術)
NSAttributedString *placeholder = [[NSAttributedString alloc] initWithString:@"手機號" attributes:attrs];
self.phoneField.attributedPlaceholder = placeholder;
NSMutableAttributedString *placehoder = [[NSMutableAttributedString alloc] initWithString:@"手機號"];
[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;
重寫方法
- (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"];
