vickate_iOS_UITextField 的占位符自定义设置

富文本方法

@property (weak, nonatomic) IBOutlet UITextField *textField;

 NSDictionary *dic = @{NSForegroundColorAttributeName:[UIColor whiteColor], NSFontAttributeName:[UIFont systemFontOfSize:15]};

 self.textField.attributedPlaceholder = [[NSAttributedString alloc] initWithString:@"Hello_Wrold!" attributes:dic];

 self.textField.tintColor = [UIColor cyanColor];

KVC方法

self.textField.placeholder = @"Hello_Wrold!";

 [self.textField setValue:[UIColor magentaColor] forKeyPath:@"_placeholderLabel.textColor"]

 [self.textField setValue:[UIFont systemFontOfSize:15] forKeyPath:@"_placeholderLabel.font"];

 self.textField.tintColor = [UIColor greenColor];