self.title=@"修改UITextField的placeholder字体颜色";字体
UITextField *textTF=[[UITextField alloc]initWithFrame:CGRectMake(20,130,300,30)];it
textTF.placeholder=@"修改UITextField的placeholder字体颜色";view
// // 一种方式vi
// [textTF setValue:[UIColor redColor] forKeyPath:@"_placeholderLabel.textColor"];颜色
// 第二种方式placeholder
textTF.attributedPlaceholder=[[NSAttributedString alloc]initWithString:@"修改UITextField的placeholder字体颜色" attributes:@{NSForegroundColorAttributeName:[UIColor redColor]}];ab
[self.view addSubview:textTF];