UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(100, 200, 200, 40)]; UIColor *color = [UIColor redColor];
textField.backgroundColor = [UIColor yellowColor];
textField.attributedPlaceholder = [[NSAttributedString alloc] initWithString:@"密码" attributes:@{NSForegroundColorAttributeName: color}];
[self.view addSubview:textField];
来自 http://code4app.com/snippets/one/UITextField设置placeholder颜色/537c765e933bf0a0468b525c#s0
