设置textfield的placeholder的字体和颜色

设置textfield的placeholder的字体和颜色

UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(10, 30, 300, 150)];

    textField.placeholder = @"this is a textField";

    [textField setValue:[UIColor redColor] forKeyPath:@"_placeholderLabel.textColor"];

    [textField setValue:[UIFont boldSystemFontOfSize:30] forKeyPath:@"_placeholderLabel.font"];

    textField.borderStyle = UITextBorderStyleRoundedRect;

    [self.view addSubview:textField];