一，效果图。

【代码笔记】iOS-UITextField设置placeholder颜色_ico

二，工程图。

【代码笔记】iOS-UITextField设置placeholder颜色_工程图_02

三，代码。

RootViewController.h

#import <UIKit/UIKit.h>

@interface RootViewController : UIViewController
<UITextFieldDelegate>

@end

 

RootViewController.m

【代码笔记】iOS-UITextField设置placeholder颜色_工程图_03
#import "RootViewController.h"

@interface RootViewController ()

@end

@implementation RootViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    
    
    UITextField *textField=[[UITextField alloc]initWithFrame:CGRectMake(50, 100, 200, 50)];
    
    //UITextField设置placeholder颜色
    UIColor *color = [UIColor redColor];
    textField.attributedPlaceholder = [[NSAttributedString alloc] initWithString:@"密码" attributes:@{NSForegroundColorAttributeName: color}];
    
    textField.delegate=self;
    [self.view addSubview:textField];
    
}
【代码笔记】iOS-UITextField设置placeholder颜色_工程图_03