iOS实现账号、密码记住功能

 RegisViewController.m

 //注册页面
#import "RegisViewController.h"
#import "LoginViewController.h"

@interface RegisViewController ()
{
  UITextField *accountField;
  UITextField *passField;
}

@end

@implementation RegisViewController

- (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.
  
  self.title=@"注册";
  
  [self initView];
  
}
-(void)initView
{
  accountField=[[UITextField alloc]initWithFrame:CGRectMake(50, 100, 200, 40)];
  [accountField setBackgroundColor:[UIColor redColor]];
  [accountField setPlaceholder:@"请输入账号"];
  [accountField setKeyboardType:UIKeyboardTypeNumberPad];
  [accountField setClearsContextBeforeDrawing:YES];
  [self.view addSubview:accountField];
  
  
  passField=[[UITextField alloc]initWithFrame:CGRectMake(50, 160, 200, 40)];
  [passField setBackgroundColor:[UIColor redColor]];
  [passField setPlaceholder:@"请输入密码"];
  [passField setKeyboardType:UIKeyboardTypeNumberPad];
  [passField setClearsContextBeforeDrawing:YES];
  [self.view addSubview:passField];
  
  
  UIButton *registeBut=[UIButton buttonWithType:UIButtonTypeRoundedRect];
  registeBut.backgroundColor=[UIColor greenColor];
  registeBut.frame=CGRectMake(70, 220, 100, 40);
  [registeBut setTitle:@"注册" forState:UIControlStateNormal];
  [registeBut addTarget:self action:@selector(resis) forControlEvents:UIControlEventTouchUpInside];
  [self.view addSubview:registeBut];

}

//注册的时候，将账号，密码保存到本地。
-(void)resis
{

  NSUserDefaults *defaut=[NSUserDefaults standardUserDefaults];
  [defaut setObject:accountField.text forKey:@"account"];
  [defaut setObject:passField.text forKey:@"password"];
  [defaut synchronize];
  
  LoginViewController *login=[[LoginViewController alloc]init];
  [self.navigationController pushViewController:login animated:YES];
    
  
}
- (void)didReceiveMemoryWarning
{
  [super didReceiveMemoryWarning];
  // Dispose of any resources that can be recreated.
}

								 
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