iOS账号密码记住功能 iOS实现账号、密码记住功能
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一、效果图
二、工程图
三、代码
RegisViewController.h
#import <UIKit/UIKit.h> @interface RegisViewController : UIViewController @end
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. }
LoginViewController.h
#import <UIKit/UIKit.h> @interface LoginViewController : UIViewController @end
LoginViewController.m
//登陆页面 #import "LoginViewController.h" @class RegisViewController; @interface LoginViewController () { UITextField *accountField; UITextField *passField; } @end @implementation LoginViewController - (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=@"登陆"; [self initView]; } -(void)initView { accountField=[[UITextField alloc]initWithFrame:CGRectMake(50, 100, 200, 40)]; [accountField setBackgroundColor:[UIColor redColor]]; [accountField setKeyboardType:UIKeyboardTypeNumberPad]; [accountField setClearsContextBeforeDrawing:YES]; [accountField setText:[[NSUserDefaults standardUserDefaults] objectForKey:@"account"]]; [self.view addSubview:accountField]; passField=[[UITextField alloc]initWithFrame:CGRectMake(50, 160, 200, 40)]; [passField setBackgroundColor:[UIColor redColor]]; [passField setText:[[NSUserDefaults standardUserDefaults] objectForKey:@"password"]]; [passField setKeyboardType:UIKeyboardTypeNumberPad]; [passField setClearsContextBeforeDrawing:YES]; [self.view addSubview:passField]; UIButton *loginBut=[UIButton buttonWithType:UIButtonTypeRoundedRect]; loginBut.backgroundColor=[UIColor greenColor]; loginBut.frame=CGRectMake(70, 220, 100, 40); [loginBut setTitle:@"登陆" forState:UIControlStateNormal]; [loginBut addTarget:self action:@selector(login) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:loginBut]; } -(void)login { [self.navigationController popViewControllerAnimated:YES]; }
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