账号密码存储

//

//  ViewController.m

//

#import "ViewController.h"

@interface ViewController ()

@property (weak, nonatomic) IBOutlet UITextField *userTF;

@property (weak, nonatomic) IBOutlet UITextField *passWordTF;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

}

//点击登录方法

- (IBAction)login:(id)sender {

    //创建NSUserDefaults对象

    NSUserDefaults*userDes=[NSUserDefaults standardUserDefaults];

    //获取NSUserDefaults的账户

    NSString*user=[userDesobjectForKey:@"user"];

    NSString*pass=[userDesobjectForKey:@"pass"];

    //判断是否成功  如果user，pass和输入框的文字相同 则登录成功 否则失败

    if([self.userTF.text isEqualToString:user]&&[self.passWordTF.text isEqualToString:pass]){

        //创建提示框

        UIAlertView*alertV=[[UIAlertViewalloc]initWithTitle:@"提示框"message:@"登录成功"delegate:selfcancelButtonTitle:@"确定"otherButtonTitles:nil,nil];

        //展示提示框

        [alertVshow];

    }else{

        //创建提示框

        UIAlertView*alertV=[[UIAlertViewalloc]initWithTitle:@"提示框"message:@"登录失败"delegate:selfcancelButtonTitle:@"确定"otherButtonTitles:nil,nil];

        //展示提示框

        [alertVshow];

    }

}

//点击注册方法

- (IBAction)zhuCe:(id)sender {

    //获取输入框的文字

    NSString*userStr =self.userTF.text;

    NSString*passStr=self.userTF.text;

    //将获取的文字存储到    NSUserDefaults

    if(self.userTF.text.length!=0&&self.passWordTF.text.length!=0){

        //创建    NSUserDefaults

        NSUserDefaults*userDes=[NSUserDefaults standardUserDefaults];

        //存储

        [userDessetObject:userStrforKey:@"user"];

        [userDessetObject:passStrforKey:@"pass"];

    }else{

        //创建提示框

        UIAlertView*alertV=[[UIAlertView alloc]initWithTitle:@"提示框" message:@"用户名或密码不能为空" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:nil, nil];

        //展示提示框

        [alertVshow];

    }

}

@end