如何将用户标识保存在 nsuserdefaults 中？

Question

当我使用我的电子邮件和密码登录到我的应用程序时，我当时成功收到回复，将我的用户 ID 保存到 nsuserdefaults，我该怎么做？

这是我的代码：

-(void)signInMethod
{
    NSString *accessKey = @"akjsda9s8dadandl4";
    NSData *returnData;
    returnData=[[WebServices alloc]loginTest:emailTxtFld.text andPassword:pswdTxtFld.text andSESSION_ACCESS_KEY:accessKey];
    if (returnData.length>0)
    {
        NSError *error;
        NSDictionary *res=[NSJSONSerialization JSONObjectWithData:returnData options:kNilOptions error:&error];
        NSLog(@"SignIn response is %@",res);
        NSString *msg = [res valueForKey:@"userid"];
        NSLog(@"%@",msg);
    }
}

从上面的代码WebServices是我的服务Class。如何保存该用户 ID？

Answer 1

商店

为了在NSUserDefaults中存储String你可以直接使用setObject

[[NSUserDefaults standardUserDefaults] setObject:[res valueForKey:@"userid"] forKey:@"userid"];
[[NSUserDefaults standardUserDefaults] synchronize];

检索

获取NSUserDefaults中的String可以直接使用objectForKey

NSString *Value = [[NSUserDefaults standardUserDefaults]objectForKey:@"userid"];

删除用户默认值

如果你的工作结束了你想清除userdefault的内存使用下面的代码

[[NSUserDefaults standardUserDefaults] removeObjectForKey:@"userid"];

Swift

商店

NSUserDefaults.standardUserDefaults().setObject(res["userid"], forKey: "userid")

检索

 var Value: String = NSUserDefaults.standardUserDefaults().objectForKey("userid")

删除用户默认值

NSUserDefaults.standardUserDefaults().removeObjectForKey("userid")

Answer 2

 -(void)signInMethod
{
NSString *accessKey = @"akjsda9s8dadandl4";
NSData *returnData;
returnData=[[WebServices alloc]loginTest:emailTxtFld.text andPassword:pswdTxtFld.text andSESSION_ACCESS_KEY:accessKey];
if(returnData.length>0)
{
    NSError *error;
    NSDictionary *res=[NSJSONSerialization JSONObjectWithData:returnData options:kNilOptions error:&error];
    NSLog(@"SignIn response is %@",res);
    NSString *msg = [res valueForKey:@"userid"];

   [[NSUserDefaults standardUserDefaults] setObject:msg forKey:@"userid"];
   [[NSUserDefaults standardUserDefaults] synchronize];


    NSLog(@"%@",msg);
}
}

检索使用

NSString *UDID = [[NSUserDefaults standardUserDefaults] objectForKey:@"userid"];

Answer 3

使用此代码将电子邮件和密码以及 userId 保存到 NSUserDefault。

 -(void)signInMethod
{
NSString *accessKey = @"akjsda9s8dadandl4";
NSData *returnData;
returnData=[[WebServices alloc]loginTest:emailTxtFld.text andPassword:pswdTxtFld.text andSESSION_ACCESS_KEY:accessKey];
if(returnData.length>0)
{
    NSError *error;
    NSDictionary *res=[NSJSONSerialization JSONObjectWithData:returnData options:kNilOptions error:&error];
    NSLog(@"SignIn response is %@",res);
    NSString *msg = [res valueForKey:@"userid"];

    [[NSUserDefaults standardUserDefaults] setObject:emailTxtFld.text forKey:@"email"];
    [[NSUserDefaults standardUserDefaults] setObject:pswdTxtFld.text forKey:@"password"];
    [[NSUserDefaults standardUserDefaults] setObject:msg forKey:@"userid"];
    [[NSUserDefaults standardUserDefaults] synchronize];

    NSLog(@"%@",msg);
}
}

如何将用户标识保存在 nsuserdefaults 中？

how to save the userid in nsuserdefaults?

objective-c

nsuserdefaults

ios

swift