Save data into NsuserDefault using objective C

- (IBAction)SaveUsingNsuserDefault:(id)sender

{

NSMutableArray* mutableArry   =  [[NSMutableArray alloc] init];

    NSMutableDictionary *array = [[NSMutableDictionary alloc]init];

    [array setObject:txtName.text forKey:@"name"];

    [array setObject:txtCity.text forKey:@"city"];

    [array setObject:txtPass.text forKey:@"pass"];

    

    NSMutableArray *studentArray;

    NSUserDefaults *currentDefaults = [NSUserDefaults standardUserDefaults];

    NSArray *previousSavedArray = [currentDefaults objectForKey:@"saveStudents"];

    if (previousSavedArray != nil)

        studentArray = [[NSMutableArray alloc] initWithArray:previousSavedArray];

    else

        studentArray = [[NSMutableArray alloc] init];

    

    NSMutableArray* arrStudentDetails = [currentDefaults objectForKey:@"saveStudents"];

    

    mutableArry = arrStudentDetails;

    

    if([[txtName.text checkNullFromString:txtName.text] isEqualToString:@""]|| [[txtCity.text checkNullFromString:txtCity.text] isEqualToString:@""]|| [[txtPass.text checkNullFromString:txtPass.text] isEqualToString:@""])

    {

        UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"Required" message:@"Empty Field not allowed !!" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

        [alert show];

        

        if([mutableArry count]>0)

        {

            [self.tblEmpDetails reloadData];

        }

        return;

    }

   

        int j = [previousSavedArray count];

        for (int i = 0; j>i; i++) 

        {

            NSString* strName = [[previousSavedArray objectAtIndex:i]valueForKey:@"name"];

            if([strName isEqualToString:txtName.text])

            {

                

                UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"Exist" message:@"Record allready exist !!" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

                [alert show];

                return;

            }

        }

    

    [studentArray addObject:array];

    [currentDefaults setObject:studentArray forKey:@"saveStudents"];

    [currentDefaults synchronize];

    

        UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"Success" message:@"Saved successfully !!" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

        [alert show];

    

     arrStudentDetails = [currentDefaults  objectForKey:@"saveStudents"];

    mutableArry = arrStudentDetails;

    if([mutableArry count]>0)

    {

        [self.tblEmpDetails reloadData];

    }

}

Code for insert,retrieve and delete data using coredata using objective C in IOS

Before start coding we have to follow some steps..

1. Create a new empty project with coredata.

   . open xcode

   . go to file create new project and select empty application

   . Click next and do not miss to check the coredata chekbox..

    next...

2. if needed we have to add CoreData.framework(by default added with core data project..)

TestAppDelegate* appdelegate = [[UIApplication sharedApplication]delegate];

   NSManagedObject* context = appdelegate.managedObjectContext; 

// Insert into
NSMutableArray*  mutableArry = [[NSMutableArray alloc]init]

-(void)insertIntoCoreData

{

    if([[self exstingrecord] isEqualToString:[txtName.text lowercaseString]])

    {

        UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"Exist" message:@"Record allready exist !" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

        [alert show];

        txtName.text = [[mutableArry objectAtIndex:0]valueForKey:@"name"];

        txtCity.text = [[mutableArry objectAtIndex:0]valueForKey:@"city"];

        txtPass.text = [[mutableArry objectAtIndex:0]valueForKey:@"pass"];

        return;

    }

    else

    {

        

        

            // Create a new object

            object = [NSEntityDescription insertNewObjectForEntityForName:@"Emp" inManagedObjectContext:context];

            [object setValue:self.txtName.text forKey:@"name"];

            [object setValue:self.txtCity.text forKey:@"city"];

            [object  setValue:self.txtPass.text forKey:@"pass"];

        

        NSError *err ;

        if(![context save:&err])

        {

            NSLog(@"Faild");

        }

        else

        {

            UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"Saved" message:@"Data saved successfully" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

            [alert show];

            txtName.text = @"";

            txtCity.text = @"";

            txtPass.text = @"";

            

        }

    }

    

    [self fetchrecord];

    

    

    

}

// Retrieve from

-(void)fetchrecord

{

    NSFetchRequest *request = [[NSFetchRequest alloc]init];

    NSEntityDescription* entity = [NSEntityDescription entityForName:@"Emp" inManagedObjectContext:context];

    [request setEntity:entity];

    NSError *error = nil;

    arr = [context executeFetchRequest:request error:&error];

    mutableArry = [[NSMutableArray alloc]init];

    [mutableArry addObjectsFromArray:arr];

    

    [self.tblEmpDetails reloadData];

}

// Delete from 

-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath

{

    

        

        if (editingStyle == UITableViewCellEditingStyleDelete)

        {

            // Delete object from database

            [context deleteObject:[mutableArry objectAtIndex:indexPath.row]];

            

            NSError *error = nil;

            if (![context save:&error]) 

            {

                NSLog(@"Can't Delete! %@ %@", error, [error localizedDescription]);

                return;

            }

            

            // Remove device from table view

            [mutableArry removeObjectAtIndex:indexPath.row];

            [self.tblEmpDetails deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];

        }

}

code for Save data into plist using objective C and retrieve from and display with uitableview..

/*

 1) Create a list of paths.

 2) Get a path to your documents directory from the list.

 3) Create a full file path.

 4) Check if file exists.

 5) Get a path to your plist created before in bundle directory (by Xcode).

 6) Copy this plist to your documents directory.

 */

- (IBAction)SaveUsingPlist:(id)sender 

{

    NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentsPath = [paths objectAtIndex:0];

    NSString *plistPath = [documentsPath stringByAppendingPathComponent:@"plist.plist"];

    NSMutableArray *friend = [NSMutableArray arrayWithContentsOfFile:plistPath];

    

    mutableArry = friend;

    

     if([[txtName.text checkNullFromString:txtName.text] isEqualToString:@""]|| [[txtCity.text checkNullFromString:txtCity.text] isEqualToString:@""]|| [[txtPass.text checkNullFromString:txtPass.text] isEqualToString:@""])

    {

        UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"Required" message:@"Empty Field not allowed !!" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

        [alert show];

        

        if([mutableArry count]>0)

        {

            [self.tblEmpDetails reloadData];

        }

        return;

    }

    

    if (nil == friend)

    {

        friend = [[NSMutableArray alloc] initWithCapacity:0];

        

        NSMutableDictionary *array = [[NSMutableDictionary alloc]init];

        [array setObject:txtName.text forKey:@"name"];

        [array setObject:txtCity.text forKey:@"city"];

        [array setObject:txtPass.text forKey:@"pass"];

        [friend addObject:array];

        [friend writeToFile:plistPath atomically: TRUE];

        

        UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"Success" message:@"Saved successfully !!" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

        [alert show];

        

    }

    else 

    {

       int j = [friend count];

        for (int i = 0; j>i; i++) 

        {

             NSString* strName = [[friend objectAtIndex:i]valueForKey:@"name"];

            if([strName isEqualToString:txtName.text])

            {

                

                UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"Exist" message:@"Record allready exist !!" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

                [alert show];

                return;

            }

        }

        NSMutableDictionary *array = [[NSMutableDictionary alloc]init];

        [array setObject:txtName.text forKey:@"name"];

        [array setObject:txtCity.text forKey:@"city"];

        [array setObject:txtPass.text forKey:@"pass"];

        [friend addObject:array];

        [friend writeToFile:plistPath atomically: TRUE];

        

        

        UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"Success" message:@"Saved successfully !!" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

        [alert show];

    }

    

    friend = [NSMutableArray arrayWithContentsOfFile:plistPath];

    mutableArry = friend;

    if([mutableArry count]>0)

    {

        [self.tblEmpDetails reloadData];

    }

    

}

AFNetworking

Note:  Before start coding download the afnetworking archive and add in your project from following link...

http://four-developers.com/documents/AFNetworking.zip

#pragma mark- AFNetworking

-(void)makeRestuarantRequests

{

    NSURL *url = [NSURL URLWithString:@"http://four-developers.com/service1.svc/getdata/aa"];

    

    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    //AFNetworking asynchronous url request

    AFJSONRequestOperation *operation = [AFJSONRequestOperation

                                         JSONRequestOperationWithRequest:request

                                         success:^(NSURLRequest *request, NSHTTPURLResponse *response, id responseObject)

                                         {

                                             arrEmp = [[NSArray alloc]initWithObjects:responseObject, nil];

                                    

                                             

                                             [self generateTableView];

                                             tblemployee.dataSource = self;

                                         }

                                         failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id responseObject)

                                         {

                                             NSLog(@"Request Failed: %@, %@", error, error.userInfo);

                                         }];

    

    [operation start];

    

}