Question

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How can I create a registeration form connected with an xml webservice?

I’ve to create a registration and login form in connection with web service. How can i send the registration details in to web service? And how can i log in using the username and password from web service? Help me.

Answer 1

Firstly learn the basic of Web Service here

This article will give you a good understanding of how to communicate with XML web services from within your iPhone application, and the examples will provide a solid foundation for consuming other web services in your own projects.

http://www.allappsdevelopers.com/TopicDetail.aspx?TopicID=97963e2d-37a5-4e48-b434-3fced80d2b55

Example:

-(UITextField*) customTextfield:(NSString*)fieldType textName:(NSString*)str initFrame:(CGRect)frame
{
        UITextField *customField = [[UITextField alloc] initWithFrame:frame];
    customField.delegate = self;
    customField.adjustsFontSizeToFitWidth = NO;
    customField.borderStyle = UITextBorderStyleRoundedRect;
        customField.textColor = [UIColor blackColor];
    customField.clearButtonMode = UITextFieldViewModeWhileEditing;
    customField.clearsOnBeginEditing = NO;
    customField.autocapitalizationType = UITextAutocapitalizationTypeNone;
    customField.autocorrectionType = UITextAutocorrectionTypeNo;
    customField.enablesReturnKeyAutomatically = YES;
    customField.returnKeyType = UIReturnKeyDefault;
    customField.placeholder = NSLocalizedString(str, nil);
    customField.keyboardType = UIKeyboardTypeDefault;
    return customField;
}



 - (void)viewDidLoad
    { 

        txtfname = [self customTextfield:@"" textName:@"" initFrame:CGRectMake(120, 75, 160, 30)];
        [self.view addSubview:txtfname];

        txtlastname = [self customTextfield:@"" textName:@"" initFrame:CGRectMake(120, 115, 160, 30)];
        [self.view addSubview:txtlastname];

        txtemail = [self customTextfield:@"" textName:@"" initFrame:CGRectMake(120, 155, 160, 30)];
        [self.view addSubview:txtemail];

        txtpwd = [self customTextfield:@"" textName:@"" initFrame:CGRectMake(120, 195, 160, 30)];
        txtpwd.secureTextEntry=YES;
        [self.view addSubview:txtpwd];

        txtRePwd= [self customTextfield:@"" textName:@"" initFrame:CGRectMake(120, 235, 160, 30)];
        txtRePwd.secureTextEntry=YES;
        [self.view addSubview:txtRePwd];
    }

On Form Submit

-(void) fieldValidate
{
    NSString *emailRegEx =@"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
    NSPredicate *regExpred =[NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegEx];
    BOOL myStringCheck = [regExpred evaluateWithObject:txtemail.text];

    if ([txtfname.text length]==0) {
        [self callAlert:@"Please Enter First Name"];
        [txtfname becomeFirstResponder];
        return;
    }
    else if ([txtlastname.text length]==0) {
        [self callAlert:@"Please Enter Last Name"];
        [txtlastname becomeFirstResponder];
        return;

    }
    else if(!myStringCheck){
        [self callAlert:@"Email address should be in [e-mail]  format"];  
        [txtemail becomeFirstResponder];
        return;
    }
    else if ([txtpwd.text length]==0) {
        [self callAlert:@"Password should have atleast 1 characters"];
        [txtpwd becomeFirstResponder];
        return;
    }
    else if ([txtRePwd.text length]==0) {
        [self callAlert:@"Password should have atleast 1 characters"]; 
       // [txtRePwd becomeFirstResponder];
        return;
    }
    else if (![txtpwd.text isEqualToString:txtRePwd.text])
    {
        [self callAlert:@"Password And Repassword Mismatched"];
        [txtpwd becomeFirstResponder];
        return;
    }

    [txtfname resignFirstResponder];
    [txtlastname resignFirstResponder];
    [txtemail resignFirstResponder];
    [txtpwd resignFirstResponder];
    [txtRePwd resignFirstResponder];


    NSString *Restrqst = [NSString stringWithFormat:@"<user>\n"
                          "<account_attributes><first_name>%@</first_name></account_attributes>\n"
                          "<lastName>%@</lastName>\n"
                          "<email>%@</email>\n"
                          "<password>%@</password>\n"
                          "<password_confirmation>%@</password_confirmation>\n"
                          "</user>\n",txtfname.text,txtlastname.text,txtemail.text,txtpwd.text];  

    NSURL *RestURL = [NSURL URLWithString:@"www.xxxx.com/signup"];

  ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:RestURL];
    [request setDelegate:self];
    request.shouldPresentCredentialsBeforeChallenge = YES ;
    [request addRequestHeader:@"Content-Type" value:@"application/xml"];
    [request appendPostData:[Restrqst dataUsingEncoding:NSUTF8StringEncoding]];
    [request setRequestMethod:@"POST"];

    [request setDidFinishSelector:@selector(requestDone:)];
    [request setDidFailSelector:@selector(requestWentWrong:)];
    [request startAsynchronous];

   }