Developer new to iPhone

Hello Everyone,

I'm familiar with quite a number of languages, but I just can't seem to get objective-c.

I'm trying to write a basic temp convertor programmer just to understand the basics of the languages, but I keep getting errors and warnings.

The main error I'm getting is " Can't convert to pointer"

here's my .h file:



and here's the .m file



Any ideas? I know that if I can understand what's going on, then I can understand the basics of objective-c.

Anyone?......

I took a few hours out and did some coding for you. Im a newbie, but I aint giving up.

Most of it is done for you, still some parts left.

Everythings there, appdelegate class, viewcontrolller and nib file. etc


h t t p : / / w w w . m j c a r s p a r e s . c o . u k / p r o j y . z i p


pasted below as well. (I obviously cant paste the NIB file here!)




//
// tempConvertViewController.h
// tempConvert
//
// Created by Qessar on 13/06/2010.
// Copyright __MyCompanyName__ 2010. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface tempConvertViewController : UIViewController {


IBOutlet UITextField *temp;
IBOutlet UITextField *type;
IBOutlet UILabel *final;

}


@property (nonatomic, retain) IBOutlet UITextField *temp;
@property (nonatomic, retain) IBOutlet UITextField *type;
@property (nonatomic, retain) IBOutlet UILabel *final;


-(IBAction) convert;




@end



//
// tempConvertViewController.m
// tempConvert
//
// Created by Qessar on 13/06/2010.
// Copyright __MyCompanyName__ 2010. All rights reserved.
//

#import "tempConvertViewController.h"

@implementation tempConvertViewController


@synthesize temp;

@synthesize type;

@synthesize final;



-(IBAction)convert{


}




- (BOOL)textFieldShouldReturnUITextField *)textField {

double tempValue = [temp.text doubleValue];

if ([type.text isEqualToString:@"C"] || [type.text isEqualToString:@"c"]) {

tempValue = (((tempValue/5)*9)+32);

}



NSString *result = [NSString stringWithFormat:@"%f", tempValue];

[temp resignFirstResponder];
final.text = result;
[textField resignFirstResponder];
return YES;

}




/*
// The designated initializer. Override to perform setup that is required before the view is loaded.
- (id)initWithNibNameNSString *)nibNameOrNil bundleNSBundle *)nibBundleOrNil {
if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])) {
// Custom initialization
}
return self;
}
*/

/*
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
}
*/


/*
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
}
*/


/*
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientationUIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/

- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];

// Release any cached data, images, etc that aren't in use.
}

- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}


- (void)dealloc {
[super dealloc];
}

@end

Hi,
I would like to get an iphone, but the new one is very expensive. However, the iphone 3G is cheaper and so i was wondering, are you able to download features such as horizontal texting on to the iphone? Can you give me a site if possible that would let me know this. Thanks in advance!
____________________________
free calls from PC to mobile

I'm guessing you're running it unlocked on tmobile? Otherwise if you're worried about money you can get a 3gs from att for 99.

But yes, the updated os has landscape.