Question

I have code in my .h file as follows

@interface tweetViewController : UIViewController<UIPickerViewDataSource ,UIPickerViewDelegate> {

    NSArray *activities;
    NSArray *feelings;

}

and in my .m file i used @synthesize property

#import "tweetViewController.h"
@synthesize activites,feelings;

but it shows me error message….

Answer 1

You need to put it in an implementation.

Replace the @synthesize ... line with this:

@implementation tweetViewController
@synthesize activities, feelings;

@end

You also need to declare @propertys for this, and close the @interface the correct way:

Replace the following lines:

@interface tweetViewController : UIViewController<UIPickerViewDataSource ,UIPickerViewDelegate> {

    NSArray *activities;
    NSArray *feelings;

}

With this:

@interface tweetViewController : UIViewController<UIPickerViewDataSource , UIPickerViewDelegate>

@property (nonatomic, retain) NSArray *activities;
@property (nonatomic, retain) NSArray *feelings;

@end