UIBarButtonItem UIBarButtonSystemItemRefresh example in Objective C (iOS).

UIBarButtonItem UIBarButtonSystemItemRefresh

UIBarButtonSystemItem
Defines system-supplied images for bar button items.

typedef enum {
UIBarButtonSystemItemDone,
UIBarButtonSystemItemCancel,
UIBarButtonSystemItemEdit,
UIBarButtonSystemItemSave,
UIBarButtonSystemItemAdd,
UIBarButtonSystemItemFlexibleSpace,
UIBarButtonSystemItemFixedSpace,
UIBarButtonSystemItemCompose,
UIBarButtonSystemItemReply,
UIBarButtonSystemItemAction,
UIBarButtonSystemItemOrganize,
UIBarButtonSystemItemBookmarks,
UIBarButtonSystemItemSearch,
UIBarButtonSystemItemRefresh,
UIBarButtonSystemItemStop,
UIBarButtonSystemItemCamera,
UIBarButtonSystemItemTrash,
UIBarButtonSystemItemPlay,
UIBarButtonSystemItemPause,
UIBarButtonSystemItemRewind,
UIBarButtonSystemItemFastForward,
UIBarButtonSystemItemUndo, // iOS 3.0 and later
UIBarButtonSystemItemRedo, // iOS 3.0 and later
UIBarButtonSystemItemPageCurl, // iOS 4.0 and later
} UIBarButtonSystemItem;

UIBarButtonItem UIBarButtonSystemItemRefresh example.

UIBarButtonItem *button = [[UIBarButtonItem alloc]
     initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh
     target:self
         action:@selector(refresh:)];
self.navigationItem.rightBarButtonItem = button;
[button release];

Example of [UIBarButtonItem UIBarButtonSystemItemRefresh].

UIBarButtonItem *rButton = [[UIBarButtonItem alloc]
    initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh  
                         target:self
                         action:@selector(refreshAction)];

UIBarButtonItem UIBarButtonSystemItemRefresh example.

toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0 , 320 , 60)];

UIBarButtonItem *flexibleSpace =  [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];

UIBarButtonItem *barButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:self action:@selector(refreshButtonAction:)];

NSArray *toolbarItems = [NSArray arrayWithObjects:flexibleSpace, barButton, flexibleSpace];

[toolBar setItems:toolbarItems animated:NO];

[self.view addSubview:toolBar];

End of UIBarButtonItem UIBarButtonSystemItemRefresh example article.