UIBarButtonItem UIBarButtonSystemItemStop example in Objective C (iOS).

UIBarButtonItem UIBarButtonSystemItemStop

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 UIBarButtonSystemItemStop example.

UIBarButtonItem *oldButton = [myToolBar.items objectAtIndex:1];
[myToolBar setItems:[NSArray arrayWithObjects:[myToolBar objectAtIndex:0], [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemStop target:self action:@selector(tapStopRefreshButton:)],nil] animated:NO];
[oldButton release];

Example of [UIBarButtonItem UIBarButtonSystemItemStop].

    //toolbar
UIToolbar *toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 416, 320, 44)];

// bar btns
UIBarButtonItem *backBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRewind target:self action:@selector(goBack)];
UIBarButtonItem *forwardBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFastForward target:self action:@selector(goForward)];
UIBarButtonItem *flexibleSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];
UIBarButtonItem *bookmarkBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemBookmarks target:self action:@selector(bookmark)];
UIBarButtonItem *refreshBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:self action:@selector(refresh)];
UIBarButtonItem *stopLoadingBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemStop target:self action:@selector(stopLoading)];

// add btns to the bar
[toolBar setItems:[NSMutableArray arrayWithObjects:bookmarkBtn,backBtn,forwardBtn,flexibleSpace,refreshBtn,stopLoadingBtn, nil]];

// adds the toobar to the view
[self.view addSubview:toolBar];

UIBarButtonItem UIBarButtonSystemItemStop example.

@property (nonatomic, strong) IBOutlet UIToolbar *webToolbar;
@property (nonatomic, strong) UIBarButtonItem *backButton;
@property (nonatomic, strong) UIBarButtonItem *forwardButton;
@property (nonatomic, strong) UIBarButtonItem *refreshButton;
@property (nonatomic, strong) UIBarButtonItem *stopButton;
@property (nonatomic, strong) UIBarButtonItem *flexibleItem;

- (void)toolbarButtons
{
    self.backButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"UIButtonBarArrowLeft.png"] style:UIBarButtonItemStyleBordered target:self action:@selector(goBack)];

    self.forwardButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"UIButtonBarArrowRight.png"] style:UIBarButtonItemStyleBordered target:self action:@selector(goForward)];

    self.backButton.enabled = [self.webView canGoBack];
    self.forwardButton.enabled = [self.webView canGoForward];

    self.flexibleItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
                                                                  target:nil
                                                                  action:nil];

    self.refreshButton = [[UIBarButtonItem alloc]
                      initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh
                      target:self action:@selector(refreshWebView)];

    self.refreshButton.style = UIBarButtonItemStyleBordered;

    self.stopButton = [[UIBarButtonItem alloc]
                      initWithBarButtonSystemItem:UIBarButtonSystemItemStop
                      target:self action:@selector(stop)];

    self.stopButton.style = UIBarButtonItemStyleBordered;

    if(self.webView.loading)
    {
        NSArray *items = [NSArray arrayWithObjects: self.backButton, self.forwardButton, self.flexibleItem, self.stopButton, nil];
        [self.webToolbar setItems:items animated:NO];
    }
    else
    {
        NSArray *items = [NSArray arrayWithObjects: self.backButton, self.forwardButton, self.flexibleItem, self.refreshButton, nil];
        [self.webToolbar setItems:items animated:NO];
    }
}
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End of UIBarButtonItem UIBarButtonSystemItemStop example article.