CODEWITHSUNDEEP
iosuinavigationcontroller
Halpo
Halpo

Reputation: 3134

iOS back button has no padding

When I push a viewcontroller on my navigation stack, the back button appears to be against the left side of the screen. How can I get the regular padding of the back button?

No padding

Here is how I present the view controller:

- (void)goToCollection:(UIButton *)btn {
    Card *colCard = (Card *)btn.userData;
    WViewController *vc = [WViewController new];
    NSString *colID = [[colCard.href componentsSeparatedByString:@"/"] lastObject];
    vc.collectionID = colID;
    [self.navigationController pushViewController:vc animated:YES];
}

Here's my view setup in didFinishLaunchingWithOptions :

//Profile View
ProfileViewController *pv = [ProfileViewController new];
UINavigationController *profNav = [[UINavigationController alloc] initWithRootViewController:pv];
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
[self.window setRootViewController:profNav];
[self.window setTintColor:[UIColor Primary]];
[self.window makeKeyAndVisible];

Upvotes: 2

Views: 4947

Answers (2)

Vikas Mishra
Vikas Mishra

Reputation: 244

As per apple documentation, you can not edit or modify back button in any case. Only allowed operation for back button is show and hide . So if you want something to do with back button, you need to hide it and create a customise left bar button item as back button.

self.navigationItem.hidesBackButton = YES; //hides back button
    UIButton *myButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 40, 40)]; // creates a new button
    [myButton setImage:[UIImage backButtonImage]; // sets image for new button
    [myButton setContentEdgeInsets:UIEdgeInsetsMake(0, -15, 0, 0)];//content edgeInset to provide required padding
    [myButton addTarget:self action:@selector(backToHOmePage) forControlEvents:UIControlEventTouchUpInside];//adding target for new button
    UIBarButtonItem *customBackBtn = [[UIBarButtonItem alloc] initWithCustomView:myButton]; //custom bar button item
    self.navigationItem.leftBarButtonItem = customBackBtn; //assigning to left bar button item

-(void)backToHOmePage
{
    [self.navigationController popViewControllerAnimated:YES];
} // method to be triggered on tapping above button

Upvotes: 4

HannahCarney
HannahCarney

Reputation: 3631

Put this in your AppDelegate

[[UIBarButtonItem appearance] setBackButtonBackgroundVerticalPositionAdjustment:-3 forBarMetrics:UIBarMetricsDefault];

Upvotes: 1

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