How can I change size of UINavigationItem's leftBarButtonItem

Question

I want to change the size of leftBarButtonItem.
If I go with custom barButtonItem then I would not get the sign of previous on that button.
Here I got success to make small text via setting following code in didFinishLaunchingWithOptions method.

[[UIBarButtonItem appearanceWhenContainedIn:[UINavigationBar class], nil] setTitleTextAttributes:
     @{NSFontAttributeName:[UIFont systemFontOfSize:12.0]} forState:UIControlStateNormal];

But sign of previous is not changing.

Is there any way (other-than set image) to make small that sign? I have also tried to change scale of that leftBarButtonItem but there is not method available to do so.

Would you like to set custom NavigationBar??, if yes, the refere http://stackoverflow.com/questions/29664778/creating-a-uibarbutton-centered-programmatically/29665257#29665257 — Viral Savaj, Apr 30 '15 at 12:02
@ViralSavaj, I have no problem to set custom but May I able to get previous sign in custom button? — Mrugesh Tank, Apr 30 '15 at 12:05
If you like to show ( < ) previous then you have to make one image for that ans set Image of back button, if don;t want then no need at all. — Viral Savaj, Apr 30 '15 at 12:07
Agree with @SKT, you can simple add custom button to Navigationbar also. — Viral Savaj, Apr 30 '15 at 12:09
No, Change the size of Image of default previous button, in navigation controller is not possible, — Viral Savaj, Apr 30 '15 at 12:19

score 1 · Answer 1 · answered Apr 30 '15 at 12:29

UIView *viewLeftSide = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, 100.0, 30.0)];
viewLeftSide.userInteractionEnabled = YES;

UIButton *btn1 = [[UIButton alloc] initWithFrame:CGRectMake(0.0, 5.0, 20.0, 20.0)];
[btn1 setImage:[UIImage imageNamed:@"img1"] forState:UIControlStateNormal];
[btn1 addTarget:self action:@selector(sel1) forControlEvents:UIControlEventTouchUpInside];
[viewLeftSide addSubview:btn1];

UIButton *btn = [[UIButton alloc] initWithFrame:CGRectMake(50.0, 5.0, 20.0, 20.0)];
[btn2 setImage:[UIImage imageNamed:@"img2"] forState:UIControlStateNormal];
[btn2 addTarget:self action:@selector(sel2) forControlEvents:UIControlEventTouchUpInside];
[viewLeftSide addSubview:btn2];

UIBarButtonItem *leftBarItem = [[UIBarButtonItem alloc] initWithCustomView:viewLeftSide];

self.tabBarController.navigationItem.leftBarButtonItem = leftBarItem;

score 0 · Answer 2 · answered Apr 30 '15 at 12:49

 UIBarButtonItem* backButton = [[UIBarButtonItem alloc]initWithTitle:@"Back" style:UIBarButtonItemStylePlain target:self action:@selector(barButtonBackPressed:)];


UIImage *backImage = [UIImage imageNamed:@"backarrow11.png"];
UIButton *back = [UIButton buttonWithType:UIButtonTypeCustom];
back.bounds = CGRectMake( 0, 0, 17, 17);
[back setImage:backImage forState:UIControlStateNormal];
[back addTarget:self action:@selector(barButtonBackPressed:)forControlEvents: UIControlEventTouchUpInside];

UIBarButtonItem *barBtn2 = [[UIBarButtonItem alloc] initWithCustomView:back];
self.navigationItem.leftBarButtonItems=[NSArray arrayWithObjects:barBtn2,backButton, nil];

How can I change size of UINavigationItem's leftBarButtonItem

2 Answers2