Navigationbar right button is not placed correctly - ios

Question

I implemented a UITabBarController with 4 items.
I set the initial ViewController from AppDelegate.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
HomeTabBarViewController* homeVC = [[HomeTabBarViewController alloc] init];
[self.window setRootViewController:homeVC];
[self.window makeKeyAndVisible];
return YES;
}
Here is HomeTabBarViewController ViewDidLoad Code:
UIViewController *view1 = [[UIViewController alloc] init];
[view1.view setBackgroundColor:[UIColor redColor]];
UIViewController *view2 = [[UIViewController alloc] init];
UINavigationController * centerNav=[[UINavigationController alloc]initWithRootViewController:view1];
HomePagingViewController * view3=(HomePagingViewController*)[storyboard instantiateViewControllerWithIdentifier:#"HomePagingViewController"];
UINavigationController * centerNav3=[[UINavigationController alloc]initWithRootViewController:view3];
UIViewController *view4 = [[UIViewController alloc] init];
UINavigationController * centerNav4=[[UINavigationController alloc]initWithRootViewController:view4];
[view2.view setBackgroundColor:[UIColor greenColor]];
[view3.view setBackgroundColor:[UIColor purpleColor]];
[view4.view setBackgroundColor:[UIColor grayColor]];
NSMutableArray *tabViewControllers = [[NSMutableArray alloc] init];
[tabViewControllers addObject:centerNav];
[tabViewControllers addObject:view2];
[tabViewControllers addObject:centerNav3];
[tabViewControllers addObject:centerNav4];
[self setViewControllers:tabViewControllers];
view1.tabBarItem = [[UITabBarItem alloc] initWithTitle:#"Home"
image:[UIImage imageNamed:#"home_tab_item.png"] selectedImage:[UIImage imageNamed:#"home_tab_item_active.png"]] ;
view2.tabBarItem =
[[UITabBarItem alloc] initWithTitle:#"Bookmark"
image:[UIImage imageNamed:#"bookmark_tab_item.png"] selectedImage:[UIImage imageNamed:#"bookmark_tab_item_active.png"]];
view3.tabBarItem =
[[UITabBarItem alloc] initWithTitle:#"Paper"
image:[UIImage imageNamed:#"paper_tab_item.png"] selectedImage:[UIImage imageNamed:#"paper_tab_item_active.png"]];
view4.tabBarItem =
[[UITabBarItem alloc] initWithTitle:#"More"
image:[UIImage imageNamed:#"menu_tab_item.png"] selectedImage:[UIImage imageNamed:#"menu_tab_item_active.png"]];
In HomePagingViewController ViewDidLoad I setUp a Navigation as in code
-(void)navigationSetUp{
self.navigationController.navigationBar.translucent=NO;
UIBarButtonItem * settingBtn=[[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:#"settings.png"] style:UIBarButtonItemStylePlain target:self action:#selector(menuHandler:)];
UIBarButtonItem * searchBtn=[[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:#"settings.png"] style:UIBarButtonItemStylePlain target:self action:#selector(menuHandler:)];
self.navigationItem.leftBarButtonItem = settingBtn;
self.navigationItem.rightBarButtonItem = searchBtn;
self.navigationItem.titleView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"ie_New_logo.png"]];
}
After this when I changed the tab for HomePagingViewController the navigation right button not placed correctly there is no margin from right.
Refer Image :
Please Help.

Answer 1

I resolved the issue , there is no issue with the code . Actually for Epaper we using third party SDK So that this problem occur.I Removed SDK & the code is working fine now.

Answer 2

you should think UIBarButtonSystemItemFixedSpace effect.
eg:
UIBarButtonItem * space = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
--
Why use a system navigation bar ？Custom navigation bar is nice！like:https://github.com/chenliangloveyou/EasyNavigation