To customize my navigation bar, I did several steps:
create a subclass which inheriting from UINavigationBar class, do some customization like draw shadow or setting background image for the navigation bar.
create an empty xib file, which contains nothing but a navigation view controller.
set the class name for the navigation bar in the navigation view controller.
Everything works fine, but when I want to add another customized back button on the navigation bar, I tried to attach a UIBarButtonItem to the navigationItem.backbarbuttonitem, I have no idea how to get the navigationItem from the UINavigationBar subclass.
code sample:
// header file
#interface MyNavigationBar : UINavigationBar
#end
// implementation file
#implementation MyNavigationBar
-(void)drawRect:(CGRect)rect
{
// background image
UIImage* background_image = [UIImage imageNamed:#"my-navigation-bar.png"];
[self setBackgroundImage:background_image forBarMetrics:UIBarMetricsDefault];
// draw shadow
self.layer.masksToBounds = NO;
self.layer.shadowOpacity = 0.6;
self.layer.shadowOffset = CGSizeMake(0, 3);
}
#end
Is there any way to get the navigationItem entry in my customized UINavigationBar subclass, or I just did it the wrong way? :P
thanks :)
you can hide the uinavigationbar. then put a uiview which can have height and width of uinavigationbar. and then add as many as buttons can fit or you want. add uiimage to the view. you will have a nice customized uinavigation bar. you can mimic the back button by using popviewcontroller or poptorootviewcontroller.
Related
I want to developer app with a custom navigation bar like in the following images:
I think that i need to subclass UINavigationBar and add button to centre of nav bar, but i don't really know how to make navigation bar look like on image. Can you please give me advice what should i do, links to any kind of documentation would be awesome!
Similar questions about navBar that doesn't helped me:
ios back button in the bar
Use custom Navigation Bar in iOS
Custom Navigation Bar in iOS 5
rogcar
EDIT:
My idea is next: make custom navigation bar height little bigger than default size, and add background image with arrow in it and with some transparency on the edges.
If you want a button (you probably do want) you can achieve it completely by subclassing UINavigationBar. You should remember that height of UINavigationBar is read-only property.
Style but not tappable:
So let's assume we subclass the navigation bar and add button there. You could do this and it will be going look great. For example:
- (void)drawRect:(CGRect)rect
{
self.backgroundColor = [UIColor lightGrayColor];
UIButton *myButton = [[UIButton alloc] initWithFrame:CGRectMake(self.frame.size.width/2-50, 0 , 100, 100)];
[myButton setBackgroundColor:[UIColor lightGrayColor]];
[myButton setTitle:#"Normal" forState:UIControlStateNormal];
[myButton setTitle:#"Highlighted" forState:UIControlStateHighlighted];
[self addSubview:myButton];
[self sendSubviewToBack:myButton];
}
But you will facing a problem that your button is non tapeable below UINvaigationBar. (I post an image on the bottom of the answer)
So there is clearly not a path you want to follow. Don't even try that.
Style but not tappable 2:
You may override this method in your navigation bar subclass
- (CGSize) sizeThatFits:(CGSize)size {
return CGSizeMake(custom_width, custom_height);
}
And then mask it using UIBezierPath for example
The right (tappable) way:
You have to create a view stick to your UINavigationBar. What i will do here (if you want it to every screen) is:
Make a Category of UIViewController which can draw (for example - this is easiest way) UIButton.
Style this 'UIButton' whatever you want (if you want
Pin action to 'UIButton': [btn addTarget:self action:#selector(menuShow:) forControlEvents:UIControlEventTouchUpInside];
menuShow: method should be declare in your category
You can call drawing button every time you want to redraw view controller.
As you can see there there will be two separates View: UINavigationBar and UIButton. This is allow you to set content under this little button and make it tapable.
So why just don't hide navigation bar, and use different view? Because iOS7 ;) When Apple change it in iOS7 for example then you have to rebuild your pseudo NavigationBar, with only additional view, you don't need to do anything.
You do not need to subclass UINavigationBar. Create UIView add to it UIImageView as background with image in the shape you need, add button.
Subclass UINavigationController hide UINavigationBar, add custom navigation bar.
First Hide navigation bar using -
self.navigationController.navigationBarHidden = YES;
Then create UIView with required height,height of navigationBar is 44px.Then create background image view, object of required UIButton and add all objects on created UIView as a subview.It will look like navigationBar.Thank you.
You can add your custom shaped view as titleView on the navigation bar.
Just make sure that clipsToBounds is set to NO, so it doesn't get clipped.
The iOS7 Facebook App has a right side menu that can be shown by swiping right to left or clicking on the upper right button. When this menu is opened the there is a color transition in the entire status bar from blue to black and vice-versa when closed.
This image shows both status bar side-to-side
This looks like a very good solution for iOS Apps with side menus.
Any ideas or ways about how to accomplish this?
I am currently using JASidePanels.
Thanks!
I managed to find a very simple, elegant way to do this, that mimics the Facebook app functionality perfectly.
Here's my approach:
Create view with status bar frame
Set view background color to black, opacity to 0
Add view as subview to any root view (you need a view that will cover both the center view and the menus, so that it won't be confined to any single view - a good option for this is the container view controller used by your menu controller implementation)
Set view's opacity in your menu controller implementation's menu animation method
Here's my specific implementation, using MMDrawerController:
I subclassed MMDrawerController (I actually already had a subclass for using MMDrawerController with storyboards), and added this code to the class's init method:
// Setup view behind status bar for fading during menu drawer animations
if (OSVersionIsAtLeastiOS7()) {
self.statusBarView = [[UIView alloc] initWithFrame:[[UIApplication sharedApplication] statusBarFrame]];
[self.statusBarView setBackgroundColor:[UIColor blackColor]];
[self.statusBarView setAlpha:0.0];
[self.view addSubview:self.statusBarView];
}
// Setup drawer animations
__weak __typeof(&*self) weakSelf = self; // Capture self weakly
[self setDrawerVisualStateBlock:^(MMDrawerController *drawerController, MMDrawerSide drawerSide, CGFloat percentVisible) {
MMDrawerControllerDrawerVisualStateBlock block;
block = (drawerSide == MMDrawerSideLeft) ? [MMDrawerVisualState parallaxVisualStateBlockWithParallaxFactor:15.0] : nil; // Right side animation : Left side animation
if(block){
block(drawerController, drawerSide, percentVisible);
}
[weakSelf.statusBarView setAlpha:percentVisible]; // THIS IS THE RELEVANT CODE
}];
I also added self.statusBarView as a private property.
The first section of code creates a view, configures it, and adds it as a subview of the MMDrawerController subclass's view. The OSVersionIsAtLeastiOS7() method is a custom method that simplifies the check to see if the device is running iOS 7 (if it isn't, your custom view will show up below the status bar, which you don't want).
The second section of code is MMDrawerController's setDrawerVisualStateBlock method, which sets the animations code to be performed when a menu is being opened and closed. The first few lines of code are boilerplate code that sets one of the prebuilt animations blocks to each menu (I wanted parallax on the left, but nothing on the right). The relevant code is the last line of the block: [weakSelf.statusBarView setAlpha:percentVisible];, which sets the status bar view's opacity to match the percentage that the menu is currently open. This allows for the smooth cross animation you see in the Facebook app. You'll also notice I've assigned self to a variable weakSelf, so as to avoid the "retain cycle" compiler warning.
This is my specific approach using MMDrawerController and a subclass, which I did more for convenience because I already had the subclass in place, than because it is necessarily the best approach or the only way to do it. It could probably be implemented in several other ways, using MMDrawerController without a subclass, or using any other side-drawer menu implementation.
The ending result is a smooth fading to black animation behind the status bar, exactly as you see in the new Facebook app.
I've been trying to accomplish the same thing. The method I am using to do this is based on the following concepts:
A background image with a height of 64 points will fill both the
UINavigationBar and the UIStatusBar.
A background image with a height of 44 points will fill the UINavigationBar and leave the
UIStatusBar black.
You can add an subview to the top of the current navigationController's view and it will sit underneath the UIStatusBar.
So, first, you need to create two images with your desired UINavigationBar look:
A 640x128px image to cover navigation bar and status bar (ImageA)
And a 640x88px image to cover the navigation bar but leave the status bar black (ImageB).
In the application:didFinishLaunchingWithOptions: method, set the background of your UINavigationBar with ImageA with [[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:#"ImageA.png"] forBarMetrics:UIBarMetricsDefault];
When the side menu starts to open, you are going to want switch the UINavigationBar so it uses ImageB and create a view which you will add underneath the UIStatusBar. Here is some sample code for doing just that:
// Add a property for your "temporary status bar" view
#property (nonatomic, strong) UIView *temporaryStatusBar;
And in the code where the side menu starts to open:
// Create a temporary status bar overlay
self.temporaryStatusBar = [[UIView alloc] initWithFrame:[[UIApplication sharedApplication] statusBarFrame]];
self.temporaryStatusBar.backgroundColor = [UIColor yourColor];
[self.navigationController.view addSubview:self.temporaryStatusBar];
// Update both the current display of the navigationBar and the default appearance values
[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:#"imageB.png"] forBarMetrics:UIBarMetricsDefault];
[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:#"imageB.png"] forBarMetrics:UIBarMetricsDefault];
[self.navigationController.navigationBar setNeedsDisplay];
As the side menu animates open, or as the user pans the menu, all you need to do then is adjust the alpha level of the UIStatusBar overlay. When the side menu is fully open, the UINavigationBar should have ImageB as its background image and the UIStatusBar overlay should have an alpha of 0. When the side menu closes, you'll want to replace the UINavigationBar background with ImageA and remove the UIStatusBar overlay.
Let me know if this works for you!
You can use this awesome slide menu library
https://github.com/arturdev/AMSlideMenu
In this demo project you can see how to do that by writing 4 lines of code.
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
// Setting navigation's bar tint color
self.navigationController.navigationBar.barTintColor = [UIColor colorWithHex:#"#365491" alpha:1];
// Making view with same color that navigation bar
UIView *statusBarView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, 20)];
statusBarView.backgroundColor = [UIColor colorWithHex:#"#365491" alpha:1];
// Replace status bar view with created view and do magic :)
[[self mainSlideMenu] fixStatusBarWithView:statusBarView];
}
I want to make an app, which uses a navigationbar, but just for showing the title and some buttons (it is using a vie container). I want the navigation bar to "fusion" with the status bar, like this
But when I use a generic view controller and drag a navigation bar in it just looks as this:
Is there a way to do this?
I've found a solution for this specific problem. Set the navigation bar's translucent property to NO:
self.navigationController.navigationBar.translucent = NO;
UINavigationController will alter the height of its UINavigationBar to either 44 points or 64 points, depending on a rather strange and undocumented set of constraints. If the UINavigationController detects that the top of its view’s frame is visually contiguous with its UIWindow’s top, then it draws its navigation bar with a height of 64 points. If its view’s top is not contiguous with the UIWindow’s top (even if off by only one point), then it draws its navigation bar in the “traditional” way with a height of 44 points. This logic is performed by UINavigationController even if it is several children down inside the view controller hierarchy of your application. There is no way to prevent this behavior.
Full explanation here.
Not sure whether this will fix your issue, but you can try what i did.
I had the same problem in viewcontroller's right side menu "Simulated Metics" > Top Bar > "Opaque Navigation Bar"
viewcontroller.h file in create iboutlet of the navigation bar
#property (weak, nonatomic) IBOutlet UINavigationBar *navBar;
You can do as followings in viewDidLoad
UIView *addStatusBar = [[UIView alloc] init];
//draw status bar with width of device
addStatusBar.frame = CGRectMake(0, -20, self.view.frame.size.width, 20);
//set the background colour to status bar
addStatusBar.backgroundColor = [UIColor colorWithRed:24.0/255. green:24/255. blue:24.0/255. alpha:1];
[self.view addSubview:addStatusBar];
// add your status bar to your UINavigationBar *navBar which declared in your file .h
[self.navBar addSubview:addStatusBar];
navigationController.navigationBar.clipsToBounds = YES;
In order for UINavigationBar to extend its background under status bar its clipsToBounds must be set to NO (which is the default). Make sure you do not mock around with it.
Solution simple as:-
navigationController.navigationBar.clipsToBounds = NO;
Swift 5
navigationController?.navigationBar.isTranslucent = false
I want have a custom navigationbar .But there is a white space between navigationbar and status bar.The code is below:
#implementation UINavigationBar (CustomImage)
- (void)drawRect:(CGRect)rect {
UIImage *image = [UIImage imageNamed: #"NavigationBar.png"];
[image drawInRect:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
}
#end
Thank you for your help!
Do not override methods in categories.
Do NOT override metods in categories.
DO NOT OVERRIDE METHODS IN CATEGORIES.
Now that that is out of the way.
This just means that your image has the white line in it, or your navigation bar is placed incorrectly.
The problem may not be necessarily in navigation bar. The frame of the navigation controller or view controller may not have been set properly.
There are chances that the navigation controller or view controller leaves space for status bar or navigation bar without having any idea about whether they are already there or not.
Make sure you are creating the navigation controller or view controller with proper frames.
In order to customize the aspect of the navigationBar of my UINavigationController, I've been told to subclass the UINavigationBar class.
I need to change the height of the bar, placing an image instead of the title.. etc. I can't do it just using UINavigationBar properties.
Now, my issue is, how to assign to the UINavigationController, my CustomNavigationBar instance ? I can't use UINavigationController.navigationBar because it is read-only.
The only way seems to load a xib, but subclassing UINavigationController is not reccomended by Apple, so I'm a bit confused.
Depending exactly on how custom you want the nav bar, the following may help you:
1) An image in the bar, replacing the title text. (self is a UIViewController)
UIImageView *titleImg = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"image.png"]];
self.navigationItem.titleView = titleImg;
[titleImg release];
2) A totally custom nav bar
Subview UIView (CORRECTION: UINavigationController) with a nib, using (for example, of iPhone portrait orientation) a imageview as the background (could have a gradient) and then custom buttons on the left and right side, all hooked up to your relevant responder functions. As long as you add this nav bar view as a subview to each view controller etc each time a new one is pushed to the stack, you would have overriden Apple's standard nav bar. (remember to set theirs to hidden in the app delegate)
Edit:
NavigationBar.h
#interface NavigationBar: UIViewController
{
IBOutlet UIImageView* navigationBarImgView; // remember to set these 4 IBOutlets as properties with (nonatomic, retain) and synthesize them.
IBOutlet UILabel* controllerHeader;
IBOutlet UIButton* rightButton;
IBOutlet UIButton* leftButton;
eController controller;
int screenWidth;
}
NavigationBar.m
-(id)initNavigationBar: (NSString*)name bundle:(NSBundle*)bundle: (eController)controllerName: (int)inScreenWidth
{
[super initWithNibName:name bundle:bundle];
controller = controllerName;
screenWidth = isScreenWidth;
return self;
}
You can see my init here only passes in a few things - an enum which was defined in my app delegate which contains the names of all possible view controllers. We interpret this enum in my custom Navigation Bar class and switch between all the possible controllers, and then setup their buttons and titles and the actions that get fired off using that information. The screen width is important - although you may not need this if you create the bar in IB, set the size of it to fill up the allocated space for both orientations.
Keep me posted :)