change navigationbar on only one view - iphone

I have set a custom navigationbar in my appdelegate. You can see the code over here.
UIImage *image = [UIImage imageNamed:#"navbar.png"];
[[UINavigationBar appearance] setBackgroundImage:image forBarMetrics:UIBarMetricsDefault];
But now I'm working with the eventkit framework. What I want is when I go to eventdetails, that I get the standard navbar layout.So without the image.
EKEventViewController *vc = [[EKEventViewController alloc] init];
[vc.navigationController.navigationBar setBackgroundImage:nil forBarMetrics:UIBarMetricsDefault];
vc.event = [dataSource eventAtIndexPath:indexPath];
vc.allowsEditing = YES;
[calendar.navigationController pushViewController:vc animated:YES];
I've tried the following but it is not working.
Any help?

you can do one thing, take the screenshot of one viewController with default navigation bar , just crop only navigation bar area i.e. make image of 320 x 44 size.
when you want again your by default navigation bar , that time use this cropped image as background of navigation bar ,add following code
UIImage *image = [UIImage imageNamed:#"defaultNavbar.png"];
[[UINavigationBar appearance] setBackgroundImage:image forBarMetrics:UIBarMetricsDefault];
again when you navigate to another viewController having custom Navimage then again draw nav image by help of your custom image code i.e.
UIImage *image = [UIImage imageNamed:#"navbar.png"];
[[UINavigationBar appearance] setBackgroundImage:image forBarMetrics:UIBarMetricsDefault];

Related

UITabBar tint in iOS 7

How can i specify the tint of images when a tab is selected and unselected?
I have tried this but it doesnt work:
[[UITabBar appearance] setTintColor:[UIColor redColor]];
[[UITabBar appearance] setSelectedImageTintColor:[UIColor greenColor]];
This makes the selected image tint red(not green) and unselected tint gray (not red).
You can set the tint color for selected and unselected tab bar buttons like this:
[[UIView appearanceWhenContainedIn:[UITabBar class], nil] setTintColor:[UIColor redColor]];
[[UITabBar appearance] setSelectedImageTintColor:[UIColor greenColor]];
The first line sets the unselected color - red in this example - by setting the UIView's tintColor when it's contained in a tab bar. Note that this only sets the unselected image's tint color - it doesn't change the color of the text below it.
The second line sets the tab bar's selected image tint color to green.
Are you using the template-version of your images?
Instead of setting your images with [UIImage imageNamed: #"MyImage"], set them with [[UIImage imageNamed: #"MyImage"] imageWithRenderingMode: UIImageRenderingModeAlwaysTemplate].
This setup along with your code should solve this issue.
You have to use the new Image rendering modes introduced in iOS 7 (UIImageRenderingModeAlwaysOriginal and UIImageRenderingModeAlwaysTemplate )see my answer to a similar question:
Hope this helps
if you do not have many viewcontrollers. Here is my way to do it.
In your delegate method just place your tabbar bg Image. And set the UIImageView
Create UITabbar intance in AppDelegate.h
#property (nonatomic,retain) UITabBar *tabbar;
And
#synthesize tabbar;
UITabBarController *tabBarController =
(UITabBarController *)self.window.rootViewController;
tabbar = [tabBarController tabBar];
[tabbar setBackgroundImage:[UIImage imageNamed:#"tabbarBg.png"]];
NSArray *tabImageArray = [NSArray arrayWithObjects:
[UIImage imageNamed:#"tab1Hover.png"],
[UIImage imageNamed:#"tab2.png"],
[UIImage imageNamed:#"tab3.png"],
[UIImage imageNamed:#"tab4.png"],
[UIImage imageNamed:#"tab5.png"],
nil];
for (int i = 0; i<5; i++) {
UIImageView *image = [[UIImageView alloc]initWithFrame:CGRectMake(20+i*60+i*3.5, 10, 25, 21)];
[image setContentMode:UIViewContentModeScaleAspectFit];
[image setImage:[tabImageArray objectAtIndex:i]];
[image setTag:10+i];
[tabbar addSubview:image];
}
Then every ViewController in tabbar add
-(void)viewWillAppear:(BOOL)animated
delegate method and in this method. You can change the Imageviews as shown below.
-(void)viewWillAppear:(BOOL)animated{
AppDelegate *appDelegate = (AppDelegate*)[[UIApplication sharedApplication] delegate];
UITabBarController *tabBarController = (UITabBarController *)appDelegate.window.rootViewController;
NSArray *tabImageArray = [NSArray arrayWithObjects:
[UIImage imageNamed:#"tab1Hover.png"],
[UIImage imageNamed:#"tab2.png"],
[UIImage imageNamed:#"tab3.png"],
[UIImage imageNamed:#"tab4.png"],
[UIImage imageNamed:#"tab5.png"],
nil];
for (int i = 0; i<5; i++) {
UIImageView *image = (UIImageView*)[tabbar viewWithTag:10+i];
[image setImage:[tabImageArray objectAtIndex:i]];
}
}
So, just costumize tabImageArray in every View controller. Then you can use it.
I works on iOS 7 as well.

Make image fit UINavigationBar bar

I got this image that I want to use in my navigation controller:
I'm setting it like this(following advice from this question):
UINavigationBar *theBar = self.navigationController.navigationBar;
if ( [theBar respondsToSelector:#selector(setBackgroundImage:forBarMetrics:)] ) {
UIImage *image = [UIImage imageNamed:#"cabecalho.jpg"];
[theBar setBackgroundImage:image forBarMetrics:UIBarMetricsDefault];
}
But when I run my app, I get this:
What do I do so my image can fit the navigation controller?
Thank you.
Try with following code
[self.navigationBar setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"myImage.png"]]];
Refer How to add background image on iphone Navigation bar? this question that may be helpful for you.
I found the solution following the example of this question.
When I create my UINavigationController, I do this:
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:viewLista];
if ([nav.navigationBar respondsToSelector:#selector(setBackgroundImage:forBarMetrics:)] ) {
UIImage *image = [UIImage imageNamed:#"cabecalho.png"];
[nav.navigationBar setBackgroundImage:image forBarMetrics:UIBarMetricsDefault];
}

Navigation bar image black

In my application i add custom navigation image while adding the remaining part of the image shows black in color, i used following code,
UIImage *image = [UIImage imageNamed: #"navbar.png"];
[self.navigationController.navigationBar setBackgroundImage:image forBarMetrics:UIBarStyleDefault];
i want to show the back ground color in the in the black color part.what should change in code?
Please Try Following may be it works fine.
UINavigationBar *navBar = [[self navigationController] navigationBar];
UIImage *backgroundImage = [UIImage imageNamed:#"navbar.png"];
[navBar setBackgroundImage:backgroundImage forBarMetrics:UIBarMetricsDefault];
Edited
[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:#"navbar.png"] forBarMetrics:UIBarMetricsDefault];
self.navigationController.navigationBar.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"navbar.png"]];
I'm using very useful library (class SCNavigationBar) for styling navigaitonBar, download it here
It supports all orientations, it works with no problem in my many apps.

Adding image to navigation bar

I'd like an image to take up all of a navigation bar. This is the navigation that comes with a navigation based app. It appears on the RootViewController with the accompanying UITableView. I've seen some examples of how this might work.
Set navigation bar title:
UIImage *image = [UIImage imageNamed:#"TableviewCellLightBlue.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
[self.navigationController.navigationBar.topItem setTitleView:imageView];
The problem there is it only covers the title rather than the entire navigation bar.
There is also this thread: http://discussions.apple.com/message.jspa?messageID=9254241#9254241. Towards the end, the solution looks to use a tab bar, which I'm not using. It is that complicated to set a navigation bar background? Is there some other simpler technique?
I'd like to have a background for the navigation and still be able to use title text.
In your case, this solution found in another answer would work well.
With the "CustomImage" category added to UINavigationBar,
you can then just call:
UINavigationBar *navBar = self.navigationController.navigationBar;
UIImage *image = [UIImage imageNamed:#"yourNavBarBackground.png"];
[navBar setBackgroundImage:image];
This code should go in the method
- (void)viewWillAppear:(BOOL)animated
of the view controller where you want to have the custom image.
And, in that case you should better call:
[navBar clearBackgroundImage]; // Clear any previously added background image
before setBackgroundImage (otherwise it will be added multiple times...)
its changed for ios6, to make it work in ios 6 use:
UINavigationBar *navBar = self.navigationController.navigationBar;
UIImage *image = [UIImage imageNamed:#"image.png"];
[navBar setBackgroundImage:image forBarMetrics:UIBarMetricsDefault];
UIImage *image = [UIImage imageNamed:#"YourImage.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
[self.navigationController.navigationBar addSubview:imageView];
There is actually a much easier way to add a background image to any UIView class or subclass. It requires no class categorization or extension (subclassing), and you can do this on an "as needed" basis. For example, to add a background image to a view controller's navigation bar, do the following:
self.navigationController.navigationBar.layer.contents = (id)[UIImage
imageNamed:#"background.png"].CGImage;
You'll need to remember to add the Quartz Core framework to your project and add #import <QuartzCore/QuartzCore.h> wherever you need to do this. This is a much cleaner, simpler way to alter the drawing layer of anything that inherits from UIView. Of course, if you want to accomplish a similar effect for all navigation bars or tab bars, then subclassing makes sense.
UIImage *logo = [UIImage imageNamed:#"my_logo"];
UIImageView *logoView = [[UIImageView alloc]initWithImage:logo];
logoView.frame = CGRectMake(0, 0, 320, 37);
UINavigationController *searchNavCtrl = [[UINavigationController alloc] initWithRootViewController:searchViewController];
searchNavCtrl.navigationBar.barStyle = UIBarStyleBlack;
//searchNavCtrl.navigationItem.titleView = logoView;
//[searchNavCtrl.navigationController.navigationBar.topItem setTitleView:logoView];
[searchNavCtrl.navigationBar addSubview:logoView];
[logoView release];
Just add this line .
[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:#"NavBar.png"] forBarMetrics:UIBarMetricsDefault];
Bam! One line and done.
I used cmp's solution and added some logic to remove it as I only wanted a custom background image on home screen within on view appear.
HomeViewController.m
UIImage *image = [UIImage imageNamed:#"HomeTitleBG.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
imageView.tag = 10;
UIImageView *testImgView = (UIImageView *)[self.navigationController.navigationBar viewWithTag:10];
if ( testImgView != nil )
{
NSLog(#"%s yes there is a bg image so remove it then add it so it doesn't double it", __FUNCTION__);
[testImgView removeFromSuperview];
} else {
NSLog(#"%s no there isn't a bg image so add it ", __FUNCTION__);
}
[self.navigationController.navigationBar addSubview:imageView];
[imageView release];
I also tried to use the suggested clearBackgroundImage method but couldn't get it to work so I gave the image a tag and then removed it in the other viewcontrollers on view will appear.
OtherViewController.m
UIImageView *testImgView = (UIImageView *)[self.navigationController.navigationBar viewWithTag:10];
if ( testImgView != nil )
{
NSLog(#"%s yes there is a bg image so remove it", __FUNCTION__);
[testImgView removeFromSuperview];
}
`
just go the view controller and paste in super viewdidload
and replace your image in mainlogo and then set the navigation title in set your image logo
- (void)viewDidLoad
{
[super viewDidLoad];
//set your image frame
UIImageView *image=[[UIImageView alloc]initWithFrame:CGRectMake(0,0,70,45)] ;
//set your image logo replace to the main-logo
[image setImage:[UIImage imageNamed:#"main-logo"]];
[self.navigationController.navigationBar.topItem setTitleView:image];
}
Add code in appdelegate did finish with launching method
#define UIColorFromRGB(rgbValue) [UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 green:((float)((rgbValue & 0xFF00) >> 8))/255.0 blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]
if([[[UIDevice currentDevice] systemVersion] floatValue] < 7.0)
{
[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:#"navigation_or.png"] forBarMetrics:UIBarMetricsDefault];
[[UINavigationBar appearance] setTitleVerticalPositionAdjustment:0.0 forBarMetrics:UIBarMetricsDefault];
}
else
{
[[UINavigationBar appearance] setBarTintColor:UIColorFromRGB(0x067AB5)];
[[UINavigationBar appearance] setTintColor:[UIColor whiteColor]];
// Uncomment to assign a custom backgroung image
[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:#"navigation_or.png"] forBarMetrics:UIBarMetricsDefault];
// Uncomment to change the back indicator image
[[UINavigationBar appearance] setShadowImage:[[UIImage alloc] init]];
[[UINavigationBar appearance] setBackgroundColor:[UIColor whiteColor]];
[[UINavigationBar appearance] setBackIndicatorTransitionMaskImage:[UIImage imageNamed:#""]];
// Uncomment to change the font style of the title
NSShadow *shadow = [[NSShadow alloc] init];
shadow.shadowColor = [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.8];
shadow.shadowOffset = CGSizeMake(0, 0);
[[UINavigationBar appearance] setTitleTextAttributes: [NSDictionary dictionaryWithObjectsAndKeys:[UIColor colorWithRed:245.0/255.0 green:245.0/255.0 blue:245.0/255.0 alpha:1.0], NSForegroundColorAttributeName,shadow, NSShadowAttributeName,[UIFont fontWithName:#"HelveticaNeue-Bold" size:17], NSFontAttributeName, nil]];
[[UINavigationBar appearance] setTitleVerticalPositionAdjustment:0.0 forBarMetrics:UIBarMetricsDefault];
}

how to display an image in the navigation bar of an iPhone application?

how to display an image in the navigation bar of an iPhone application? (say, right after the title)
Here's how to have the image centered in the NavBar.
UIImage *image = [UIImage imageNamed: #"NavBarImage.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage: image];
self.navigationItem.titleView = imageView;
[imageView release];
This code is actually contained with the Apple source for the NavBar and can be found at the iPhone Developer Center at Apple.
The source shows you various ways to manipulate both the StatusBar & NavBar.
I haven't tested this but as UINavigationBar is a view you can add subViews to it.
UIImage* myImage = [UIImage imageNamed:#"Myimage.png"];
UIImageView* myImageView = [[UIImageView alloc] initWithImage:myImage];
myImageView.frame.origin.x = 30.0; // You will have to find suitable values for the origin
myImageView.frame.origin.y = 5.0;
[myTabbar addSubView:myImageView];
[myImageView release];
You can use things like the backItem property to calculate the position of your image view.
If you want the image at the right of the nav bar, you can define it as a custom button with no action when presed, like this
UIButton* fakeButton = (UIButton *) [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"yourimage.png"]];
UIBarButtonItem *fakeButtonItem = [[UIBarButtonItem alloc] initWithCustomView:fakeButton];
self.navigationItem.rightBarButtonItem = fakeButtonItem;
[fakeButtonItem release];
[fakeButton release];
Simply Place that code in - (void)viewWillAppear:(BOOL)animated; so it'll work fine
and add one image having size 320x40 named Top Bar
UIImage *image = [UIImage imageNamed: #"TopBar.png"];
[self.navigationController.navigationBar setBackgroundImage:image forBarMetrics:UIBarMetricsDefault];
the navigation bar has a property called title view - set this to the image you like. Since the titleView overwrites the title of the nav bar you have to include the desired title in the image file. Still set the title to what you want so it appears on the back button when you push a view Controller
I encountered the same problem.Found out the best solution
[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:#"background_image.png"] forBarMetrics:UIBarMetricsDefault];
Hope this would help....
Just write your own navigation bar. Therefore you have to disable the Navigation Bar fist:
Disable the top bar in the interface builder by selecting your Navigation Controller in
your Storyboard: Attributes Inspector -> Simulated Metrics -> Top Bar: select None
Afterwards you can add any HeaderView you like...
UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, sFrame.size.width, 100)];
UIColor *background = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:#"header_image.png"]];
self.headerView.backgroundColor = background;
// ...add buttons and labels
[self.view addSubview:headerView];