I found a bunch of links on SO that show how to set the navigation bar to an image in Objective-C, but none in swift. The one I did find, didn't help: UINavigationBar setBackgroundImage in AppDelegate with Swift
In the didFinishLaunchingWithOptions in the AppDelegate I'm attempting to do this with swift with no avail:
let headerImage = UIImage(named: "header.png")
UINavigationBar.appearance().setBackgroundImage(headerImage, forBarMetrics:.Default)
UIApplication.sharedApplication().statusBarStyle = UIStatusBarStyle.Default
var navigationVC:UINavigationController = UINavigationController(rootViewController: tableVC)
let frame = UIScreen.mainScreen().bounds
window = UIWindow(frame: frame)
window!.rootViewController = navigationVC
window!.makeKeyAndVisible()
How can I set the navigation bar to an image in swift?
Thanks in advance.
You are using a retina image but Xcode does not know that because it does not have a file name that contains #2x.
So if you rename your image to header#2x.png it works.
You might want to consider using an Asset Catalog for your images to avoid things like this.
Related
Is it possible to use the UISearchController without the SearchBar being displayed in the Navigation Controller? I basically want the SearchBar to stay on the screen and display the TableView beneath it:
What I was trying to do is this:
I've created a UITableViewController on the storyboard and linked it to the custom NPTableViewController class. Then I did this:
let resultsTable = storyboard!.instantiateViewController(withIdentifier: "LocationSearch") as! NPTableViewController
searchController = UISearchController(searchResultsController: resultsTable)
searchController?.searchResultsUpdater = resultsTable
let searchBar = searchController!.searchBar
searchBar.sizeToFit()
searchBar.placeholder = "Search for places"
searchBar.frame.origin.y = 100.0
self.view.addSubview(searchBar)
Now when I run it, the searchBar is displayed but when I click on it the background dims, the searchBar disappears my resultsTable is also not displayed.
The solution I came up with is actually very simple. Instead of using UISearchController, I used a normal UISeachBar and UITableView. Since UISearchController doesn't do so much to help you, the work is pretty much the same if I kind of build my own SearchController.
So, I'm trying to make this:
i tried using UIView in back of Status bar and set the color to orange, but when running, The UIView displayed right under the status bar, so it's still White
i'm trying many solution in the internet but none of them work. Yes it works but when i move to other view controller and back again, The color dissapeared. What should I do? i'm using swift
UIApplication.shared.statusBarStyle = .lightContent
UINavigationBar.appearance().clipsToBounds = true
let statusBar: UIView = UIApplication.shared.value(forKey: "statusBar") as! UIView
statusBar.backgroundColor = UIColor.orange
Try using this code in your appDelegate's method application didFinishLaunchingWithOptions
I'm implementing a drawer layout design in an app.
But my app starts with a small screen with an animated logo (simple HTML5 animation), then a login screen (g+ and Facebook), then the main screen where I'm implementing the MMDrawerController.
The question is in my AppDelegate:
window?.rootViewController = centerContainer
window?.makeKeyAndVisible()
So the app start in this screen. Is it possible to not make rootviewcontroller the center container and still using MMDrawerController?
I need to add MMDrawerController to my third viewcontroller in my app
But, in order to MMDrawerController to work, it requires to be the rootViewController
I allready tried to add to my first ViewController an Empty MMDrawerLayout but, then, the third controller no longer works
//global var
var centerContainer : MMDrawerController?
// then the appdelegate
let rootViewController = self.window!.rootViewController
let mainStoryBoard:UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let centerViewController = mainStoryBoard.instantiateViewControllerWithIdentifier("GaleriaPeliculas")
let leftViewController = mainStoryBoard.instantiateViewControllerWithIdentifier("LeftSideViewController")
let leftSideNav = UINavigationController(rootViewController: leftViewController)
let centerSideNav = UINavigationController(rootViewController: centerViewController)
//And here is the problem,
window?.rootViewController = centerContainer //how can it work without this line??
window?.makeKeyAndVisible()
Is it possible to not make rootviewcontroller the center container and still using MMDrawerController?
No. You need to keep MMDrawerController as the rootViewController if you still want to make use of the left/right drawers. It's no different than a UITabBarController in the sense that it contains multiple view controllers to be conditionally displayed.
So I have been out of the iOS coding world for a bit and I am going through Swift at the moment.
In Objective-C I was able to change an image on the fly, but to do so I had to set the image delegate. The other reason I set the delegate was so I could hide the UIImageView
In Swift I seem to have an issue with this.
With the playground I can do this fine:
let responseImageView:UIImageView!
responseImageView.hidden = true
But in the project this does not work.
Can someone help me out here?
In my project I have this code :
#IBOutle var responseImageView: UIImageView!
//Inside a function I have this:
let smile = "smile.png"
imageName = UIImage(named: smile)!
responseImageView = UIImageView(image: imageName)
That code does not work.
And I can't hide the image by doing this:
responseImageView.hidden = true
If you created the actual UIImageView in the Storyboard or Interface Builder (and connected the IBOutlet correctly - it's always a good idea to double check this if something isn't working as expected!) you should not try to instantiate it again in code just to change the image. Instead, change the image by accessing the UIImageView's .image property, like so:
let smile = "smile.png"
let image = UIImage(named: smile)
responseImageView.image = image
Edit:
Just to clarify: by "instantiate" I specifically mean this line from you project code:
responseImageView = UIImageView(image: imageName)
Doing this in your function will break the connection you've set up in the storyboard. If you put a break point after that line or a println("\(responseImageView.superview)") you'll see that your instance of responseImageView is now no longer attached to a superview (explaining why you can change it's image or hide or unhide it all you want - you'll never see any change in the app).
How do I change the colour of the top bar of the customisation page of the more view controller. Please see the linked image. Sorry I can't post image here because of my low reputation.
Screenshot Image
Edited with more info:
I have managed to change the background color using the following code. But cant change the color of the top bar.
func tabBarController(tabBarController: UITabBarController, willBeginCustomizingViewControllers viewControllers: [AnyObject]) {
var editView : UIView = tabBarController.view.subviews[1] as! UIView
editView.backgroundColor = UIColor.blackColor()
}
Basically 2 Ways you can achieve this if you are using Global Unique colour in the app for All navigation bar
Use this Solution on App Launch:
UINavigationBar.appearance().barTintColor = UIColor.redColor()
Or if you want to change the Color of More navigationcontroller only then
Use this Solution by getting the Tabbar Reference :
self.tabBarController?.moreNavigationController.navigationBar.barTintColor = UIColor.greenColor()
You can use second solution in the First viewcontroller of the Tab, because that contains your tabbar reference