I want to create a fixed header that doesn't scroll with tableViewCells, or other content that I have. The header should stay in place fixed, just like in most iOS apps.
Here is the image of the issue I'm facing:
I tried embedding it in a NavigationController & a TabViewController. That didn't work.
I also tried adding a scroll-view.
I referred to this link but it's outdated and didn't help: how iphone facebook app make the navigation bar fixed
Thanks.
I'd really recommend fooling around with the Navigation controller until you figure it out, it's really the best method for this. If you've embedded it, I'd check out your view with the Attributes inspector, to make sure everything needed is enabled.
HOWEVER, there is another way I've used before. Create a new ViewController, and create two views inside of it. One will be your FakeNavBar, and the other will be a container/TableView that'll hold your data.
Once you've added both these to your new VC, just set them up normally, and bingo!
One tip for this, is that NavBar is typically 64 points high, so your fake bar will be something like this:
fakeNavBar.frame = CGRectMake(0, 0, theWidth, 64)
tableView.frame = CGRectMake(0, 64, theWidth, theHeight-64)
And your view hierarchy will look like this:
Related
Built-in Photo application fades in/out navigationBar when you tap on an image . This way Photo app allows to see it full screen.
How does it do this (fade efect)?
As I understand navigationController?.navigationBar.alpha doesn't work anymore (so you can't animate it this way).
Sharing all my finding.
Complain mode on
Frankly, I feel half pissed/like a dummy that I had to fight a good day to implement simple thing existing in Apple app.
Complain mode off
First of all here is some context. I am working with navigationBar which are provided by navigationController (vs just standalone bars which are manually dropped in your view)
There are several approaches which I found. I will mention all of them (even if I had no success using them)
1) Animate change of alpha of navigationBar
UIView.animateWithDuration(0.1, animations: {
navigationController?.navigationBar.alpha = 0
}, completion: nil)
#rmaddy mention here that it works for him. However, I believe he has a standalone bar (vs a bar managed by navigationController).
I used a tool Reveal to check UI hierarchy and found couple of things.
- There is a navigationBar which is hidden (and navigationController?.navigationBar is referencing it). So you can change alpha to your hearts joy, but these changes won't be visible.
There is however another navigationBar . I assume it's referenced in some private members of navigationController (let's call it private navigationBar). It's visible and that's what is displayed at the top of your view.
2) Use setNavigationBarHidden:animated:
This is a standard way to hide/show navigation bar. It's animated different way (it slides/up and down). However, if it's ok for you, just go with this is, because it's simple and clean.
navigationController?.setNavigationBarHidden(true, animated: true)
Additionally you can wrap it in UIView.beginAnimations, UIView.commitAnimations to animate it together with some other stuff (to make it smoother)
3) Animate change of alpha of private navigation bar.
This worked for me:
let privateNavigationBar = self.superview?.superview?.superview?.superview?.superview?.superview?.subviews[1]
UIView.animateWithDuration(0.1, animations: {
privateNavigationBar.alpha = 0
}, completion: nil)
I am going way up through the hierarchy to get a view which contains private navigationBar (which is second subview for that view).
However, this approach has multiple downsides:
I believe # of superviews? depends on your app hierarchy (vs you are using split view and so on). I think you can generalize or may be you just walk the whole hierarchy to find non hidden UINavigationBar to solve this.
I have a feeling that Apple may frown at this (your app be not accepted to AppStore)
4) Make navigationBar transparent and set background image to be transparent and change alpha channel on it.
I can't find where I read about this idea. There was couple of mentioning.
There is Apple example app which shows how to customize NavigationBar, including making it transparent.
It's interesting that this example app works for me (the navigation bar is transparent in it). However, when I tried this code in my app it didn't work (I still didn't figured out what is going on with this). As usual there are bunch of variables (may be something in Info.plist, also they subclass NavigationController, also may be something in view hierarchy)
5) Adding standalone navigationBar
You can hide a bar provided by navigationController. Add your own to the UIView, wire it to #IBOutlet and use alpha animation on it (most likely that's what #rmaddy was referring too).
I checked and this is work.
This approach is used in this tutorial.
However, it has a downside:
I believe it won't handle well rotation, increase of statusbar height while call or GPS
Each time when I see a code like this (written in the article) I know that there will be problems with resizing: CGRectMake(0, 0, CGRectGetWidth(self.view.bounds), 64.0)
You can potentially replace it with constrains. I went this route, but stumble upon some issues.
6) Other methods
I saw two more methods. I don't know whether they will work or what will be downsides:
One of them in this question: How to hide/show status bar and navigation bar by fading in/out at the same time like the Photos app in iOS 7?
And this answer: https://stackoverflow.com/a/18063898/422080
In my iOS app I am using SWRevealViewController to add menu functionality. It works great, however my client wants to make the menu cover the current view controller, not move it to the right.
I mean something like this:
before:
after:
The author of this library told me to implement the following, where I can get current offset of the menu and move the current view controller by that offset by doing something like that:
let rvrw = self.revealViewController().rearViewRevealWidth
var bounds = navigationController!.view.bounds
bounds.origin.x = rvrw
navigationController!.view.bounds = bounds
The problem is that the menu is behind it. I would like to know how I can do that in this library or if there is another library with similar implementation and that functionality as well.
I have found tons of libraries, but all of them are pushing the controller not covering it. I have found one or two which do it way I need, but they missed some features (like being under navigation bar), were outdated or buggy.
SWRevealViewController offers some customization options
documented in the SWRevealViewController.h header file.
It seems as though the frontView is the part with "WatchKit" in your example and the rearView is the menu.
In that case, you might be able to use setFrontViewPosition with the value FrontViewPositionLeftSide, which gives the frontView
// Left position, front view is presented left-offseted by rightViewRevealWidth
If that does not work, you could also try FrontViewPositionLeftSideMost, which gives the position
// Left most position, front view is presented left-offseted by rightViewRevealWidth+rigthViewRevealOverdraw
I did not have the setup at hand to try this.
I know this has been asked before, but none of these solutions work, and that's the reason of my posting. Please do not close before considering my case.
My plist already has UIViewControllerBasedStatusBarAppearance = false.
I have already tried applying deltas, but to no result.
Changing the top level view frame in ViewWillAppear (like self.view.frame) did not succeed.
I thought of increasing the view height (storyboard attribute inspector), in combination with deltas, but my top level view X, Y are disabled in storyboard attribute inspector.
My main view doesn't have any children views because I load them into main view either dynamically or load them from XIBs which are again shared by more than view controllers. These XIBs provide layout for both Portrait and Landscape. I don't know what approach is ideal for this kind of configuration, but I would like it better if solution lies along these lines.
This approach worked partially, but gave me inconsistent results.
What makes the solution tricky is the fact that I have to support all 4 orientations - this is something I handle in code via didRotate and willRotate delegates for my other views, but failing to do it for statusbar.
Please help...
Could this link be of any help?
You might have to use the new setEdgesForExtendedLayout: method to get this working consistently?
Also, have a look at these official docs if you haven't already done so.
I ended up writing my own function to shift my all subviews (remember, not top level views whose frame is fixated by IB).
It didn't spoil my work but imagine if this was the case for a very big project with so many screens, the limitations would have made it a nightmare.
I'm currently working on an iOS app that is pretty much supposed look and work like an already existing android app.
As a part of that, I'd like to make the top navigation look the same, but since iOs devices do not provide a hardware or software integrated back button, I'd also like to keep the back button navigation that's common to iOs apps.
I've tried numerous attempts to achieve it, but I'll stick with the latest I'm working on since it looks the most promising. I've started to work on a custom UINavigationBar class that overrides the initWithCoder: and layoutSubviews: methods. The result is as follows:
As you can see, the back button now overlaps the application icon. What I'm looking for is a way to make the button and the text to scale into the space right of the application icon. I've tried to handle this in layoutSubviews: but the superclass logic appears to be rather complex, I was not able to reproduce it's functionality (in particular it seems to be working with some private variables I don't have access to).
I also tried manipulating self.frame before calling [super layoutSubviews] but apart from endless loops I was not able to achieve anything in that direction.
I'd be happy if anyone could point me into the right direction.
If I understand your problem correctly, I think you could do this by adding a custom titleView to the UINavigationItem, and have an image view (on the left side for the icon) and a label (for the title) as subviews. This would replace the default title.
I want my app to have a large header like the living social app:
I tried doing this by hiding the navbar on the main delegate and just making a UIImageView to hold the pic, but the transition to the detail view looked funky. How can I get a custom image at the top of my tableview? Maybe I did something funky and need to try again?
YournavigationController.navigationBar.frame = CGRectMake(0, 0, 320, 100);
And on top of that, this site has a good tutorial on how to add a background image to the UINavigationBar, these two things together should give you just what you're looking for!
http://sebastiancelis.com/2009/12/21/adding-background-image-uinavigationbar/
Should to the trick!