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.
Related
I have quite a few labels and buttons on my view controller and I have an image and I have set it to the back in the layers part on the left. How ever when I make it bigger it seems to go to the front and block the images. I have tried multiple codes from other people who have the same problem, but it still doesn't work. I am using Xcode 8, Swift, iOS.
In interface builder you can change the order of what is in front or behind by changing the order of the views as they appear in the Document Outline...
The higher up the list they appear, the further towards the back they are.
What are the constraints/alternatives to place an image that stays on top of all iOS "layers" and windows. Think of it as a lock screen but that still allows you to interact with you phone, meaning browse, answer calls, etc. The image will be displayed in a transparent way (say 40%) and will be launched by an application.
Not really sure what you are asking for but if you are looking for a way to add some code once and it shows everywhere on each of your ViewController then there really is no way to do that.
What you can do is
Use UIToolBar
add buttons to that tool bar
Add that tool bar to each ViewController in storyboard (where you need them)
Create a global function / method that you can call in from any ViewController that has the button actions in it. That way you edit the code once in one place and use it every where.
If you don't like UIToolBar then
you can add your own UIImageView and add a transparent background to it
Add your buttons on the UIImageView. (You will have to add constraints)
then show that on every ViewController
If all this seems to much work then you can use existing controls HERE and see which one fits your needs.
This maybe a good one - FCVerticalMenu
I want to get the keyboard size without using NSNotification. When I press the plus button, it can replace the keyboard with a custom UIView like this:
Then the plus button is pressed and the view loaded:
How can I achieve this?
I already made same rookie mistake like you want to do here. The problem is you will write a lot only to realize you do not want to avoid standard flow provided you by iOS team. For example you will definitely have a bad time dealing with issue like this one (there is additional bar which is part of standard keyboard for Chinese locale):
I solved this by using other people's work from DAKeyboardControl project. You do not need to attach observer (or if you use DAKeyboardControl - block) directly to your bar with buttons, but to your controller and check what user is trying to do and animate this bar accordingly. In the sources you can see how to get keyboard's animation duration and timing function. It may sound more complicated than it indeed is, just give it a try.
I've been banging my head with this issue for the last two days. Googled a lot but wasn't able to find the answer yet, so I decided to request some help here. Let's see if I get any luck.
I'm coding a reusable control that consists of an UIView with a variable number of customized UIButtons. I implemented initWithFrame:, initWithCoder: and drawRect: where the buttons (which are built prior to drawing) are actually added to the view. Everything is done programmatically since the UIButton content should be supplied when using the control, so there's no XIB for this UIView.
This UIView, let's call it CustomizableBarButton is then used in an UIViewController, let's call it MyTestViewController with a view on it, let's call it customizableBarButtonView.
MyTestViewController's GUI was set on IB where an UIView was tied to customizableBarButtonView (the class was matching accordingly).
MyTestViewController's is a pretty standard class except for the viewWillAppear: that initializes the buttons and passes them to the CustomizableBarButton along with some other options.
The issue is that everything works perfectly...except for the first time!
I mean, when I run the app on the simulator (I haven't tried it on the iPhone yet but I strongly believe that it's not an hardware issue) the MyTestViewController shows the customizableBarButtonView background but not the buttons. Now when you click on the place where a button should be all the buttons suddenly appear!
I'm puzzled since the CustomizablebarButton drawRect: runs before the strange "click n'appear" effect and the buttons are actually added to the subview.
Another hint that my help: if you don't click on the buttons (so you still got no buttons yet) but rotate the device they will also appear as if by magic!
It is probably something very simple but I'm missing it and I'm going nuts...
Can someone lend a hand on this, please?
Thanks in advance!
You said you're adding the buttons in drawRect:. Don't do that. You need to add the buttons in your init methods.
The ABC (Australian Broadcasting Corporation) iView app for iPad, has great looking tab like setup within a rootViewController of a UISplitView.
The tabs named "Browse/Watch/Listen" are particularly interesting are they simulated or real tabs?
It's unlike any UITabBar I've seen around in iPad apps.
Does anyone know how something like that is possible?
The round rect button in custom mode will be transparent and any png image will maintain in transparencies.
3 or more buttons with transparent images would be the way to go. A different color for when they are selected and your all set. You could also make them look like they are overlapping with images that continue the button next to it.
With the iOS devices it is more about appearance and less about the underlying functionality.
This is a custom control, they made themselves from scratch.
Fortunately for you, you don't need to make it from scratch. :)
There's a lot of open source component that does just this, just like these ones.
Those tabs look and feel like 3 UIButtons. Notice how the UI highlight acts when touching the buttons, and the action is only triggered on touchUpInside.
The tab content is probably a UITableView which gets refreshed when switching tabs.