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
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.
I wonder which component is being used to create a selector option like the one used in iBooks where we can adjust the Font Size and also the Theme, but without moving to a new view controller.
In my application I would like to implement it giving 3 small options to the user to choose, but without moving the view controller being presented. Its a small square area with an arrow at the bottom or top side giving the impression where it's coming from. (Let me know if I am not clear with the explanation).
Does anybody know how to use it??
Thank you all in advance
ibooks is using UIView. In that UIView you can add any controls you like. You need to use delegate methods so that I can perform communication between two objects(send message to another object). You will be able to make you custom UIView as controls.
Is it better - better in the sense of not getting rejected from the Apple store - when trying to create a custom* UIToolbar to either:
Option A
Add the oversize middle button as a UIButton to the self.navigationController.view this is key as I'm adding a UIButton to the navigationController which seems to contradict the apple docs
Use UIToolbar appearance to implement the custom background
Option B
Create a UIToolbar and add it as a subview of the current ViewController in UINavigationController
Add the UIButton as a subview of the current ViewController in UINavigationController
Use UIToolBar's method setBackgroundImage to add the custom background
*Custom background, Oversized middle button
This is the shape of the toolbar:
Extra details: This app is for iOS 5.X or greater. It uses UINavigationController. Key challenge is that a section of the app hide/shows the navigationbar depending on the state of the app.
Option A means I don't have to workout where to place the UIToolBar, it's a challenge to work out where to place the UIToolbar because a) if I'm showing or hiding the navigationBar this shifts everything up/down vertically b) iPhone 5 with extra vertical space - I can't use autolayout as I'm support iOS 5 and I haven't really worked out how to use autoresizing masks. I'mu using hard coded "magic" numbers.
I wouldn't do either of those.
UIToolbar is nice when you want to do what it does, and it does allow some basic customization. But in this case you want a toolbar-like view that draws itself in a way that UIToolbar doesn't seem to allow for. You probably know exactly what items you want to appear in your "toolbar", and it's unlikely that you'll need to handle arbitrary assortments of UIBarItems.
So, instead of giving yourself a headache trying to force UIToolbar to do something that it was never designed for, just create a simple view containing your background image (part of which will be transparent). Place some image-based UIButtons in the view, and call it a day. It wouldn't be a bad idea to create a custom UIView subclass representing your toolbar so that all the setup is nicely packaged up in one place, and so that you can reuse the toolbar in multiple views if you need to.
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.
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.