Is it possible to place a UIButton inside of a UIImage with the Apple Watch? It seems that I can only place objects beside each other rather then on top of them as I can with iOS
As far as I know you can not do that.
But what you can do is to create a button and set it's backgroundImage.
Hope that helps :)
Short answer, you can't really place items on top of each other with WatchKit, but you can use the background image of a group to do it:
Can I position interface elements on top of each other?
No, interface elements can’t be positioned on top of each other natively. However, there are workarounds. For example, you can use a WKInterfaceGroup and set its background image to something that represents the control you want to overlay. Inside the group you can then add the necessary labels, buttons and so on.
This comes from Ray Wenderlich's WatchKit FAQ, which is a pretty reliable source. I'll link to fully official sources if I find it.
The solution is, as stated above, to use a WKInterfaceGroup and set its background image to something that represents the control you want to overlay. Inside the group you can then add the necessary labels, buttons and so on.
Note that this question also is about laying elements on top of images.
Related
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 am updating my app to iOS 7 and wanted to improve the UI. I want to create a see through background like Control Center. So basically I have a button, which I would like to have a see through and "blurred" background like control center. Thanks!
There's nothing to stop you using a UIToolbar.
Create a UIView as a base view with clear background, add a UIToolbar anchored to it's edges so it fills the view and then add your other controls to your base view above the toolbar.
It'll look for example like this:
The blurring effect is not available as a public API. There are third party implementations available, such as FXBlurView, which I can recommend.
You shouldn't really be using a toolbar. It's called toolbar for a reason.
One way to go would be to take a snapshot image of your background and blur it (you can use UIImage+ImageEffects category included in Apple samples to achieve consistent effect).
You can then just crop the image to desired frame and use it as a background of your button.
Are you looking to have a 'dynamic' blur effect (like in Control Center)? It's still doable, but it makes things more complicated.
You can also create blur effects with GUPImage Framework here is a full tutorial about it iOS blur effect tutorial. The tutorial also explains why you shouldn't use toolbar for blur effect creation
I'm developing an app that calculates poker odds, and now I'm facing some problems with the card selector.
This is a mockup of what I want.
I've found two ways to accomplish this. The first one is to use an entire UIImageView and detect touches, calculate where the touch has been generated, and set the corresponding value.
The second one is to use a lot of UIButtons, but in this case I get problems with the shape of the buttons.
Of course I can use a regular UIPickerView and so on but I think that the one I've designed is better.
if you have a UIButton with a background image that is shaped irregular. then that is the only point that the button can be pressed.
Change the type to custom and put your slices into buttons.
This has been my experience anyhow.
My buttons have to have a .01 alpha background to increase their pad size and people can push the button.
Hope that helps :)
After googled a little i've found https://github.com/ole/OBShapedButton .
it does anything what i need
for an iPad application in ios5.0 and arc, I need to create a button that has an image covering the entire button, and needs to have another transparent image at the bottom half of this button image OR have the button text label covering the bottom half of this button image.
In posts on this site I've read that using button subclass to just change the appearance of the UiButton should not be done. However, if I don't subclass, can I add these transparent image/and shift the button label? if so, how?
In case I need to add properties to the button, what is the best way to go about it.
If subclassing is the only option, can you also pls give pointers on what are the methods that i must absolutely override and any other such memory/performance considerations that I must keep in mind
Pointers to Any tutorials or third party libraries would be most appreciated.. Thanks in advance for all your help
I don't agree on "subclassing UIButton is not good". That's exactly why inheritance and subclassing mechanisms exist. In all platforms, the framework provides a base foundation for general needs, and you do extend them in the case standard stuff does not satisfy your needs. And you do it by subclassing.
As long as you know what you do, and what you do works for you and solves your problem, you're fine.
When you subclass UIButton, depending on what you actually want to achieve, you may want to override init:, initWithRect:, layoutSubviews:, awakeFromNib: methods.
Inspecting some subclasses would also help:
https://github.com/ardalahmet/SSCheckBoxView
https://github.com/ardalahmet/CopyableCell
For UIButton, you can inspect this component. Source code may help a lot.
The default iOS UI is nice but if I wanted to use images for buttons instead how would I do that - is it OpenGL?
Make the button a "custom button" type in interface builder. Then set the background image to be whatever you want the background to be.
Unfortunately the default button style is a little boring. You'll need to find or make a button with an image editor.
UIButton has a lot of support for custom buttons. In the nib (or storyboard or whatever), just click on the button and set its "Type" to "Custom" in the attribute inspector on the right side of the screen. Then, just below that, set the State Config to the sate you'd like (default, selected, etc) to customize, and set Image attribute to the image you'd like.
That image must be part of the project first before it will show up in the Image attribute (or in the app). You can add the image to the project simply by dragging it into the file navigator on the left side of the screen.
You can use images for buttons using a few simple lines of code:
// code to set image for button at normal state
[myButton setImage:[UIImage imageNamed:#"buttonImage.png"]
forState: UIControlStateNormal];
You can also use Xcode to change the type to "Custom" then you can set images for each button "state."
You can read more about UIButton states here
You can simply use PNG files that you create yourself. The UIButton class allows you to use custom images for all the different states of the application.
You don't really need to do custom rendering yourself, but if you really want, you can use UIKit to draw the images yourself in code (no OpenGL involved): http://developer.apple.com/library/ios/#documentation/2ddrawing/conceptual/drawingprintingios/graphicsdrawingoverview/graphicsdrawingoverview.html
You can do it by setting image or backgroundImage properties of a UIButton.
If you want your button to look nice when the size changes, you can use stretchableImageWithLeftCapWidth:topCapHeight: method of UIImage, with an appropriate image.
You may also want to use a custom component if it satisfies your need.
its very easy
change this two thing.Change "type" round rectangle to custom and drag image to project and select it as background .Run and Go
Well so far i was too looking for using custom buttons and the graphics, I've come through this site they have some awesome tutorial which was quite helpful for me. I've watched all the video tutorial and read some books but nothing helped me but this site and their 4 books are quite awesome and really helpful to read and understand it well.
http://www.raywenderlich.com/27191/learn-to-code-ios-apps-4-making-it-beautiful