I want to have a UISlider with a uniform green colour (no gradients).
When I try to paint the uislider's track it appears to have a gradient even if I put the line:
slider.backgroundColor = [UIColor clearColor];
(Second slider in the image)
When I try to put an image coloured green (in the picture is blue but ignore it...) I am not able to round the corners of the layer:
slider.layer.cornerRadius = 10;
EDIT:
I ended up customizing it UISlider custom images and thumb height?
Is it possible for me to achieve this without customising a the uislider?
Ray Wenderlich's site actually has a free tutorial about customizing UIKit components. See User Interface Customization in iOS 6.
Note that although this tutorial is titled in iOS 6, the appearance proxy is available starting in iOS 5.0, so most of this tutorial is actually relevant for iOS 5.0+.
EDIT
Unfortunately, the gradient you mentioned is actually an image that's overlaid on top of the tint color by default, and there doesn't appear to be an easy way (such as a property) to disable this.
As rmaddy suggestions in the comments though, you can simply create and use an image with rounded corners to get around this.
You can do through interface build too.Choose whatever colors or images you want to use.
Swift 4
Add this line after slider.layer.cornerRadius = 10
slider.clipsToBounds = true
Related
I have a circular custom menu with several buttons (with image and text). To not cut title, I had to unlarge button size, but the background of few buttons overlay partially the image or title of other button. That why I'd like to disable the background of buttons, or make image and/title only active.
How can I do?
Thanks
As others have mentioned, you could change the background color quite easily with the following:
Swift 3.0
buttonName.backgroundColor = UIColor.clear
Swift 2.2 and prior
buttonName.backgroundColor = UIColor.clearColor()
Are your buttons overlapping because they're crowded? If so then from a design point of view I'd look at redesigning that aspect. Users may be misclicking if you have a number of overlapping crowded buttons.
I let backgroungColor to gray just to show you. I create buttons with a specific width in order the title is well writen. Maybe I can calculate the exact width of the title and attribute it to the button. That would solve partially the problem.
How can I create a button in a Today widget like the "edit button" in the picture below?
Is there a quick and standard way to do this or must I subclass a button and override it's draw method to draw a filled and rounded rectangle with transparency and background-only highlighting when touched down?
I am trying to find the best way to create exactly the same visuals for a button, instead of trying to imitate and match behaviour of it. Is it possible?
Segmented controls are a default within Xcode. It does most of the heavy lifting for you.
The UIKit Interfact Catalog in the iOS developer library should be helpful for you.
Within Xcode:
You will find segmented controls within the Interface Builder, in the Segmented Control section of the Attributes Inspector.
From here you can begin to build the visual styling and tie it to your code.
This should point you in the right direction.
More from apple is here: Segmented Control in the iOS developer library
They have great documentation, be sure you always seek that out.
From some quick tinkering I've got a UIButton that looks relatively close, you can tinker it some more to get it perfect. Here's a picture:
My buttons settings (the top one) has a height of 28, corner radius of 3, font color of black, and a background color of white with 31% Opacity. In the picture I was using text size of 15 but 13 or 14 looks a lot more accurate. I used the answers on this question as a reference point on how to create the rounded buttons.
Hope this helps some!
I'm new here so please bear with me.
Can you please help me make a transparent blured background like the one used in iTunes Remote iOS7 app in the store? Also, how is the text masked?
Screenshot here:
(source: rackcdn.com)
I found the "UIImage+ImageEffect" class made by Apple, in a WWDC example Apple posted here: https://developer.apple.com/downloads/index.action?name=WWDC%202013#.
Using this class, is's really simple to blur an image with this code: [image applyLightEffect]
where image as an instance of UIImage.
Here are the steps i took to make the text look like it's "cut" from the background view. Use this layering order:
Blurred Image
View with lower opacity (ex 80%) filled with a color. I used a white background color.
2.1. Set a label as a child of this view and set the tint color to Black.
Add any other content you want on top.
And voila! It magically works!
Use UIToolBar of UIKit framework which automatically comes with blur and transparent effect on background view (live).
Reason - Since UIToolBar inherits UIView so fundamentally there is no issue in using it in place of UIView.
Is drag and drop of round rect button no longer available in Xcode 5? I can't seem to find it in the Interface Builder. I was guessing that this is one of the changes in iOS 7, but I just wanted to make sure.
Can also make the rounded rect within the storyboard.
The Round Rect button from Xcode 4 and previous versions appears to have been replaced with the System Default button, which also happens to be clear. I.e. by default there is no white background with rounded corners, only the text is visible.
To make the button white (or any other colour), select the attributes inspector and scroll down to the View section:
Select Background and change it to White:
If you want rounded corners you can do so with a little bit of code.
Just ctrl-drag from the button to your .h file, call it something like roundedButton and add this in your viewDidLoad:
CALayer *btnLayer = [roundedButton layer];
[btnLayer setMasksToBounds:YES];
[btnLayer setCornerRadius:5.0f];
This was too long for a comment in #Robert's answer, but I just wanted to add regarding the statement: "The Round Rect button from Xcode 4...appears to have been replaced...".
Confirming that it definitely has been replaced:
The rounded rectangle button is deprecated in iOS 7. Instead, use a
system button—that is, a UIButton object of type UIButtonTypeSystem.
iOS 7 system buttons don’t include a bezel or a background appearance.
A system button can contain a graphical symbol or a text title, and it
can specify a tint color or receive its parent’s color.
...
If you need to display a button that includes a bezel, use a button of
type UIButtonTypeCustom and supply a custom background image.
Apple iOS 7 Transition Guide, p. 45, "Rounded Rectangle Button"
So, Apple's recommendation is to use a background image.
Actually in ios 7 the total UI has been changed for basic controls.
If still you want to have a rounded rect button, you have to go for the coregraphical property of UIView subclasses i.e; layer property.
buttonObj.layer.cornerRadius = 5.0f;//any float value
to show the effect you have to give some background color to buttonObj
if you want to set the border width
buttonObj.layer.borderWidth = 2.0f;//any float value
you can also give the color for border
buttonObj.layer.borderColor = [[UIColor greenColor]CGColor];
Note: Here we have to use CGColor for the layers because layers are the core graphical properties of UIViews
I have made a custom number pad keypad for my iOS app, but want it to more closely mirror the appearance of the standard keyboard. I am looking for advice on how to make a standard UIButton look and act like the standard keyboard buttons.
Specifically, I need to figure out the following for the iPad and would like to do as much as possible in an xib or storyboard.
The size of the buttons
The color of the keyboard background (or even better, how can I determine this myself?)
The background color of the button
The font and color of the text in the button
How do I add the shadow under the button?
How do I have the button highlight with the grey color instead of blue?
The spacing between the buttons
How do I keep the "group" of buttons centered as a whole when changing the orientation? (all of the resizing options anchor it to a side and not to each other)
Do the standard buttons use images, or do they modify standard UIButton's? Or more appropriately, which is better for us to do?
UPDATE:
I have created a project for the number pad which is a complete working example. However, I have not spent much time on the actual appearance, which is what this question was mainly about. I have posted it on Github and made it an open source project (covered by the MIT licence, so commercial use is allowed as well). Hopefully other people will find it useful, and hopefully others will feel inclined to help make it better and look more like the native keyboard. The Github repository is at:
https://github.com/lnafziger/Numberpad
If you want to do it mostly in IB, then the following can be done:
Size
Colours
Background Color
Font
Text Color
Shadow (to UILabel's not UITextArea)
Spacing
AutoSizing
There is a cool PSD vector kit for all types of iOS elements that should help:
http://www.smashingmagazine.com/2008/11/26/iphone-psd-vector-kit/
Anyway, to the rest of the answers:
Size
Take a screenshot of the buttons and determine the size in Photoshop, or you can use CMD+i on the image file to see the pixel dimensions. Remember to use CMD+Shift+4 and then drag (and then Space to make the screenshot).
Colours
Use the DigitalColor Meter app that's preinstalled on the Mac, it's pretty cool for all kinds of functions.
Background Color for UIButton
The actual UIButton will have a background color of [UIColor clear], however, for the whole keyboard background, it would be best to create something similar in Photoshop and again using color pickers to get the right gradients. Then you could drag this into IB as a background image.
Font
Again, have a look at fonts/try Helvetica
Text Color
[UIColor black]
Shadow:
Programmatically:
[text setShadowOffset:(0,1)]; // One option
[text setShadowOffset:(0,-1); // Another option
[text setShadowColor:[UIColor whiteColor]];
But, you can also set the shadow in the IB inspector for a UILabel.
Button highlight
Look at the UIButton reference
http://developer.apple.com/library/ios/#documentation/UIKit/Reference/UIButton_Class/UIButton/UIButton.html
Spacing & Rotation
If your using IB, then you could just drag on the buttons to whatever location.. IB has some autosizing options that determine where the buttons are spaced according to the TOP, LEFT, RIGHT and BOTTOM. You can also set if they are stretchable or not.