-[UIBarButtonItem setTitlePositionAdjustment:forBarMetrics:] ignores vertical offset - ios

I have an application with some custom positioned bars, and as such I'd like to change the standard vertical alignment of the button text. I've tried setting
[buttonItem setTitlePositionAdjustment:UIOffsetMake(0, -22) forBarMetrics:UIBarMetricsDefault]
but nothing changes. Oddly, if I set a horizontal offset, the button moves just fine. It appears only vertical alignment changes are not being respected. Is this a bug on iOS 7? Am I misunderstanding something about the API? I see no documentation saying that the vertical alignment is ignored.
(example project showing the issue)

Unfortunately setTitlePositionAdjustment:forBarMetrics: doesn't appear to take effect. The best workaround I found was to use a UIButton instead, which can be done right in Interface Builder.
Add a UIButton to the UIBarButtonItem and set the font or image, size, etc.
In the Attributes Inspector, set the UIButton's control alignment to right
Hook the button back up to whatever actions you need

Related

iOS/Swift: Dynamically Resize a Toolbar

I'm trying to make an app with a toolbar that can be resized. Basically, the toolbar can alternate between being at the bottom of the view and being at the top. When a button is pressed, it switches from one to the other. The problem is that when it is at the top, I want the size of the toolbar to expand to accommodate the status bar, but I don't know how to do this.
I've seen some solutions for changing the toolbar size but they all seem static and not something that can be changed with the tap of a button. Any suggestions on how to do this? Perhaps a different solution altogether?
You can use a normal UIView and customize it so it looks like a UIToolbar, then just set constraints using AutoLayout and animate the height-constraint.

UIToolbarPosition set to bottom on resize

I have a UIToolBar at the top of one of my views and the shadowing shows up on the bottom of the tool bar as I'd expect. I know UIToolbarPosition is internally set to UIToolbarPositionTop.
When I rotate my device (iPad), the tool bar grows (using auto sizing in IB) and the UIToolbarPosition changes to UIToolbarPositionBottom which flips the shadow to be at the top of the bar. If I don't have the bar resize, it remains correct, but of course doesn't stretch to match screen width.
So, what gives? What would cause the UIToolbarPosition to flip on me? This is sitting at 0,0 the whole time and only changes width based on rotation.
Extra: I've considered work arounds like using a UINavigationBar. UIAppearance is probably a no go because I do have a toolbar at the bottom too and I do want my "top" different than my "bottom"
I eventually solved this using the UIBarPositioning protocol on UIToolBarand setting the barPosition = UIBarPositionTop

iOS UIToolbar recognizes touch

I made a vertical (in looks) toolbar programmatically. Using initWithFrame I set the width and height of the toolbar and sent it to extreme right.
Now I added a bar button item to the toolbar and set an action for it. But when I click anywhere on the toolbar, the action message is being sent. And I checked the sender, the sender is not the toolbar but the button.
I tried on another toolbar which I placed horizontally, the buttons are seen as tapped if I click in the vicinity of the button. And since now my toolber is vertical (but horizontal according to iOS), clicking anywhere on the toolbar calls the function.
I want to send the message only when I click on the button and not on the toolbar.
I want to use the camera icon provided by apple, so I am not in favor of using UIButton. (I can set a custom image, but it would be good if i can avoid that)
I also think that placing a horizontal toolbar and using CGAffineTransform can solve the problem. But it would be nice if there is clean method.
Using the transform is definitely the way to go.
Run the identity transform through this function and set it as the transform on your bar. I think it is a very simple solution.
It shouldn't be hard to set the transform right after you init with a normal frame. To avoid stretching you can make that frame using the values you are already using but swapping the x and y.
I don't believe that UIToolbar supports vertical orientation; you'll probably be better off rolling your own toolbar-like control.

How do I replicate the iOS keyboard appearance?

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.

iPad Toolbar UI Question

I need to have an iPad app that has a consistent toolbar at the top of the screen. I need it to adjust when switch from landscape to portrait. Essentially what I need is something that acts like a UINavigationController, but allows me to have an arbitrary number of buttons like a UIToolbar. I've seen this done, but I can't figure out how to do it.
Thanks
There is no reason you can't just use a standard UIToolbar at the top of the screen, rather than the bottom. This allows you to add as many buttons as you can squeeze on, and customise their appearance.
In order that it should adjust its size when switching interface orientation, you simply need to adjust its autoresizingMask property. This is easy in Interface Builder - just turn on the horizontal arrow in the middle of the autoresizing box (this makes the width flexible), and maybe make sure that the left, right and top struts are enabled to so as to hold it in the correct position.

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