I have a requirement for a very simple Button Bar.
It should take up the width of the screen.
It should allow at least 3
buttons.
The buttons should be of equal width and together take up
the whole width of the bar.
Each button should be tappable, but not
have a selected state.
The bar will be overlaid on a MapView and positioned directly above a TabBar.
Tapping a button will launch a Modal ViewController.
I thought about using a UITabBar and not allowing its tabs to become selected, but the HIG is pretty clear that this is not correct usage and UIToolBar doesn't allow the button widths to be set.
This seems like a very simple requirement but I can't see an obvious solution. Is there something I'm missing? Can anyone suggest a solution?
What's wrong with just creating a simple view that draws an appropriate gradient, and then adding three buttons of the appropriate size?
If you're feeling ambitious, or if this is something that you're likely to use more than once, you could even have the view create the three buttons. Call it ThreeButtonBar or something. Give it a constant height and adjust the width to match that of its superview so that you can use it in portrait or landscape orientation.
Related
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.
I wish to create a view similar in behavior to the UINavigationBar.
I cannot simply customize the bar as I want the space to be taller and I want to have several other subviews on it other than just UIBarButtonItems. So, I want to be able to create a similar implementation including the floating/translucency effect.
I good example of this is the address bar in Safari in iOS 7. The UITextField on the bar is something that cannot be added on the default UINavigationBar. Nevertheless, the Safari bar still has the transparency.
I do not want it to shrink like it does in Safari when scrolling down, I simply want it to remain just like a UINavigationBar would. I was thinking about adding a subview to the root UIScrollView, but this would scroll along with everything. I want this to remain at the top, but I want other elements to be able to scroll.
How would I go about implementing this?
If you are confident that you can't to this with the default UINavigationBar, you could shrink (from the top) the UIScrollView with whatever the size the custom UINavigationBar is and then add the navbar as a subview to the root view at (0,0) coordinates. It will be independent from the scroll view.
On the other hand, if you need this to be persistent through the application and use it in all of the screens, it will be wise to make some changes starting for the AppDelegate, but that's for another question.
For the iOS 7 transparent-style part, look here: FXBlurView. Best of luck!
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
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.
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.