Centering on a UIToolBar with a UIToolbarButton on either side - objective-c

Question

I am trying to center some text on a UIToolBar with a button on either side, but I am having some problems.
I have the following code:
UIToolbar *toolBar = [[UIToolbar alloc] initWithFrame:toolbarInitialFrame];
toolBar.barStyle = UIBarStyleBlackTranslucent;
UILabel * label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 200, 25)];
[label setText:#"Title"];
[label setBackgroundColor:[UIColor clearColor]];
[label setTextColor:[UIColor whiteColor]];
[label setFont:[UIFont boldSystemFontOfSize:16]];
UIBarButtonItem * labelEmu=[[UIBarButtonItem alloc] initWithCustomView:label];
UIBarButtonItem *cancelButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:#selector(cancelAlarmAndDismissDatePicker:)];
UIBarButtonItem *spacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(setAlarmAndDismissDatePicker:)];
So what I want is the cancel button (cancelButton) on the left, the title (labelEmu) centered in the middle, and the done button (doneButton) on the right. Something like this:
|[Cancel] Title [Done]|
I was hoping I could achieve that with this:
[toolBar setItems:[NSArray arrayWithObjects: cancelButton, spacer, labelEmu, spacer, doneButton, nil]];
But unfortunately what I get is this:
|[Cancel]Title [Done]|
After some playing about, Ive found that this line:
[toolBar setItems:[NSArray arrayWithObjects: cancelButton, spacer, labelEmu, spacer, nil]];
...produces this:
|[Cancel] Title |
Where the title is centered, ignoring the fact that the cancel button is there. But when I do this:
[toolBar setItems:[NSArray arrayWithObjects: spacer, labelEmu, spacer, doneButton, nil]];
...it produces this:
| Title [Done]|
Where the title is centered in the space between the far left edge and the right side of the done button. It is not ignoring the done button in the same way it ignores the cancel button.
Can anybody point me in the right direction to get what I am after? Sorry about all the naff ASCII diagrams! :)

Answer 1

Maybe try using:
[[UIBarButtonItem alloc] initWithTitle:#"yourtitle" style:UIBarButtonItemStylePlain target:nil action:nil];
It might help if the UITollbar will be in charge on the label.
EDIT
Try adding:
[label sizeToFit];
Before adding it to the tollBar

Answer 2

---EDITED---
After further investigation - turns out problem really was label. You have set it's width to 200.
Should be a lot less for it to autoresize correctly.
See this code:
UIToolbar *toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 200, 320, 50)];
toolBar.barStyle = UIBarStyleBlackTranslucent;
[self addSubview:toolBar];
UILabel * label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 300, 25)];
[label setText:#"Title"];
[label setBackgroundColor:[UIColor clearColor]];
[label setTextColor:[UIColor whiteColor]];
[label setFont:[UIFont boldSystemFontOfSize:16]];
[label sizeToFit];
UIBarButtonItem * labelEmu=[[UIBarButtonItem alloc] initWithCustomView:label];
UIBarButtonItem *cancelButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:#selector(cancelAlarmAndDismissDatePicker:)];
UIBarButtonItem *spacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(setAlarmAndDismissDatePicker:)];
[toolBar setItems:[NSArray arrayWithObjects: cancelButton, spacer, labelEmu, spacer, doneButton, nil]];
It generated something like this: