UIBarButtonItem custom editButton

[aldcorn@live.com]

How do I find out what method is used here:

self.navigationItem.rightBarButtonItem = self.editButtonItem;

I have created a custom button and I want it to act like the editButtonItem. I do not know how to do this. The code below is what I am using. All of my custom buttons are showing up but I do not know what I should use in the @selector(...?..

I want my custom editButton to work like the default editButton

UIToolbar *toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0,0,100,45)];
[toolBar setBarStyle:UIBarStyleBlackOpaque];
	
NSMutableArray *buttons = [[NSMutableArray alloc] initWithCapacity:3];
	
UIBarButtonItem *addButton = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(add:)];
addButton.style = UIBarButtonItemStyleBordered;
[buttons addObject:addButton];
[addButton release];
	
UIBarButtonItem *spacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace 
													target:self action:nil];
[buttons addObject:spacer];
[spacer release];
	
UIBarButtonItem *editButton = [[UIBarButtonItem alloc]

//what should I use in the following @selector?...
initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:self action:@selector(:)];
editButton.style = UIBarButtonItemStyleBordered;
[buttons addObject:editButton];

[editButton release];
	
	
[toolBar setItems:buttons animated:NO];
[buttons release];
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:toolBar];

Thanks for having a look,
Rob

[BrianSlick]

Just use the editButtonItem. As noted in the documentation, it calls setEditing:animated:

[aldcorn@live.com]

Hi Brian,
Thanks for the reply.
Because I am creating a subview toolBar in the rightBarButtonItem I can not seem to get the edit button to work there. If I simply use the self.navigationItem.rightBarButtonItem = self.editButtonItem it works but I do not know how to create that editButtonItem in the subview I guess...


I am trying to have three buttons in the navigation bar. Back, add and edit. The back and add buttons are working as expected and the edit button shows up but does not do anything.

Originally Posted by BrianSlick

Just use the editButtonItem. As noted in the documentation, it calls setEditing:animated:

[aldcorn@live.com]

Thanks for your help Brian.
For anyone following this thread the solution for me was to simply rename my editButton to editButtonItem in all spots. Everything appears to be working as expected now.

Take care,
Rob

Originally Posted by BrianSlick

Just use the editButtonItem. As noted in the documentation, it calls setEditing:animated:

[aldcorn@live.com]

Hi,
To follow this process I am now successfully getting the EDIT mode but my EDIT button is not changing to DONE during the editing process. How do I go about resolving this?

Thanks,
Rob

[BrianSlick]

You have to call [super setEditing...] in the method.

[aldcorn@live.com]

Hi,
As far as I understand this I think I am calling this method for my setEditing:

- (void)setEditing:(BOOL)editing animated:(BOOL)animated
{
	[super setEditing:editing animated:animated];
	
	self.navigationItem.hidesBackButton = editing;
	
	//call on each section controller
	for (id<CDLTableSectionControllerProtocol> sectionController in self.sectionControllers) {
		[sectionController setEditing:editing animated:animated];
	}
	
	[self.tableView reloadData];
}

????help...

Originally Posted by BrianSlick

You have to call [super setEditing...] in the method.

[BrianSlick]

Post your new version of the method in the first post. Post the entire method.

[aldcorn@live.com]

- (void)viewDidLoad {
    [super viewDidLoad];
	
UIToolbar *toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0,0,100,45)];
	[toolBar setBarStyle:UIBarStyleBlackOpaque];
NSMutableArray *buttons = [[NSMutableArray alloc] initWithCapacity:3];
	
UIBarButtonItem *addButton = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(add:)];
addButton.style = UIBarButtonItemStyleBordered;
[buttons addObject:addButton];
[addButton release];
	
UIBarButtonItem *spacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace 
target:self action:nil];
[buttons addObject:spacer];
[spacer release];
	
UIBarButtonItem *editButtonItem = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemEdit 
target:self action:@selector(setEditing:animated:)];
	
editButtonItem.style = UIBarButtonItemStyleBordered;
[buttons addObject:editButtonItem];
[editButtonItem release];
	
[toolBar setItems:buttons animated:NO];
[buttons release];
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:toolBar];
		
if (_fullyLoaded) { //only try to load the objects if we have loaded from a plist
	NSError *error;
	//get the intial results back from the fetchedresultscontroller
	if (![[self fetchedResultsController] performFetch:&error]) {
	[[DataController sharedDataController] handleError:error fromSource:@"CDLRootViewController - viewDidLoad - performFetch"];
		}
	}

Originally Posted by BrianSlick

Post your new version of the method in the first post. Post the entire method.

[BrianSlick]

Yeah, you just named it editButtonItem, but you aren't actually using THE editButtonItem. You should.

Also, this is a leak:

self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:toolBar];

[aldcorn@live.com]

I am not sure how to do this...

Originally Posted by BrianSlick

Yeah, you just named it editButtonItem, but you aren't actually using THE editButtonItem. You should.

Also, this is a leak:

self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:toolBar];

[BrianSlick]

What do you mean you don't know how?

Originally Posted by aldcorn@live.com

If I simply use the self.navigationItem.rightBarButtonItem = self.editButtonItem

[aldcorn@live.com]

Are you suggesting that I avoid the use of this toolBar subView?

You are correct that I know how to get the editButtonItem to work when it is the rightBarButtonItem but When I add another button into the rightBarButtonItem as subviews I don't know how to add THE editButtonItem.

I can understand your frustration here and I appreciate your help.

Originally Posted by BrianSlick

What do you mean you don't know how?

[BrianSlick]

[buttons addObject:[self editButtonItem]];

[aldcorn@live.com]

Hi Brian,
I do seem to have implemented this successfully:

[buttons addObject:self.editButtonItem];


My leak:
I tried:
autorelease

Can you point me in the right direction again?

Thanks,
Rob

Originally Posted by BrianSlick

What do you mean you don't know how?

[BrianSlick]

Posting portions of a line of code is not useful. Post the entire line if you're going to post something.

But yes, autoreleasing the button would avoid the leak.

[anilvooty]

Originally Posted by BrianSlick

Posting portions of a line of code is not useful. Post the entire line if you're going to post something.

But yes, autoreleasing the button would avoid the leak.

I am trying to do something similar. Following is my problem, can someone please help

I have added uitoolbar in uinavigationcontroller using IB (by selecting the check box - "show toolbar"). I used IB since this was easy to add flexible spacing bar buttons (I did not want to deal with spacing code programmatically). My issue is that I want to invoke the built-in edit and add functionality for the 2 toolbar buttons I added. I know that in the navigation bar I can use the following code and it will invoke this functionality

self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemA dd target:self action:nil];
Above code takes care of the "Edit view", where the table view items are shown with a delete button next to them.

How can I achieve the same for the buttons that I added to the toolbar? I am using Xcode 4. Please point me to some code examples.