Creating a common UIToolbar helper file and methods for Objective C
I have build a view with a UIToolbar which is working great.
This toolbar will be appearing right across the app, and right now I am copy/pasting the code into lots of different files.
I do not want to repeat myself, and am looking to create a helper file that will include the toolbar setup and the methods linked to the toolbar in every file I need.
I've tried putting the following code into a .h .m file and inheriting from UIView, but there is a problem because there is a reference to self.navigiationItem
Is there a way that I can create a common Objective C file that will have all the code and methods I want to use?
Thanks.
- (void)viewDidLoad
// ...
// appears in viewDidLoad
// ---- TOOLBAR -----------//
UIToolbar *toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 100.0, 44.01f)];
//[toolbar setBackgroundColor:[UIColor blackColor]];
//[toolbar setTintColor:[UIColor redColor]];
//[toolbar.layer setBorderColor:[[UIColor redColor] CGColor]];
// Bar buttons
UIBarButtonItem *barReloadBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:self action:@selector(btnReload:)];
[barReloadBtn setStyle:UIBarButtonItemStyleBordered];
// Profile bar button
UIImage *image = [[UIImage alloc] initWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"111-user" ofType:@"png"]];
UIBarButtonItem *barProfileBtn = [[UIBarButtonItem alloc] init开发者_JAVA技巧WithImage:image style:UIBarButtonItemStyleBordered target:self action:@selector(btnProfile:)];
// Button array
NSMutableArray *buttons = [[NSMutableArray alloc] init];
[buttons addObject:barProfileBtn];
[buttons addObject:barReloadBtn];
[toolbar setItems:buttons];
// Set nav items
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:toolbar];
// memory cleanup
[image release];
[buttons release];
[barReloadBtn release];
[barProfileBtn release];
[toolbar release];
// ---- /TOOLBAR -----------//
}
#pragma mark - IBActions
-(IBAction) btnProfile:(id)sender
{
UserProfileVC *userProfileVC = [[UserProfileVC alloc] initWithNibName:@"UserProfileVC" bundle:[NSBundle mainBundle]];
UINavigationController *tmpNavCon = [[UINavigationController alloc] initWithRootViewController:userProfileVC];
[self.navigationController presentModalViewController:tmpNavCon animated:YES];
[tmpNavCon release];
[userProfileVC release];
}
-(IBAction) btnReload:(id)sender
{
NSLog(@"Not done yet");
}
navigationItem
is a property of UIViewController
, not UIView
. If you've got common functionality like this, I would inherit from UIViewController
, add your custom logic to viewDidLoad
(or wherever is appropriate) and then inherit your view controllers from that class. Just make sure you call [super viewDidLoad]
from your subclasses' implementations of viewDidLoad
.
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