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POiOS Custom Back Button without calling method in every View Controller
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  1. POiOS Custom Back Button without calling method in every View Controller
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    copied!<p>I would like a more elegant solution to changing the back button for an Application's Navigation Bar. All the answers I've seen only talk about customizing a button and then adding at least one line of code to each View Controller for the new button to display.</p> <p>I have a category where I modify the Navigation Bar's background and Title. It's a category of <code>UINavigationBar</code>. The category calls <code>willMoveToWindow:</code> to call methods each time a new view is pushed on the Navigation Controller.</p> <p>So here's how the code to create a new button would look:</p> <pre><code>- (void)applyCustomButton{ UIButton *backButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 26, 26)]; [backButton setImage:[UIImage imageNamed:@"arrow-left"] forState:UIControlStateNormal]; [backButton setShowsTouchWhenHighlighted:TRUE]; [backButton addTarget:self action:@selector(popViewControllerAnimated:) forControlEvents:UIControlEventTouchDown]; UIBarButtonItem *barButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton]; [self.navigationItem setLeftBarButtonItem:barButtonItem]; } </code></pre> <p>The problem here is that <code>self.navigationItem</code> won't work here. I don't want to bore you with all the things I tried categorizing, but that property only works on View Controllers (I think)?</p> <p>You don't have to give me a solution for the code above, maybe you have a better way of customizing the Back Button on the Navigation Bar without having to write code on every View Controller Class I have. I just hate repetition because maintaining code like that sucks.</p> <p>Thanks in advance. </p>
 

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