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ios - Disable/Enable back button from detail view

How can I disable the back button from the detail view controller?

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Depending on your configuration:

self.navigationItem.hidesBackButton = YES;

OR:

self.navigationController.navigationItem.hidesBackButton = YES;

Or, if you just want to disable the button without hiding it, you can use this.

self.navigationController.navigationItem.backBarButtonItem.enabled = NO;

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