SwipeBack

Re-enable iOS7 swipe-to-back while custom back button is set.

1. With setting custom back button via leftBarButtonItem, default swipe-to-back gesture is disabled.

2. Assigning interactivePopGestureRecognizer as UINavigationController (a common solution) can cause unexpected errors:

   • nested pop animation can result in corrupted navigation bar
   • Finishing up a navigation transition in an unexpected state. Navigation Bar subview tree might get corrupted.

3. Put custom code everywhere around UINavigationController is too annoying.

1. Not annoying
   You don't need to code.

2. iOS7 native behavior
   Not a foolishly-customized gesture recognizer.

3. Safe
   No error anymore.

Just add a line below into your Podfile. You don't need to write any code. CocoaPods automatically import SwipeBack globally.

pod 'SwipeBack'

Import SwipeBack at your .pch file.

#import "SwipeBack.h"

It's done.

See UINavigationController+SwipeBack.m and UIViewController+SwipeBack.m. Want to know more about method swizzling, visit here.