禁止右滑触发当前控制器的pop方法

禁用 iOS7 返回手势

if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {

    self.navigationController.interactivePopGestureRecognizer.enabled = NO;

}

开启右滑返回模式

if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {

    self.navigationController.interactivePopGestureRecognizer.enabled = YES;

}