iOS iOS7以上設置leftBarButtonItem後滑動返回實效

在pushViewController之後加入如下代碼：

[self.navigationController pushViewController:viewController animated:YES];

// 開啓iOS7的滑動返回效果

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

{

    self.navigationController.interactivePopGestureRecognizer.delegate =nil;

}

原文鏈接：http://blog.csdn.net/zhaoxy_thu/article/details/15811189