导航栏全屏滑动返回

1.首先创建一个UINavigationController的子类，然后在子类的.m文件中viewDidLoad函数中实添加

UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self.interactivePopGestureRecognizer.delegate action:@selector(handleNavigationTransition:)];
pan.delegate = self;
[self.view addGestureRecognizer:pan];

然后使用子类导航栏就可以实现全屏滑动返回效果了