YLFullscreenSlider Swift
给导航控制器添加一个全屏滑动返回的手势。类似QQ.微博的效果 ##如何使用? ###YLFullscreenSlider文件夹拖入你的项目 ###需要的导航栏继承YLFullscreenSliderController即可 ###你也可以拷贝下面代码到你的控制器实现 ##实现代码
//1获取系统的pop手势 guard let systemGes = interactivePopGestureRecognizer else { return } //2获取手势添加的view guard let gesView = systemGes.view else { return } //3.1获取target action
target和action不能够直接拿到。因此要使用运行时和KVO ```Swift //利用运行时机制查看对应属性名称 /* var count : UInt32 = 0 let ivars = class_copyIvarList(UIGestureRecognizer.self,&count)! for i in 0..<count { let ivar = ivars[Int(i)] let name = ivar_getName(ivar) //打印所有属性 print(String(cString: name!)) } */
在运行时中我们找到了target [image](http://og3u5glro.bkt.clouddn.com/all.png?imageView2/2/w/308/h/210/interlace/1/q/100) ```Swift let targets = systemGes.value(forKey: "_targets") as? [NSObject] guard let targetObjc = targets?.first else { return } // print(targetObjc)//打印拿到到的target字典
//3.2取出target guard let target = targetObjc.value(forKey: "target") else { return } //3.3取出target let action = Selector(("handleNavigationTransition:"))
添加进去
//4 创建自己的手势pan let panGes = UIPanGestureRecognizer() gesView.addGestureRecognizer(panGes) panGes.addTarget(target,action: action)