关于全屏侧滑的效果可以参考《8行代码教你搞定导航控制器全屏滑动返回效果》上面说的很详细，我实现的监听侧滑偏移量就是在其基础上改造实现的。http://www.cocoachina.com/ios/20150811/12897.html
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实现的效果:
demo.gif
代码:
@interface NavigationViewController ()<UIGestureRecognizerDelegate>
//记录自定义手势的开始位置
@property (nonatomic, assign) CGFloat startX;
@end
@implementation NavigationViewController
- (void)viewDidLoad {
[super viewDidLoad];
//自定义滑动手势
UIPanGestureRecognizer *panGestureRecognizer = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(myHandleNavigationTransition:)];
//将自定义手势添加到NavigationController的view上
[self.view addGestureRecognizer:panGestureRecognizer];
//设置自定义手势的代理，用于拦截自定义手势的触发
panGestureRecognizer.delegate = self;
//关闭系统的边缘手势
self.interactivePopGestureRecognizer.enabled = NO;
}
- (void)myHandleNavigationTransition:(UIPanGestureRecognizer *)panGesture{
//调用系统手势绑定的方法
[self.interactivePopGestureRecognizer.delegate performSelector:@selector(handleNavigationTransition:) withObject:panGesture];
//计算偏移量
CGFloat offetX = [panGesture locationInView:self.view].x - self.startX;
if (offetX >= 0) {
//输出偏移量
NSLog(@"%f", offetX);
} else {
NSLog(@"%f", 0.0f);
}
}
//拦截自定义手势的触发，并记录触发手势的开始位置
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer{
//导航控制器的跟控制器不需要返回侧滑手势（如果不屏蔽会有奇怪的效果）
if (self.childViewControllers.count == 1) {
return NO;
}
//记录触发手势的开始位置
self.startX = [gestureRecognizer locationInView:self.view].x;
return YES;
}
Demo下载链接:
https://github.com/w-wh/WHPanGestureDemo
