iOS 全屏返回手势。使用黑魔法，在UINavigationController的分类或者UIViewController控制是否启用手势。轮子的创造大部分借鉴sunnyxx的FDFullscreenPopGesture。
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导入头文件FullscreenPopGesture.h
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全局手势开关
self.navigationController.popGestureRecognizer.enabled = YES;//默认开启
- 控制器属性开关
self.interactivePopDisabled = NO;//当前控制器是否开启手势,默认NO
self.prefersNavigationBarHidden = NO;//导航条是否隐藏，默认NO当控制器的view包含UIScrollView,全局手势会与UIScrollView默认的手势冲突。解决思路：判断全局手势，并且滑动到最左侧，则启用多重手机，否则不启用多重手势。
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
if (self.contentOffset.x <= 0) {
if ([otherGestureRecognizer.delegate isKindOfClass:NSClassFromString(@"UINavigationController")]) {
return YES;
}
}
return NO;
}
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