A->B->C,
B需要禁用侧滑返回，A和C正常（默认支持侧滑返回）。A、B、C的基类都是BaseVC。
1、在BaseVC里设置一个属性：
@property (nonatomic, assign) BOOL DisableSidePop;//禁止侧滑返回
在.m文件里写set方法
- (void)setDisableSidePop:(BOOL)DisableSidePop{
_DisableSidePop = DisableSidePop;
if (DisableSidePop) {
if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
self.navigationController.interactivePopGestureRecognizer.delegate = self;
}
}else{
if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
self.navigationController.interactivePopGestureRecognizer.delegate = nil;
}
}
}
加上手势代理方法
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {
return !self.DisableSidePop;
}
也可以在dealloc里设置手势代理失效，以防万一。
- (void)dealloc{
[[NSNotificationCenter defaultCenter] removeObserver:self];
if (self.DisableSidePop) {
self.navigationController.interactivePopGestureRecognizer.delegate = nil;
}
}
2、使用：在A页面要Push B的时候写
BVC *vc = [[BVC alloc]init];
self.DisableSidePop = NO;
vc.DisableSidePop = YES;
[self.navigationController pushViewController:vc animated:YES];
3、结束。
此操作是在iOS12环境下，其他环境不知道是否有效
