需求背景：
在有tabbar的首頁(yè)點(diǎn)擊navigationbar的時(shí)間選擇器，彈出時(shí)間選擇器頁(yè)面，tabbar隱藏，對(duì)時(shí)間選擇器進(jìn)行選擇

難點(diǎn)：
tabbar隱藏之后，彈出來的時(shí)間選擇器不能選擇原來tabbar位置的地方，點(diǎn)擊無響應(yīng)

解決辦法：

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
{
if (!self.isUserInteractionEnabled || self.isHidden || self.alpha <= 0.01) {
    return nil;
}
if ([self pointInside:point withEvent:event]) {
    for (UIView *subView in [self.subviews reverseObjectEnumerator]) {
        CGPoint convertedPoint = [subView convertPoint:point fromView:self];
        UIView *hitTestView = [subView hitTest:convertedPoint withEvent:event];
        if (hitTestView) {
            return hitTestView;
        }
    }
    return self;
} else {
    for (UIView *subView in [self.subviews reverseObjectEnumerator]) {
        CGPoint convertedPoint = [subView convertPoint:point fromView:self];
        UIView *hitTestView = [subView hitTest:convertedPoint withEvent:event];
        if (hitTestView) {
            return hitTestView;
        }
    }
    return nil;
}
return nil;
}

重寫controller的view的hittest方法，讓其在點(diǎn)擊tabbar的位置時(shí)進(jìn)行相應(yīng)

另外，在controller的loadview方法里，load重寫的這一個(gè)view

- (void)loadView
{

MJHomeControllerView *view = [[MJHomeControllerView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.view = view;
}