实现滚动界面

 

 

父子控制器，

-(void)setupBottomScrollView
{
    UIScrollView *bottomScrollView = [[UIScrollView alloc]init];
    bottomScrollView.frame = CGRectMake(0,TitleViewH + 0.5 , ScreenWidth , ScreenHeight);
    bottomScrollView.scrollEnabled = YES;
    bottomScrollView.backgroundColor = [UIColor whiteColor];
    bottomScrollView.showsHorizontalScrollIndicator = NO;
    bottomScrollView.showsVerticalScrollIndicator = NO;
    bottomScrollView.delegate = self;
    bottomScrollView.bounces = NO;
    bottomScrollView.pagingEnabled =YES;
    bottomScrollView.userInteractionEnabled = YES;
    bottomScrollView.contentSize = CGSizeMake(_titleArr.count * ScreenWidth, ScreenHeight);
    [self.view addSubview:bottomScrollView];
    _contentScrollView = bottomScrollView;
    
    if (!_deviceInfoVc) {
        _deviceInfoVc = [[HWDeviceInfoVC alloc]init];
        _deviceInfoVc.view.frame = CGRectMake(0, 0, ScreenWidth, ScreenHeight);
        _deviceInfoVc.delegate = self;
    }
    if (!_alarmInfoVc) {
        _alarmInfoVc = [[HWAlarmInfoVC alloc]init];
        _alarmInfoVc.view.frame = CGRectMake(ScreenWidth, 0, ScreenWidth, ScreenHeight);
    }
    if (!_actualTimeVc) {
        _actualTimeVc = [[HWActualTimeVC alloc]init];
        _actualTimeVc.view.frame = CGRectMake(ScreenWidth * 2, 0, ScreenWidth, ScreenHeight);
    }

    [_contentScrollView addSubview:_deviceInfoVc.view];
    [_contentScrollView addSubview:_alarmInfoVc.view];
    [_contentScrollView addSubview:_actualTimeVc.view];
    
    [self addChildViewController:_deviceInfoVc];
    [self addChildViewController:_alarmInfoVc];
    [self addChildViewController:_actualTimeVc];
    /**--------根据_detailVcType类型判断优先显示哪一个View--------------**/
    _contentScrollView.contentOffset = CGPointMake(_detailVcType *ScreenWidth , 0);

}