navigation bar and search bar hide_show code

gistfile1.txt

mbcoll

- (id)viewController
{
    UIResponder *nextResponder =[[self superview] nextResponder];
    if ([nextResponder isKindOfClass:[StoreListViewController class]]) {
        return (StoreListViewController*)nextResponder;
    }
    else if ([nextResponder isKindOfClass:[OfferListViewController class]]){
        return (OfferListViewController*)nextResponder;
    }
    return  nil;
}

- (CGFloat)getListViewTop
{
    UIViewController* uvc = [self viewController];
    CGFloat searchBarOriginY = 0.0;
    CGFloat searchBarSizeHeight = 0.0;
    if ([uvc isKindOfClass:[StoreListViewController class]]) {
        searchBarOriginY = ((StoreListViewController*)uvc).storeSearchB.frame.origin.y;
        searchBarSizeHeight = ((StoreListViewController*)uvc).storeSearchB.frame.size.height;
    } else if ([uvc isKindOfClass:[OfferListViewController class]]) {
        searchBarOriginY = ((OfferListViewController*)uvc).filterSearchB.frame.origin.y;
        searchBarSizeHeight =  ((OfferListViewController*)uvc).filterSearchB.frame.size.height;
    }
//    NSLog(@"Y : %2f, H : %2f", searchBarOriginY, searchBarSizeHeight);
    
    if (searchBarSizeHeight + searchBarOriginY >= 20.0) {
        return (searchBarOriginY + searchBarSizeHeight) > 152.0 ? 152 : (searchBarOriginY + searchBarSizeHeight);
    }
    return 20.0;
}
- (BOOL)isListViewMove
{
    UIViewController* uvc = [self viewController];
    CGFloat searchBarOriginY = 0.0;
    if ([uvc isKindOfClass:[StoreListViewController class]]) {
        searchBarOriginY = ((StoreListViewController*)uvc).storeSearchB.frame.origin.y;
    } else if ([uvc isKindOfClass:[OfferListViewController class]]){
        searchBarOriginY = ((OfferListViewController*)uvc).filterSearchB.frame.origin.y;

    }
    if (searchBarOriginY-64.0 > 0.0000001 || searchBarOriginY-64.0 < 0.0000001) {
        return true;
    }
    return false;
    
}

- (void)stoppedScrolling
{
    UIViewController* uvc = [self viewController];
    CGRect frame = uvc.navigationController.navigationBar.frame;
    if (frame.origin.y < 20) {
        [self animateNavBarTo:-(frame.size.height - 21)];
    }
}

- (void)updateBarButtonItems:(CGFloat)alpha
{
    
    UIViewController* uvc = [self viewController];
    uvc.navigationController.navigationBar.titleTextAttributes = [NSDictionary dictionaryWithObject:[UIColor colorWithRed:1 green:1 blue:1 alpha:alpha] forKey:UITextAttributeTextColor];
    uvc.navigationController.navigationBar.topItem.rightBarButtonItem.customView.alpha = alpha;
    uvc.navigationController.navigationBar.topItem.leftBarButtonItem.customView.alpha = alpha;
}

- (void)animateNavBarTo:(CGFloat)y
{
    UIViewController* uvc = [self viewController];
    [UIView animateWithDuration:0.2 animations:^{
        CGRect frame = uvc.navigationController.navigationBar.frame;
        CGFloat alpha = (frame.origin.y >= y ? 0 : 1);
        frame.origin.y = y;
        [uvc.navigationController.navigationBar setFrame:frame];
        [self updateBarButtonItems:alpha];
    }];
}

- (CGRect)setNeedToHideOrShowUIViewFrame:(CGRect)frame scrollView:(UIScrollView *)scrollView
{
    CGFloat size = frame.size.height - 21;
    if (scrollView.contentOffset.y+152 <= 0.0f) {
        frame.origin.y = 20;
    }  else {
        frame.origin.y = MAX(-size, 20-(152+scrollView.contentOffset.y));
    }
    return frame;
}

- (CGRect)setNeedToHideOrShowUISearchFrame:(CGRect)frame scrollView:(UIScrollView *)scrollView
{
    if (scrollView.contentOffset.y+152 <= 0.0f) {
        frame.origin.y = 64;
    } else {
        frame.origin.y = 64-(152+scrollView.contentOffset.y);
    }
    return frame;
}

-(void)navigationBarAndSearchBarHideOrShow:(UIScrollView *)scrollView {
    UIViewController* viewController = [self viewController];
    
    CGRect frame = viewController.navigationController.navigationBar.frame;
    CGFloat framePercentageHidden = ((20 - frame.origin.y) / (frame.size.height - 1));
    
    if ([viewController isKindOfClass:[StoreListViewController class]]) {
        CGRect storesearchBFrame = ((StoreListViewController*)viewController).storeSearchB.frame;
        storesearchBFrame = [self setNeedToHideOrShowUISearchFrame:storesearchBFrame scrollView:scrollView];
        [((StoreListViewController*)viewController).storeSearchB setFrame:storesearchBFrame];
    }
    else if ([viewController isKindOfClass:[OfferListViewController class]]){
        CGRect offersearchBFrame = ((OfferListViewController*)viewController).filterSearchB.frame;
        offersearchBFrame = [self setNeedToHideOrShowUISearchFrame:offersearchBFrame scrollView:scrollView];
        [((OfferListViewController*)viewController).filterSearchB setFrame:offersearchBFrame];
    }
    
    [self updateBarButtonItems:(1 - framePercentageHidden)];
    frame = [self setNeedToHideOrShowUIViewFrame:frame scrollView:scrollView];
    [viewController.navigationController.navigationBar setFrame:frame];
    
    NSInteger topValue = (NSInteger)[self getListViewTop];
//    NSLog(@"topValue : %i", topValue);
    
    self.listView.contentInset = UIEdgeInsetsMake(topValue, 0, 0, 0);
    lastOffset.y = scrollView.contentOffset.y;
}

- (NSInteger) countOfRows {
    NSInteger previousOpenSectionIndex = self.openSectionIndex;
    if (previousOpenSectionIndex != NSNotFound) {
		SectionData *previousOpenSection = [self.listData objectAtIndex:previousOpenSectionIndex];
        NSInteger countOfRows = [previousOpenSection.cells count];
        return countOfRows;
    }
    return 0;
}

- (BOOL) isKindOfStoreOrOffer
{
    UIViewController *uvc = [self viewController];
    if ([uvc isKindOfClass:[StoreListViewController class]] || [uvc isKindOfClass:[OfferListViewController class]]) {
        return true;
    }
    return  false;
}

- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{

    if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0") && [self isKindOfStoreOrOffer]) {
        [self navigationBarAndSearchBarHideOrShow:scrollView];
    }
    
    [self.slimeRefreshV scrollViewDidScroll];
}


- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView
                  willDecelerate:(BOOL)decelerate
{
    [self.slimeRefreshV scrollViewDidEndDraging];
}



merchantDetail
- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view.
    [self setupNavBarWithBackBtn:self.merchantName];
    
    [self.merchantSegmentBar addTarget:self
                         action:@selector(segmentControlValueChanged:)
               forControlEvents:UIControlEventValueChanged];
    
    _contentListV.listDelegate = self;
    CGRect frame = self.navigationController.navigationBar.frame;
    frame.origin.y = 20;
    [self.navigationController.navigationBar setFrame:frame];
    if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0")) {
        [_contentListV setupCollapseListView:YES contentInset:UIEdgeInsetsMake(108, 0, 0, 0)];
    } else {
        [_contentListV setupCollapseListView:YES];
    }
    
    _contentListData = [[NSMutableArray alloc] init];
    
    TaskItem* t = [[TaskItem alloc] initTask:@selector(doInitFetch)
                                   forTarget:self
                                    withInfo:nil
                                 andObserver:self];
    [[TaskCenter sharedTaskCenter] addTask:t];
    [t release];
}

merchantlist

- (void)stoppedScrolling
{
    CGRect frame = self.navigationController.navigationBar.frame;
    if (frame.origin.y < 20) {
        [self animateNavBarTo:-(frame.size.height - 21)];
    }
}

- (void)updateBarButtonItems:(CGFloat)alpha
{
    self.navigationController.navigationBar.titleTextAttributes = [NSDictionary dictionaryWithObject:[UIColor colorWithRed:1 green:1 blue:1 alpha:alpha] forKey:UITextAttributeTextColor];
    self.navigationController.navigationBar.topItem.rightBarButtonItem.customView.alpha = alpha;
    self.navigationController.navigationBar.topItem.leftBarButtonItem.customView.alpha = alpha;
}

- (void)animateNavBarTo:(CGFloat)y
{
    [UIView animateWithDuration:0.2 animations:^{
        CGRect frame = self.navigationController.navigationBar.frame;
        CGFloat alpha = (frame.origin.y >= y ? 0 : 1);
        frame.origin.y = y;
        [self.navigationController.navigationBar setFrame:frame];
        [self updateBarButtonItems:alpha];
    }];
}

- (CGRect)setNeedToHideOrShowUIViewFrame:(CGRect)frame scrollView:(UIScrollView *)scrollView
{
    CGFloat size = frame.size.height - 21;
    if (scrollView.contentOffset.y+152 <= 0.0f) {
        frame.origin.y = 20;
    }  else {
        frame.origin.y = MAX(-size, 20-(152+scrollView.contentOffset.y));
    }
    return frame;
}

- (CGRect)setNeedToHideOrShowUISearchFrame:(CGRect)frame scrollView:(UIScrollView *)scrollView
{
    if (scrollView.contentOffset.y+152 <= 0.0f) {
        frame.origin.y = 64;
    } else {
        frame.origin.y = 64-(152+scrollView.contentOffset.y);
    }
    return frame;
}

- (CGFloat)getListViewTop
{
    CGFloat searchBarOriginY = 0.0;
    CGFloat searchBarSizeHeight = 0.0;
    
    searchBarOriginY = self.merchantSearchB.frame.origin.y;
    searchBarSizeHeight = self.merchantSearchB.frame.size.height;
    
    if (searchBarSizeHeight + searchBarOriginY >= 20.0) {
        return (searchBarOriginY + searchBarSizeHeight) > 152.0 ? 152 : (searchBarOriginY + searchBarSizeHeight);
    }
    return 20.0;
}

-(void)navigationBarAndSearchBarHideOrShow:(UIScrollView *)scrollView {
    
    CGRect frame = self.navigationController.navigationBar.frame;
    CGRect merchantSearchBarFrame = self.merchantSearchB.frame;
    
    CGFloat framePercentageHidden = ((20 - frame.origin.y) / (frame.size.height));
    
    [self.navigationController.navigationBar setFrame:[self setNeedToHideOrShowUIViewFrame:frame scrollView:scrollView]];
    [self.merchantSearchB setFrame:[self setNeedToHideOrShowUISearchFrame:merchantSearchBarFrame scrollView:scrollView]];
    [self updateBarButtonItems:(1 - framePercentageHidden)];
    
    CGFloat topinset = [self getListViewTop];
    self.merchantListV.contentInset = UIEdgeInsetsMake(topinset, 0, 0, 0);
    
    lastOffset.y = scrollView.contentOffset.y;
}

- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
    
    if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0")) {
//        [self changeSearchBar:self.merchantSearchB withTintColor:SEARCHBAR_TINT_IOS7 scopeTintColor:SCOPEBAR_TINT_IOS7];
        [self navigationBarAndSearchBarHideOrShow:scrollView];
    }

}