Scrolling horizontal and vertical both direction

问题:

I have requirement to scroll the images horizontally and vertically.

I have sections which will segregated vertically and in each section itself it will be so many images which will be scrolled horizontally.

I made vertical scrolling using UICollectionView with Ray wenderlich tutorial but how do I get horizontal scrolling in each section?

Should I use any other object like UITableView or UIScrollview for this purpose?

Any tutorial available how to achieve this?

Is it compulsory to implement Layout subclass or UICollectionviewFlowlayout when using collection view?

EDIT

Till now I have implemented this code which scrolls vertically and has 5 sections each but not able to scroll the individual sections

- (NSInteger)collectionView:(UICollectionView *)view numberOfItemsInSection:(NSInteger)section;
{
    NSArray *arrayReturn = [self returnArray:section];
    return arrayReturn.count;
}

- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{   
    return 5;
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)cv cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    ImageCell *cell = [cv dequeueReusableCellWithReuseIdentifier:@"imagecell" forIndexPath:indexPath];

    NSBlockOperation *operation = [NSBlockOperation blockOperationWithBlock:^{
        NSArray *arrSection = [NSArray arrayWithArray:[self returnArray:indexPath.section]];
        NSString *fileName = [arrSection objectAtIndex:indexPath.row];
        UIImage *image = [UIImage imageNamed:fileName];

           dispatch_async(dispatch_get_main_queue(), ^{
//               cell.imgVw.image = ;
               if([CollectionView.indexPathsForVisibleItems containsObject:indexPath]){
                   ImageCell *currentCell = (ImageCell *) [cv cellForItemAtIndexPath:indexPath];
                   currentCell.imgVw.image = image;
               }

           });
    }];

    [self.thumbnailQueue addOperation:operation];

    return cell;
}

- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{

    HeaderView *Header = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"PhotoHeaderView" forIndexPath:indexPath];

    Header.lblHeaderTitle.text = @"Header title";

    Header.backgroundColor = [UIColor yellowColor];
    return Header;
}

回答1:

Here is a similar tutorial:

http://www.raywenderlich.com/4723/how-to-make-an-interface-with-horizontal-tables-like-the-pulse-news-app-part-2

Basically you need to do following:

• Take a tableView or CollectionView
• In each cell you need to add a scrollview with horizontal scrolling enabled.
• Add items to scroll view of each cell while creating cells and give the scroll view appropriate content size.

It will give you a desired result.

回答2:

Try this

**viewController.h**

IBOutlet UIScrollView *scrollViewMain;


**viewController.m**

- (void)viewDidLoad
{
   [super viewDidLoad];
   [self createDisplay];
// Do any additional setup after loading the view, typically from a nib.
}

-(void) createDisplay
{
for(UIView *subView in scrollViewMain.subviews)
{
    if(![subView isKindOfClass:[UIImageView class]])
    {
        [subView removeFromSuperview];
    }
}
int yPos =5;

for (int i=0; i< 10; i++)
{

    int xPosition=5;


    UIScrollView *scrollView =[[UIScrollView alloc]initWithFrame:CGRectMake(xPosition, yPos, scrollViewMain.frame.size.width, 100)];
    scrollView.backgroundColor =[UIColor clearColor];
    scrollView.autoresizingMask =UIViewAutoresizingFlexibleWidth;



    xPosition +=5;

    for (int j=0; j<10; j++)
    {

        UILabel *lblTitle = [[UILabel alloc] initWithFrame:CGRectMake(xPosition, 0, 100, 100)];
        lblTitle.textColor = [UIColor whiteColor];
        lblTitle.backgroundColor =[UIColor greenColor];
        lblTitle.text = @"test";
        lblTitle.numberOfLines =0;
        lblTitle.font = [UIFont boldSystemFontOfSize:15];

        [scrollView addSubview:lblTitle];

        xPosition +=100;
        xPosition +=10;
    }
    [scrollView setContentSize:CGSizeMake(xPosition, 100)];
    [scrollViewMain addSubview:scrollView];
    yPos +=120;
}
[scrollViewMain flashScrollIndicators];
[scrollViewMain setContentSize:CGSizeMake(0, yPos)];
  }