CODEWITHSUNDEEP
iosobjective-ciphoneuicollectionview
Akhil Jiji
Akhil Jiji

Reputation: 185

Change Images in UICollectionView after particular interval

I have 6 cells in a UICollectionView.I would like to change the images in each UICollectionViewCell after a particular interval.How is it possible?

Upvotes: 1

Views: 167

Answers (4)

Bista
Bista

Reputation: 7903

3 Steps:

  1. Set a Timer
  2. Shuffle Array
  3. Refresh Collection View

Step 1 : Set a Timer

[NSTimer scheduledTimerWithTimeInterval:2.0f  
                             target:self 
                           selector:@selector(shuffleView:) 
                           userInfo:nil 
                            repeats:YES];

Step 2: Shuffle Array

Here I found a nice solution on how to shuffle the array using Category:

What's the Best Way to Shuffle an NSMutableArray?

Step 3: Reload Collection View

- (void)shuffleView
{
     [MyArray shuffle];
     [yourCollectionView reloadData];
}

Upvotes: 0

psk
psk

Reputation: 192

//Write this to viewDidLoad

self.timer = [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector(AutomaticScroll) userInfo:nil repeats:YES];

//Add this method to the class 

-(void)AutomaticScroll
{
    if (i<[imgArray count])
    {
        NSIndexPath *IndexPath = [NSIndexPath indexPathForRow:i inSection:0];
        [self.collectionView scrollToItemAtIndexPath:IndexPath
                                         atScrollPosition:UICollectionViewScrollPositionCenteredHorizontally animated:YES];
        i++;
        if (i==[imgArray count])
        {
            i=0;
        }
    }
}

Upvotes: 0

chirag bhalara
chirag bhalara

Reputation: 203

You can do it like this:

[NSTimer scheduledTimerWithTimeInterval:10.0f  
                                 target:self 
                               selector:@selector(updateImage:) 
                               userInfo:nil 
                                repeats:YES];

- (void)updateImage
{
     [yourImageview setImage:[UIImage imageWithName:@"image1"]];
     [yourCollectionView reloadData];
}

Upvotes: 2

Nilesh Patel
Nilesh Patel

Reputation: 6394

Reload the UICollectionView. It will call delegate methods of CollectionView & write your logic over there.

Upvotes: 0

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