UICollectionView

UICollectionView

#pragma mark - Process data
- (CGFloat) calculateWidthItem{
    return ([[UIScreen mainScreen]bounds].size.width -16 - 4*10)/2;
}

- (CGFloat) calculateHeightItem{
    return (([[UIScreen mainScreen]bounds].size.width -16 - 4*10)/2)*1.5;
}
--> widthItem = [self calculateWidthItem];
    heightItem = [self calculateHeightItem];
    seperator = 10.0f;


#pragma mark - UICollectionView Delegate
-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView{
    return 1;
}

-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
    return arrayPost.count;
}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    return CGSizeMake(widthItem, heightItem);
}
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
    return seperator;
}
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section {
    return seperator;
}
- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
    
    return UIEdgeInsetsMake(seperator, seperator, seperator, seperator);
}
-(UICollectionViewCell*) collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
    if (!nibCustomCellLoaded) {
        UINib *nib = [UINib nibWithNibName:@"CCGridPostImage" bundle:nil];
        [collectionView registerNib:nib forCellWithReuseIdentifier:@"CCGridPostImage"];
        nibCustomCellLoaded = YES;
    }
    CCGridPostImage *cell = (CCGridPostImage*)[collectionView dequeueReusableCellWithReuseIdentifier:@"CCGridPostImage" forIndexPath:indexPath];
  return cell;
}
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
    
}


//LOAD MORE
#pragma mark - UIScroll Delegate
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate {
    
    // UITableView only moves in one direction, y axis
    CGFloat currentOffset = scrollView.contentOffset.y;
    CGFloat maximumOffset = scrollView.contentSize.height - scrollView.frame.size.height;
    
    //NSInteger result = maximumOffset - currentOffset;
    
    // Change 10.0 to adjust the distance from bottom
    if (currentOffset - maximumOffset > 10) {
        skip = skip + limit;
        [self getArrPostWithLimit:limit andSkip:skip];
    }
    
}