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how to make paging in uitableview with call api ios? – Facebook api

how to make paging(load more data like facebook) in UITableView with call api?
Code:-

-(void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    CGFloat height = scrollView.frame.size.height;

    CGFloat contentYoffset = scrollView.contentOffset.y;

    CGFloat distanceFromBottom = scrollView.contentSize.height - contentYoffset;

    if(distanceFromBottom < height)
    {

        [self fetchNewsFeeds:[filteredArray count]+1 withLimit:20];

        NSLog(@"end of the table");
    }
}

scroll upto the content height after not call api

Tags:

4

Answers


  1. 0

    Store response data in a NSArray and then add to a NSMutableArray

    NSArray *resObj = [NSArray alloc] init];
NSMutableArray *aMutArray = [NSMutableArray alloc] init];
[aMutArray addObject: resObj];

    //check for last index of tableview
    write this code in cellForItemAtIndexPath

     if(lastIndex)
    {
         // show load more button
    }
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  2. 0

    Take Two Sections : The rows in the first section contains items which you want to display and the second section contains one row whose cell has a UIActivityIndicator.

    Then implement the given delegate method :

    func collectionView(_ collectionView: UICollectionView, willDisplay cell: UICollectionViewCell, forItemAt indexPath: IndexPath) {

    if indexPath.section ==  1 {

        let footercell = cell as! ProductFooterCollectionViewCell
        footercell.loader.startAnimating()
        fetchSearchProducts()
     }             
}
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  3. 0

    Tableview Delegate when display cell this method call:

    - (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSInteger totalRow = [tableView numberOfRowsInSection:indexPath.section];//first get total rows in that section by current indexPath.
    if(indexPath.row == totalRow-1)
    {
        // Code...
    }
}

    Hope your problem solve.

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  4. 0

    You need to first find last row of your tableviewcell.

    Below is the code for finding last row:

        - (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
    {
        NSInteger totalNumberOfRows = [tableView numberOfRowsInSection:indexPath.section];

// isLoadMore flage is TRUE when there is more data available.
        if(indexPath.row == totalNumberOfRows-1 && isLoadMore)
        {
            // Code...
            // Here you need to check if there are some load more data is there from pervious web-service or not.
    // If there is load more then call web-service and another set of data.
        }
    }

    You can use AFNetworking to get call your web-service.

    Hope you get logic 🙂

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