如何将我的url json数据显示到集合视图 [英] How to show my url json data to collection view

问题描述

我从具有授权标头的一个URL中获取数据，然后转换为json.

I have get data from one url with authorized header and i convert to json.

在我的json中，我只有pdf文件.但我不想显示pdf文件.我想显示文件名(例如:document1.pdf，document2.pdf).我还有3个部分-每个部分包含10个文档.所以我需要显示文件名称.

In my json i am having only pdf file. But i don't want to show pdf file. I want to show the file name ( eg : document1.pdf, document2.pdf ).and also i am having 3 section - each contain 10 documents. So i need to show name of the document.

我看到了一些仅使用图像而不使用文档文件的教程.那么如何仅在集合视图中显示我的文档名称.

I saw some tutorials which using only image not document file. So how to show my document name alone to collection view.

还有一个问题.我需要解码以显示我的数据还是不想这样做?帮帮我.谢谢！！

One more question. does i need to decode to show my data or don't want to do that. Help me out.Thanks in advance !

推荐答案

    NSMutableArry *arrayPDFName  = [[NSMutableArray alloc]init];
    NSDictionary *jsonResults = [NSJSONSerialization JSONObjectWithData:returnData options:NSJSONReadingMutableContainers error:nil];
    NSDictionary *dictOriginal = [jsonResultsvalueForKey:@"original"];
    NSArray *arrayFiles = [[dictOriginal valueForKey:@"files"] copy];
    NSLog(@"The arrayFiles are - %@",arrayFiles);
    for(int i=0;i<[arrayFiles count];i++)
    {
        NSString *strCreatedTime = [NSString stringWithFormat:@"%@",[[arrayFiles objectAtIndex:i] valueForKey:@"created_time"]];
        NSString *strLastModifiedTime = [NSString stringWithFormat:@"%@",[[arrayFiles objectAtIndex:i] valueForKey:@"last_modified_time"]];
        NSString *strID = [NSString stringWithFormat:@"%@",[[arrayFiles objectAtIndex:i] valueForKey:@"id"]];
        NSString *strName = [NSString stringWithFormat:@"%@",[[arrayFiles objectAtIndex:i] valueForKey:@"name"]];

        NSLog(@"The created_time is - %@",strCreatedTime);
        NSLog(@"The last_modified_time is - %@",strLastModifiedTime);
        NSLog(@"The is is - %@",strID);
        NSLog(@"The name is - %@",strName);

        [arrayPDFName addObject:strName];
    }

}

在collectionview中，您需要使用上面的arrayPDFName(在collection view委托方法中)

in collectionview you need use the above arrayPDFName(in collection view delegates methods)

在CollectionView中显示数据

Showing data in CollectionView

- (void)viewDidLoad 
{
  [super viewDidLoad];
  [self getResponse];
  UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
  flowLayout.scrollDirection =  UICollectionViewScrollDirectionVertical;
  //Register the custom cell for collection view
  UINib *cellNib = [UINib nibWithNibName:@"CustomCell" bundle:nil];
  [collectionViewHorizontalVertical registerNib:cellNib forCellWithReuseIdentifier:@"cvCell"];
}

//Collection View Delegates method
-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
  return  1;
}

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

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
   static NSString *cellIdentifier = @"cvCell";
CustomCell *cell = (CustomCell *)[collectionView dequeueReusableCellWithReuseIdentifier:cellIdentifier forIndexPath:indexPath];
          //data for text
  cell.textField.text = [arrayPDFName objectAtIndex:indexPath.row];

           //OR Image

  cell.imgViewCollection.image = [UIImage imageNamed:[arrayPDFName objectAtIndex:indexPath.row]];

  return cell;
}

// If you want to set the cell height
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath 
{
  return CGSizeMake(200, 200); //Please give your required size
}

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