ios - 一个 View 中的多个UICollectionView更新第二个UICollectionView数据

Question

我想像图像一样设计。我使用两个UICollectionView进行设计。但是在快速单击UICollectionview行后，我无法更新第二个UICollectionView数据。我从不认为这是正确的方法。请提出任何建议。我需要使用Objective-C。



我的代码:

- (NSInteger)collectionView:(UICollectionView *)view numberOfItemsInSection:(NSInteger)section
{
    if (view.tag == 1) {
        return 20;//SelfiThemeIm;age.count
    } else {
        return 15;
    }
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)cv cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    if (cv.tag == 0) {
        TopCell *cell = [cv dequeueReusableCellWithReuseIdentifier:@"TopCell" forIndexPath:indexPath];
        NSData * imageData = [[NSData alloc] initWithContentsOfURL: [NSURL URLWithString: SelfiThemeImage[indexPath.row]]];
        cell.imageView.image  = [UIImage imageWithData: imageData];

        return cell;
    } else {
        BottomCell *cell = [cv dequeueReusableCellWithReuseIdentifier:@"BottomCell" forIndexPath:indexPath];

        NSData * imageData = [[NSData alloc] initWithContentsOfURL: [NSURL URLWithString: SelfiThemePhysicalFileName[indexPath.row]]];
        cell.imageView.image  = [UIImage imageWithData: imageData];

        return cell;
    }
}

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
    NSString *ThemeURL;

    if (collectionView.tag == 1) {
        ThemeURL = @"http://wap.shabox.mobi/sticker_app_server/content.aspx?catid=";
        ThemeURL =[ThemeURL stringByAppendingString:[SelfiThemeImageContentCode objectAtIndex:indexPath.row]];

        BottomCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"BottomCell" forIndexPath:indexPath];
        AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
        [manager GET:ThemeURL
          parameters:nil
             success:^(AFHTTPRequestOperation *operation, id responseObject) {
                 NSString *array= [responseObject objectForKey:@"stickers"];

                 self.selfidata = array;

                 // NSLog(@"JSON responce Selfi: %@",     self.selfidata);

                 for(int i=0; i<=self.selfidata.count-1; i++){
                     NSString *PhysicalFileName = @"http://wap.shabox.mobi/CMS/content/graphics/Stickers/D200x200/";
                     PhysicalFileName =[PhysicalFileName stringByAppendingString:[[self.selfidata objectAtIndex:i]objectForKey:@"PhysicalFileName"]];
                     PhysicalFileName =[PhysicalFileName stringByAppendingString:@".png"];

                     [SelfiThemePhysicalFileName addObject:[NSString stringWithFormat:PhysicalFileName]];
                     NSLog(@"PhysicalFileName Array - %@", PhysicalFileName);
                 }

                 NSLog(@"SelfiThemePhysicalFileName Array - %@", SelfiThemePhysicalFileName);

                 NSData * imageData = [[NSData alloc] initWithContentsOfURL: [NSURL URLWithString: SelfiThemePhysicalFileName[indexPath.row]]];
                 cell.imageView.image  = [UIImage imageWithData: imageData];
             } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
                 NSLog(@"Error: %@", error);
             }];
    }else{
    }
}

Answer 1

- (NSInteger)collectionView:(UICollectionView *)view numberOfItemsInSection:(NSInteger)section
{
    if (view.tag == 1) {
        return SelfiThemeImage.count;
    } else {
        return SelfiThemePhysicalFileName.count;
    }
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)cv cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    if (cv.tag == 0) {
        TopCell *cell = [cv dequeueReusableCellWithReuseIdentifier:@"TopCell" forIndexPath:indexPath];
        NSData * imageData = [[NSData alloc] initWithContentsOfURL: [NSURL URLWithString: SelfiThemeImage[indexPath.row]]];
        cell.imageView.image  = [UIImage imageWithData: imageData];

        return cell;
    } else {
        BottomCell *cell = [cv dequeueReusableCellWithReuseIdentifier:@"BottomCell" forIndexPath:indexPath];

        NSData * imageData = [[NSData alloc] initWithContentsOfURL: [NSURL URLWithString: SelfiThemePhysicalFileName[indexPath.row]]];
        cell.imageView.image  = [UIImage imageWithData: imageData];

        return cell;
    }
}

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
    NSString *ThemeURL;

    if (collectionView.tag == 1) {
        ThemeURL = @"http://wap.shabox.mobi/sticker_app_server/content.aspx?catid=";
        ThemeURL =[ThemeURL stringByAppendingString:[SelfiThemeImageContentCode objectAtIndex:indexPath.row]];

        BottomCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"BottomCell" forIndexPath:indexPath];
        AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
        [manager GET:ThemeURL
          parameters:nil
             success:^(AFHTTPRequestOperation *operation, id responseObject) {
                 NSString *array= [responseObject objectForKey:@"stickers"];

                 self.selfidata = array;

                 // NSLog(@"JSON responce Selfi: %@",     self.selfidata);

                 for(int i=0; i<=self.selfidata.count-1; i++){
                     NSString *PhysicalFileName = @"http://wap.shabox.mobi/CMS/content/graphics/Stickers/D200x200/";
                     PhysicalFileName =[PhysicalFileName stringByAppendingString:[[self.selfidata objectAtIndex:i]objectForKey:@"PhysicalFileName"]];
                     PhysicalFileName =[PhysicalFileName stringByAppendingString:@".png"];

                     [SelfiThemePhysicalFileName addObject:[NSString stringWithFormat:PhysicalFileName]];
                     NSLog(@"PhysicalFileName Array - %@", PhysicalFileName);
                 }

                 NSLog(@"SelfiThemePhysicalFileName Array - %@", SelfiThemePhysicalFileName);

                [self.myCollectionView reloadData];
             } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
                 NSLog(@"Error: %@", error);
             }];
    }else{
    }
}

我对您的代码进行了更改，只是将其替换为您的代码。

编码愉快。投赞成票

谢谢。