将相机胶卷照片添加到自定义集合视图中 [英] Get Camera Roll photos to a Custom Collection View

问题描述

我有一个带细胞的自定义集合视图。这是我的CollectionView代码。

I have an Custom Collection View with Cells. Here is my CollectionView code.

- (UICollectionViewCell *)collectionView:(UICollectionView *)cv cellForItemAtIndexPath:(NSIndexPath *)indexPath;
{
    Cell *cell = [cv dequeueReusableCellWithReuseIdentifier:@"MY_CELL" forIndexPath:indexPath];

    return cell;
}

我想从Camera Roll&显示在这些单元格中。如何在此单元格中查看相机胶卷图像？我应该使用数组来存储图像的名称和放大器吗？然后在Cell中显示它们？
任何人都可以给我一个带代码的解决方案。

I want to get images from Camera Roll & display in these cells. How can I get Camera Roll images to view in this Cell? Should I use an array to store names of the images & then show them in the Cell? Can anyone please give me a solution with a code.

推荐答案

你可以获得专辑和照片/视频资产使用< AssetsLibrary / AssetsLibrary.h> 框架：

You can get the Albums and Photo/video assets using <AssetsLibrary/AssetsLibrary.h> framework :

-(void)getAlbum
{
   library = [[ALAssetsLibrary alloc] init];
ALAssetsLibraryGroupsEnumerationResultsBlock listGroupBlock = ^(ALAssetsGroup *group, BOOL *stop) {

        if (group)
       {
            [_albumsArray addObject:group];
        } else {
            [self.tableView performSelectorOnMainThread:@selector(reloadData) withObject:nil waitUntilDone:NO];
        }
    };

   [library enumerateGroupsWithTypes:ALAssetsGroupAll usingBlock:listGroupBlock failureBlock:failureBlock]
}

在选择相册时，您将通过以下方式获得照片/视频

While selecting album you will get photos/video by below method

-(void)getAssets
{
    ALAssetsGroupEnumerationResultsBlock assetsEnumerationBlock = ^(ALAsset * result, NSUInteger index, BOOL *stop) {

        if (result)
        {

        }
        else
        {
            [self.tableView reloadData];
        }
    };

    [_assetGroup setAssetsFilter:[ALAssetsFilter allAssets]];

    [_assetGroup enumerateAssetsUsingBlock:assetsEnumerationBlock];
}

请参考此链接了解更多信息和示例与表格视图。您可以用 UICollectionView替换表视图

Please refer this link for more info and example with table view. Alos you can replace table view with your UICollectionView

谢谢！

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