Question

从Photolibrary中提取图像我们使用UIImagePickerViewController和UIImagePickerControllerSourceTypePhotoLibrary进入Photolibrary并获取图像，现在我的问题如何获取保存在我的photoLibary中的图像数。

是否允许我将图像计数显示在我的应用程序中。

Answer 1

是的，允许您使用以下方法获取所有图像： - 导入照片框架

#import <Photos/Photos.h>


-(void)getAllPhotosFromCamera
{
imageArray=[[NSArray alloc] init];
mutableArray =[[NSMutableArray alloc]init];

PHImageRequestOptions *requestOptions = [[PHImageRequestOptions alloc] init];
requestOptions.resizeMode   = PHImageRequestOptionsResizeModeFast;
requestOptions.deliveryMode = PHImageRequestOptionsDeliveryModeHighQualityFormat;
requestOptions.synchronous = true;
PHFetchResult *result = [PHAsset fetchAssetsWithMediaType:PHAssetMediaTypeImage options:nil];

NSLog(@"%d",(int)result.count);

PHImageManager *manager = [PHImageManager defaultManager];
NSMutableArray *images = [NSMutableArray arrayWithCapacity:[result count]];

// assets contains PHAsset objects.

__block UIImage *ima;
for (PHAsset *asset in result)
{
    // Do something with the asset

    [manager requestImageForAsset:asset
                       targetSize:PHImageManagerMaximumSize
                      contentMode:PHImageContentModeDefault
                          options:requestOptions
                    resultHandler:^void(UIImage *image, NSDictionary *info)
                    {
                        ima = image;

                        [images addObject:ima];
                    }];
}

imageArray = [images copy];
[_cView reloadData];
}

Answer 2

如果您想获得计数，那么使用照片框架，您可以获得这样的计数

PHFetchResult *allPhotosResult = [PHAsset fetchAssetsWithMediaType:PHAssetMediaTypeImage options:nil];
NSLog(@"count of All Photos from Moments in iOS8, or Camera Roll - %lu",(unsigned long)allPhotosResult.count);

也不要忘记导入Photos Framework

#import <Photos/Photos.h>

Answer 3

在这里，您可以获得所有图像数量。它也包括所有相册和相机胶卷图像。

__block NSInteger intTotalCount=0;
// Get all Album list...
PHFetchResult *userAlbums = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeAlbum subtype:PHAssetCollectionSubtypeAny options:nil];
[userAlbums enumerateObjectsUsingBlock:^(PHAssetCollection *collection, NSUInteger idx1, BOOL *stop) {
    PHFetchResult *assetsFetchResult = [PHAsset fetchAssetsInAssetCollection:collection options:nil];
    intTotalCount+=assetsFetchResult.count;
}];

// Get image count from Camera Roll
PHFetchOptions *allPhotosOptions = [PHFetchOptions new];
allPhotosOptions.predicate = [NSPredicate predicateWithFormat:@"mediaType == %d ",PHAssetMediaTypeImage];
PHFetchResult *allPhotosResult = [PHAsset fetchAssetsWithOptions:allPhotosOptions];
intTotalCount+=allPhotosResult.count;

NSLog(@"%d",intTotalCount);

如何获取照片库图像数量

3 个答案: