iOS 判断PHAsset 是不是允许从icould下载图片

[[PHImageManager defaultManager] requestImageForAsset:selectedAsset targetSize:targetSize contentMode:contentMode options:options resultHandler:^(UIImage * _Nullable result, NSDictionary * _Nullable info) {
        if (   [info objectForKey:PHImageResultIsInCloudKey]){
          ///这是icloud
        }
    }];

/// 是否需要网络下载
/// @param asset 下载的图片
+ (BOOL)isNetworkAccessAllowed:(PHAsset *)asset{
    // asset是一个您想要为其获取信息的PHAsset对象
    NSArray *resourceArray = [PHAssetResource assetResourcesForAsset:asset];
    
    if (resourceArray.count >= 1){
        ///本地是否可用：NO 代表icould 图片
        // If this returns NO, then the asset is in iCloud and not saved locally yet
         return ![[resourceArray.firstObject valueForKey:@"locallyAvailable"] boolValue];
    }
    NSLog(@"asset 资源信息 resourceArray = %@", resourceArray);
    
    if ([[resourceArray.firstObject valueForKey:@"locallyAvailable"] boolValue] == NO){
        NSLog(@"图片 不在本地 isLocallayAvailable == NO");
    }else{
        NSLog(@"图片 在本地 isLocallayAvailable == YES");
    }
    return NO;
}