如何从自定义相册获取所有图片 - swift

Question

如何取回所有图片来自自定义相册？

var fetchOptions = PHFetchOptions() 
fetchOptions.sortDescriptors = [NSSortDescriptor(key:"creationDate", ascending: false)] 
fetchOptions.predicate = NSPredicate(format: "mediaType = %d", PHAssetMediaType.Image.rawValue) 
let allImages:PHFetchResult = PHAsset.fetchKeyAssetsInAssetCollection(albumList[index].collection, options: fetchOptions) 

此代码块仅提取其中的几个。 谢谢。

- >albumList[index].collection的类型是PHAssetCollection

Answer 1

使用这个答案https://stackoverflow.com/a/28904792/4795651编辑一点点自己。

import Photos 


func FetchCustomAlbumPhotos() 
{ 
    var albumName = "SwiftAlbum" 
    var assetCollection = PHAssetCollection() 
    var albumFound = Bool() 
    var photoAssets = PHFetchResult() 

    let fetchOptions = PHFetchOptions() 
    fetchOptions.predicate = NSPredicate(format: "title = %@", albumName) 
    let collection:PHFetchResult = PHAssetCollection.fetchAssetCollectionsWithType(.Album, subtype: .Any, options: fetchOptions) 

    if let first_Obj:AnyObject = collection.firstObject{ 
     //found the album 
     assetCollection = collection.firstObject as! PHAssetCollection 
     albumFound = true 
    } 
    else { albumFound = false } 
    var i = collection.count 
    photoAssets = PHAsset.fetchAssetsInAssetCollection(assetCollection, options: nil) 
    let imageManager = PHCachingImageManager() 

    //  let imageManager = PHImageManager.defaultManager() 

    photoAssets.enumerateObjectsUsingBlock{(object: AnyObject!, 
     count: Int, 
     stop: UnsafeMutablePointer<ObjCBool>) in 

     if object is PHAsset{ 
      let asset = object as! PHAsset 
      print("Inside If object is PHAsset, This is number 1") 

      let imageSize = CGSize(width: asset.pixelWidth, 
       height: asset.pixelHeight) 

      /* For faster performance, and maybe degraded image */ 
      let options = PHImageRequestOptions() 
      options.deliveryMode = .FastFormat 
      options.synchronous = true 

      imageManager.requestImageForAsset(asset, 
       targetSize: imageSize, 
       contentMode: .AspectFill, 
       options: options, 
       resultHandler: { 
        (image, info) -> Void in 
        self.photo = image! 
        /* The image is now available to us */ 
        self.addImgToArray(self.photo) 
        print("enum for image, This is number 2") 

      }) 

     } 
    } 
} 

func addImgToArray(uploadImage:UIImage) 
{ 
    self.images.append(uploadImage) 

}