獲取所有相冊的名稱和圖片

  func getAllAlbumInformation() -> [[PHFetchResult]]{
    var allSmartAlbums = [PHFetchResult]()
    //  所有圖片
    let allOptions = PHFetchOptions()
    //  時間排序
    allOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: true)]
    let allPhotos = PHAsset.fetchAssetsWithOptions(allOptions)
    allSmartAlbums.append(allPhotos)
  
    let smartAlbums:PHFetchResult = PHAssetCollection.fetchAssetCollectionsWithType(PHAssetCollectionType.SmartAlbum, subtype: PHAssetCollectionSubtype.AlbumRegular, options: nil)
    //  智能相冊---最近添加
    let collection = smartAlbums.objectAtIndex(SmartAlbumsType.RecentlyAdded.hashValue) as! PHAssetCollection
    let recentely = PHAsset.fetchAssetsInAssetCollection(collection, options: nil)
    allSmartAlbums.append(recentely)
  
    //  智能相冊---屏幕截圖
    let screenshot = smartAlbums.objectAtIndex(SmartAlbumsType.Screenshots.hashValue) as! PHAssetCollection
    let screenshotResult = PHAsset.fetchAssetsInAssetCollection(screenshot, options: nil)
    allSmartAlbums.append(screenshotResult)
  
    //  智能相冊---個人收藏
    let favorite = smartAlbums.objectAtIndex(SmartAlbumsType.Favorites.hashValue) as! PHAssetCollection
    let favoriteResult = PHAsset.fetchAssetsInAssetCollection(favorite, options: nil)
    allSmartAlbums.append(favoriteResult)
  
    //  個人自定義相冊
    let userDeterminAlbums = PHCollectionList.fetchTopLevelUserCollectionsWithOptions(nil)

    let allAlbums = [allSmartAlbums,[userDeterminAlbums]]

    PHPhotoLibrary.sharedPhotoLibrary().registerChangeObserver(self)
  
    return allAlbums
 }

通過上面的方法獲取了所有的相冊分類和圖片,下面解析這個圖片

  let all = getAllAlbumInformation()
  let singleAsset = all[0][0][8] as! PHAsset
  
  let options = PHImageRequestOptions()
  // deliveryMode 控制獲取的圖像的質(zhì)量
  options.deliveryMode = .HighQualityFormat
  //networkAccessAllowed是否允許網(wǎng)絡(luò)請求,可以從icloud獲取更加清晰的圖像
  options.networkAccessAllowed = true
  options.progressHandler = { (progress, error, stop, info) in
     //可以控制進度條
     print(progress)
  }

  //resizeMode 設(shè)置為.Exact 則返回圖像必須和目標(biāo)大小相匹配，并且圖像質(zhì)量也為高質(zhì)量圖像，而設(shè)置為 .Fast 則請求的效率更高，但返回的圖像可能和目標(biāo)大小不一樣并且質(zhì)量較低。
  //options 的 synchronous 屬性惠拭，默認為 NO,同步操作。注意：當(dāng) synchronous 設(shè)為 true 時，deliveryMode 屬性就會被忽略沃疮，并被當(dāng)作 .HighQualityFormat 來處理。
  //normalizedCropRect 設(shè)置裁剪大小 如CGRect(origin: CGPoint(x: 0,y: 0), size: CGSize(width: 200,height: 200))
  
  PHImageManager.defaultManager().requestImageForAsset(singleAsset, targetSize: PHImageManagerMaximumSize,contentMode: PHImageContentMode.AspectFill, options: options, resultHandler: { (result, info) in
    //result 是 拿到的UIImage
  })

上面代碼有什么不正確的地方,請在下方留言告訴我.如果我的文章對您有所幫助,我會非常高興!