如何从图库中获取所有照片 [英] How to fetch all photos from library

问题描述

下面显示的代码是我已经尝试过的代码.我希望实现的是从设备中获取所有照片.目前仅获取了其中一些.如何修改代码以加载所有图像来自设备?

The code shown below is what i've tried already.What I wish to achieve is to fetch all the photos from the device.Currently only a few are being fetched.How to modify the code so as to load all the images from device?

let fetchOptions = PHFetchOptions()

let collection:PHFetchResult = PHAssetCollection.fetchAssetCollectionsWithType(.Moment, subtype: .Any, options: fetchOptions)

if let first_Obj:AnyObject = collection.firstObject
{
    self.assetCollection = first_Obj as! PHAssetCollection
}

推荐答案

更新了iOS 10及以上版本David的答案. Swift 4.x/3.x :

Updated David's answer for iOS 10+ & Swift 4.x/3.x:

从设备请求访问照片的权限:

将以下值添加到您的info.plist

隐私-图片库使用说明

Privacy - Photo Library Usage Description

并提供显示给用户的字符串.

And provide a string that is shown to the user.

请求所有图像:

PHPhotoLibrary.requestAuthorization { status in
    switch status {
    case .authorized:
        let fetchOptions = PHFetchOptions()
        let allPhotos = PHAsset.fetchAssets(with: .image, options: fetchOptions)
        print("Found \(allPhotos.count) assets")
    case .denied, .restricted:
        print("Not allowed")
    case .notDetermined:
        // Should not see this when requesting
        print("Not determined yet")
    }
}

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