将代码从 Swift 2 更改为 swift 4

Question

我是 Swift 的新人，我需要你的帮助。

我正在编写教程 swift 2 中的代码，我想在 swift 4 中编写代码。

    let imgManager = PHImageManager.default()
    let requestOptions = PHImageManager()
    requestOptions.synchronous = true  //error:Value of type 'PHImageManager' has no member 'synchronous'
    requestOptions.deliveryMode = .highQualityFormat   // error:Value of type 'PHImageManager' has no member 'deliveryMode'

Answer 1

应该是这样的,

let imgManager = PHImageManager.default()
let requestOptions = PHImageRequestOptions()
requestOptions.isSynchronous = true
requestOptions.deliveryMode = .highQualityFormat

requestoptions 是 PHImageRequestOptions() 不是 PHImageManager()

请详细阅读 PHImageManager apple class reference

将代码从 Swift 2 更改为 swift 4

Change code from Swift 2 to swift 4

ios

swift

swift2

swift4