如何使用PromiseKit/Photos？

Question

如何使用 PromiseKit/Photos 任何示例？我找不到特别是照片的任何文档。

我已经像下面那样实现了并且我能够接收请求

_ = PHPhotoLibrary.requestAuthorization().then(execute: { (status) -> Void in print(status.rawValue) })

任何比上述实现更好的东西都会有所帮助。

Answer 1

你的方向是正确的，你的实现方式是正确的，你也可以查看下面的代码

http://promisekit.org/docs/

PHPhotoLibrary.requestAuthorization().then { authorized in
print(authorized)  // => true or false
}


PHPhotoLibrary.requestAuthorization().then { authorized -> Void in
guard authorized else { throw MyError.unauthorized }
// …
}.catch { error in
UIAlertView(/*…*/).show()
}

PHPhotoLibrary.requestAuthorization().then { authorized -> Promise in

guard authorized else { throw MyError.unauthorized }

// returning a promise in a `then` handler waits on that
// promise before continuing to the next handler
return CLLocationManager.promise()

// if the above promise fails, execution jumps to the catch below

}.then { location -> Void in

// if anything throws in this handler execution also jumps to the `catch`

}.catch { error in
switch error {
case MyError.unauthorized:
    //…
case is CLError:
    //…
}
}

如何使用PromiseKit/Photos？

How to use PromiseKit/Photos?

ios

swift

promisekit