38 lines
1.1 KiB
Swift
38 lines
1.1 KiB
Swift
//
|
|
// PhotoLibrarySaver.swift
|
|
// suixinkan
|
|
//
|
|
|
|
import Photos
|
|
import UIKit
|
|
|
|
/// 将图片保存到系统相册，供收款二维码保存使用。
|
|
enum PhotoLibrarySaver {
|
|
|
|
/// 请求写入权限并将图片保存到相册。
|
|
static func saveImage(_ image: UIImage) async -> Bool {
|
|
let status = await requestAuthorizationIfNeeded()
|
|
guard status == .authorized || status == .limited else {
|
|
return false
|
|
}
|
|
|
|
return await withCheckedContinuation { continuation in
|
|
PHPhotoLibrary.shared().performChanges({
|
|
PHAssetChangeRequest.creationRequestForAsset(from: image)
|
|
}, completionHandler: { success, _ in
|
|
continuation.resume(returning: success)
|
|
})
|
|
}
|
|
}
|
|
|
|
private static func requestAuthorizationIfNeeded() async -> PHAuthorizationStatus {
|
|
let current = PHPhotoLibrary.authorizationStatus(for: .addOnly)
|
|
switch current {
|
|
case .notDetermined:
|
|
return await PHPhotoLibrary.requestAuthorization(for: .addOnly)
|
|
default:
|
|
return current
|
|
}
|
|
}
|
|
}
|