joywayerandClaude Opus 4.7
39c1b5164d
移植 msext DouyinShareManager.m:201-269 shareImageToDouyin 完整流程到 Swift。
新增基础设施（Phase 4.F 截图 / 远端图也共用）：
Source/Share/ImageProvider.swift：
- captureScreenshot() throws -> UIImage：UIGraphicsImageRenderer 截
keyWindow（含状态栏 + letterbox 黑边 + WebView），与 msext
FuncPublic.getImageWithFullScreenshot 等价
- downloadRemote(_:) async throws -> UIImage：URLSession.data(from:)
下载远端 URL → UIImage 解码
- ImageProviderError 错误分类（noKeyWindow / downloadFailed / decodeFailed /
badURL）
Source/Share/PhotoLibrarySaver.swift：
- save(_:) async throws：使用 PHAccessLevel.addOnly（iOS 14+ 推荐，仅写
相册不读，弹窗更友好）+ PHAssetChangeRequest.creationRequestForAsset
- 自动处理权限三态（authorized/notDetermined 请求 + denied/restricted 抛错）
DouyinShare.share 完整实现：
- 拿图片源：
* type == "2" 截图 / type == "1" 链接（退化为当前屏截屏，msext 行为）
→ ImageProvider.captureScreenshot
* type == 其它（远端图 URL）→ ImageProvider.downloadRemote(webpageUrl)
- PhotoLibrarySaver.save 保存到相册（含 .permissionDenied 错误回 .failed）
- UIPasteboard.general.image = image 兜底（抖音可能从剪贴板读图）
- 按 msext 顺序尝试 4 个 URL Scheme：
snssdk1128://camera / publish / share/image / 基础 scheme
canOpenURL 命中即 await UIApplication.open + 调起即 success
- 全部失败返回 .failed("所有抖音 URL Scheme 都调起失败")
Info.plist 加 NSPhotoLibraryAddUsageDescription（"需要将分享内容保存到
相册，以便您在抖音中选取分享"），addOnly 权限弹窗用此文案。
BuildProject 通过
Plan §5 Phase 4.4 勾选
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
95 lines
3.7 KiB
Swift
95 lines
3.7 KiB
Swift
//
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// DouyinShare.swift
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// ylgamehall
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//
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// 抖音分享 SharePlatform 实现（Phase 4.D 完整）。
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//
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// 移植 msext DouyinShareManager.m:201-269 shareImageToDouyin 流程：
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// 1. 拿图片源（type=2 → ImageProvider.captureScreenshot；其它 →
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// ImageProvider.downloadRemote）；type=1 链接 → 抖音不原生支持纯链接，
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// 退化为截屏分享（msext 行为：所有 H5 分享到抖音都走图片）
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// 2. PhotoLibrarySaver.save 保存到相册（addOnly 权限）
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// 3. UIPasteboard 兜底放图片数据，供抖音读取
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// 4. 按顺序尝试 snssdk1128://camera / publish / share/image / 基础 scheme，
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// canOpenURL 命中即调起
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// 5. 调起即视为 success（URL Scheme 单向无返回）
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//
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// **不依赖抖音 SDK**。
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//
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import UIKit
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import os.log
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@MainActor
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public final class DouyinShare: SharePlatform {
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public static let shared = DouyinShare()
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private static let log = Logger(subsystem: "ylgamehall", category: "DouyinShare")
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public let name = "Douyin"
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public var isInstalled: Bool {
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guard let url = URL(string: "snssdk1128://") else { return false }
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return UIApplication.shared.canOpenURL(url)
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}
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public init() {}
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public func share(_ content: ShareContent, scene: ShareScene) async -> ShareResult {
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guard isInstalled else { return .notInstalled(platform: name) }
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// 1. 拿图片源
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let image: UIImage
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do {
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switch content.type {
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case "2":
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image = try ImageProvider.captureScreenshot()
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case "1":
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// 抖音不支持纯链接分享，退化为当前屏截屏（msext 行为）
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Self.log.debug("DouyinShare: type=1 链接，退化为截屏分享")
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image = try ImageProvider.captureScreenshot()
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default:
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// type == 其它 → 远端图片 URL
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image = try await ImageProvider.downloadRemote(content.webpageUrl)
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}
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} catch {
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Self.log.error("DouyinShare: 获取图片失败 \(error.localizedDescription, privacy: .public)")
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return .failed(reason: "获取图片失败: \(error.localizedDescription)")
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}
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// 2. 保存到相册（含权限检查）
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do {
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try await PhotoLibrarySaver.save(image)
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} catch PhotoLibrarySaverError.permissionDenied {
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Self.log.warning("DouyinShare: 相册写入权限被拒")
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return .failed(reason: "相册写入权限被拒")
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} catch {
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Self.log.error("DouyinShare: 保存相册失败 \(error.localizedDescription, privacy: .public)")
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return .failed(reason: "保存相册失败: \(error.localizedDescription)")
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}
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// 3. 同时放剪贴板兜底（msext 行为：抖音从剪贴板读图）
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UIPasteboard.general.image = image
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// 4. 按 msext 顺序尝试多个 URL Scheme
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let schemes = [
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"snssdk1128://camera", // 抖音拍摄界面
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"snssdk1128://publish", // 发布界面
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"snssdk1128://share/image", // 图片分享（可能已废弃但保留）
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"snssdk1128://" // 兜底基础 scheme
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]
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for schemeString in schemes {
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guard let url = URL(string: schemeString),
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UIApplication.shared.canOpenURL(url)
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else { continue }
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Self.log.debug("DouyinShare open: \(schemeString, privacy: .public)")
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let opened = await UIApplication.shared.open(url)
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if opened { return .success }
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}
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return .failed(reason: "所有抖音 URL Scheme 都调起失败")
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}
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}
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