116 lines
3.5 KiB
Swift
116 lines
3.5 KiB
Swift
import Foundation
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import UIKit
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/// Brownfield 运行时启动失败时抛出的错误。
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public enum DuooomiBleRuntimeError: Error, LocalizedError {
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case hostManagerUnavailable
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case reactNativeViewUnavailable
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public var errorDescription: String? {
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switch self {
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case .hostManagerUnavailable:
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return "Unable to locate ReactNativeHostManager. Make sure the brownfield framework is linked correctly."
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case .reactNativeViewUnavailable:
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return "Unable to create ReactNativeView automatically. Pass createReactNativeView when starting the runtime."
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}
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}
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}
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/// 负责在宿主视图层中挂载隐藏的 RN 容器并启动 JS 运行时。
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public final class DuooomiBleRuntime {
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/// 供宿主全局复用的单例实例。
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public static let shared = DuooomiBleRuntime()
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private weak var mountedView: UIView?
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private weak var containerView: UIView?
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private init() {}
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/// 在指定容器中启动 Brownfield 运行时。
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///
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/// - Parameters:
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/// - containerView: 用于挂载隐藏 React Native 视图的宿主容器。
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/// - initializeHost: 可选的宿主初始化逻辑；若不传则尝试自动初始化。
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/// - createReactNativeView: 可选的 RN View 构造逻辑；若不传则尝试自动创建。
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/// - Throws: `DuooomiBleRuntimeError`。
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public func start(
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in containerView: UIView,
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initializeHost: (() -> Void)? = nil,
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createReactNativeView: (() -> UIView)? = nil
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) throws {
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if mountedView != nil {
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return
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}
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if let initializeHost {
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initializeHost()
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} else {
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try autoInitializeHostManager()
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}
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let reactNativeView = createReactNativeView?() ?? try autoCreateReactNativeView()
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reactNativeView.isHidden = true
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reactNativeView.isUserInteractionEnabled = false
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reactNativeView.frame = CGRect(x: 0, y: 0, width: 1, height: 1)
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reactNativeView.accessibilityElementsHidden = true
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containerView.addSubview(reactNativeView)
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self.containerView = containerView
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self.mountedView = reactNativeView
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DuooomiBleManager.shared.start()
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}
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/// 停止运行时并移除已挂载的隐藏 RN 视图。
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public func stop() {
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DuooomiBleManager.shared.stop()
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mountedView?.removeFromSuperview()
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mountedView = nil
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containerView = nil
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}
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private func autoInitializeHostManager() throws {
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let possibleClassNames = [
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"ReactNativeHostManager",
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"DuooomiBleSDK.ReactNativeHostManager",
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]
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for className in possibleClassNames {
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guard let managerClass = NSClassFromString(className) as? NSObject.Type else {
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continue
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}
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let sharedSelector = NSSelectorFromString("shared")
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let initializeSelector = NSSelectorFromString("initialize")
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let managerObject = (managerClass as AnyObject).perform(sharedSelector)?.takeUnretainedValue() as? NSObject
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if let managerObject, managerObject.responds(to: initializeSelector) {
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managerObject.perform(initializeSelector)
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return
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}
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}
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throw DuooomiBleRuntimeError.hostManagerUnavailable
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}
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private func autoCreateReactNativeView() throws -> UIView {
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let possibleClassNames = [
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"ReactNativeView",
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"DuooomiBleSDK.ReactNativeView",
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]
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for className in possibleClassNames {
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guard let viewClass = NSClassFromString(className) as? NSObject.Type else {
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continue
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}
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if let view = viewClass.init() as? UIView {
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return view
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}
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}
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throw DuooomiBleRuntimeError.reactNativeViewUnavailable
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}
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}
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