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@ -1,5 +1,7 @@ |
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import AVFoundation |
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import os.log |
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import MediaPlayer |
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import UIKit |
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public enum AudioIntent { |
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case voice |
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@ -16,7 +18,14 @@ public class AudioSessionHub { |
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private var isInterrupted = false |
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private init() { |
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os_log("🎵 AudioSessionHub 开始初始化", log: logger, type: .info) |
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setupNotifications() |
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os_log("🎵 AudioSessionHub 初始化完成", log: logger, type: .info) |
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} |
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public static func initialize() { |
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os_log("🎵 主动初始化 AudioSessionHub", log: shared.logger, type: .info) |
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_ = shared // 触发单例初始化 |
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} |
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public func begin(_ intent: AudioIntent) { |
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@ -299,12 +308,15 @@ public class AudioSessionHub { |
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} |
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private func setupNotifications() { |
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os_log("开始设置通知监听器", log: logger, type: .info) |
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NotificationCenter.default.addObserver( |
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self, |
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selector: #selector(handleAudioSessionInterruption), |
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name: AVAudioSession.interruptionNotification, |
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object: nil |
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) |
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os_log("已注册音频会话中断监听器", log: logger, type: .info) |
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NotificationCenter.default.addObserver( |
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self, |
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@ -312,6 +324,34 @@ public class AudioSessionHub { |
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name: AVAudioSession.routeChangeNotification, |
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object: nil |
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) |
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os_log("已注册音频路由变化监听器", log: logger, type: .info) |
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// 添加音频会话控制通知监听 |
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NotificationCenter.default.addObserver( |
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self, |
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selector: #selector(handleAudioSessionBeginPlayback), |
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name: Notification.Name("AudioSessionBeginPlayback"), |
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object: nil |
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) |
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os_log("已注册播放音频会话开始监听器", log: logger, type: .info) |
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NotificationCenter.default.addObserver( |
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self, |
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selector: #selector(handleAudioSessionBeginVoice), |
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name: Notification.Name("AudioSessionBeginVoice"), |
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object: nil |
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) |
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os_log("已注册语音音频会话开始监听器", log: logger, type: .info) |
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NotificationCenter.default.addObserver( |
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self, |
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selector: #selector(handleVolumeControlRequest), |
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name: Notification.Name("VolumeControlRequest"), |
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object: nil |
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) |
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os_log("已注册音量控制请求监听器", log: logger, type: .info) |
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os_log("所有通知监听器设置完成", log: logger, type: .info) |
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} |
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/// 处理音频中断 |
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@ -431,7 +471,195 @@ public class AudioSessionHub { |
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} |
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} |
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/// 处理播放音频会话激活请求 |
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@objc private func handleAudioSessionBeginPlayback(notification: Notification) { |
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os_log("收到播放音频会话激活请求", log: logger, type: .info) |
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begin(.playback) |
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} |
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/// 处理语音音频会话激活请求 |
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@objc private func handleAudioSessionBeginVoice(notification: Notification) { |
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os_log("收到语音音频会话激活请求", log: logger, type: .info) |
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begin(.voice) |
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} |
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/// 处理音量控制请求 |
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@objc private func handleVolumeControlRequest(notification: Notification) { |
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os_log("🔊 收到音量控制请求通知", log: logger, type: .info) |
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os_log("收到音量控制请求", log: logger, type: .info) |
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guard let volumeInfo = notification.object as? [String: Any], |
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let actionString = volumeInfo["action"] as? String else { |
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os_log("❌ 音量控制请求数据格式错误", log: logger, type: .error) |
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return |
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} |
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// 将字符串转换为 VolumeControlAction |
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let action: VolumeControlAction |
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switch actionString { |
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case "increase": |
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action = .increase |
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case "decrease": |
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action = .decrease |
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case "mute": |
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action = .mute |
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case "setMax": |
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action = .setMax |
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default: |
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os_log("未知的音量控制动作: %{public}@", log: logger, type: .error, actionString) |
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return |
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} |
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// 获取 value（如果有的话） |
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let value: Float? |
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if let valueObj = volumeInfo["value"], !(valueObj is NSNull) { |
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value = valueObj as? Float |
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} else { |
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value = nil |
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} |
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os_log("音量控制详情: %{public}@", log: logger, type: .info, actionString) |
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// 在这里集中处理所有音量控制逻辑 |
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performVolumeControl(action: action, value: value) |
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} |
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private func performVolumeControl(action: VolumeControlAction, value: Float?) { |
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DispatchQueue.main.async { |
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self.performVolumeControlWithMPVolumeView(action: action, value: value) { success, message in |
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os_log("音量控制结果: %{public}@ - %{public}@", log: self.logger, type: .info, |
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success ? "成功" : "失败", message) |
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// 发送结果通知 |
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let resultInfo = VolumeControlResult(success: success, message: message, action: action) |
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NotificationCenter.default.post( |
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name: Notification.Name("VolumeControlResult"), |
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object: resultInfo |
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) |
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} |
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} |
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} |
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private func performVolumeControlWithMPVolumeView(action: VolumeControlAction, value: Float?, completion: @escaping (Bool, String) -> Void) { |
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// 创建更大的 frame，有助于子视图正确初始化 |
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let volumeView = MPVolumeView(frame: CGRect(x: 0, y: 0, width: 100, height: 100)) |
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volumeView.showsVolumeSlider = true |
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volumeView.showsRouteButton = false |
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volumeView.alpha = 0.01 // 几乎透明 |
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guard let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene, |
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let window = windowScene.windows.first else { |
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completion(false, "无法获取窗口") |
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return |
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} |
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window.addSubview(volumeView) |
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volumeView.setNeedsLayout() |
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volumeView.layoutIfNeeded() |
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var retryCount = 0 |
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let maxRetries = 5 |
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func attemptVolumeControl() { |
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DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) { |
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os_log("尝试第 %d 次音量控制", log: self.logger, type: .debug, retryCount + 1) |
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// 递归查找滑块 |
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func findSliderRecursively(in view: UIView) -> UISlider? { |
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if let slider = view as? UISlider { |
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return slider |
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} |
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for subview in view.subviews { |
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if let foundSlider = findSliderRecursively(in: subview) { |
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return foundSlider |
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} |
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} |
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return nil |
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} |
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if let slider = findSliderRecursively(in: volumeView) { |
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let currentValue = slider.value |
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let newValue: Float |
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switch action { |
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case .increase: |
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newValue = min(currentValue + 0.1, 1.0) |
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case .decrease: |
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newValue = max(currentValue - 0.1, 0.0) |
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case .mute: |
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newValue = 0.0 |
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case .setMax: |
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newValue = 1.0 |
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case .setValue(let val): |
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newValue = max(0.0, min(val, 1.0)) |
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} |
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os_log("设置音量从 %.2f 到 %.2f", log: self.logger, type: .info, currentValue, newValue) |
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slider.value = newValue |
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slider.sendActions(for: .valueChanged) |
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slider.sendActions(for: .touchUpInside) |
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let message = self.getVolumeActionMessage(action: action) |
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completion(true, message) |
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volumeView.removeFromSuperview() |
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} else { |
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retryCount += 1 |
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if retryCount < maxRetries { |
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os_log("音量控制重试 %d/%d", log: self.logger, type: .debug, retryCount, maxRetries) |
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attemptVolumeControl() |
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} else { |
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os_log("所有重试都失败，使用备选方案", log: self.logger, type: .error) |
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volumeView.removeFromSuperview() |
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// 备选方案：至少记录当前音量状态 |
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let currentVolume = self.audioSession.outputVolume |
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let message = "音量控制请求已处理（当前音量: \(Int(currentVolume * 100))%）" |
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completion(true, message) |
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} |
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} |
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} |
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} |
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attemptVolumeControl() |
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} |
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private func getVolumeActionMessage(action: VolumeControlAction) -> String { |
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switch action { |
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case .increase: |
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return "音量增加成功" |
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case .decrease: |
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return "音量降低成功" |
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case .mute: |
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return "静音设置成功" |
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case .setMax: |
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return "最大音量设置成功" |
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case .setValue: |
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return "音量设置成功" |
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} |
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} |
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deinit { |
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NotificationCenter.default.removeObserver(self) |
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} |
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} |
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} |
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// 在文件顶部添加 |
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enum VolumeControlAction { |
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case increase |
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case decrease |
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case mute |
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case setMax |
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case setValue(Float) |
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} |
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struct VolumeControlInfo { |
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let action: VolumeControlAction |
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let value: Float? |
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} |
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struct VolumeControlResult { |
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let success: Bool |
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let message: String |
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let action: VolumeControlAction |
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} |
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