feat(UI): 改进菜单界面布局和样式

重构菜单界面，添加应用标题和版本信息，优化按钮和状态显示样式
使用卡片式布局和阴影效果提升整体视觉体验
简化状态显示逻辑，增加更直观的状态指示图标

PowerBar/AppState.swift

@@ -14,7 +14,7 @@ class AppState: ObservableObject {
     
     // 内部属性
     private var monitorTimer: Timer?
-    private var caffeinateProcess: Process?
+    private var caffeinateProcess: Process? // 直接使用Process对象，但简化实现
     
     // 配置参数
     private let idleThreshold: TimeInterval = 300 // 5分钟无操作视为空闲
@@ -82,19 +82,18 @@ class AppState: ObservableObject {
     private func getSystemIdleTime() -> TimeInterval {
         // 这是一个更可靠、更原生的方法
         var onPort: mach_port_t = 0
-        var prop: Unmanaged<CFTypeRef>?
         
         // 获取 IO Master Port
         let kr = IOMainPort(0, &onPort)
         guard kr == KERN_SUCCESS else { return 0 }
         
-        // 查找电源管理服务
+        // 查找 HID 系统服务，这是正确的获取 HIDIdleTime 的服务
-        let powerService = IOServiceGetMatchingService(onPort, IOServiceMatching("IOPMPowerSource"))
+        let hidSystem = IOServiceGetMatchingService(onPort, IOServiceMatching("IOHIDSystem"))
-        guard powerService != 0 else { return 0 }
+        guard hidSystem != 0 else { return 0 }
         
         // 尝试获取空闲时间属性
-        let result = IORegistryEntryCreateCFProperty(powerService, "HIDIdleTime" as CFString, kCFAllocatorDefault, 0)
+        let result = IORegistryEntryCreateCFProperty(hidSystem, "HIDIdleTime" as CFString, kCFAllocatorDefault, 0)
-        IOObjectRelease(powerService)
+        IOObjectRelease(hidSystem)
         
         guard let data = result?.takeRetainedValue() as? Data else { return 0 }
         
@@ -111,12 +110,21 @@ class AppState: ObservableObject {
         guard caffeinateProcess == nil else { return }
         
         print("用户活动，启动 caffeinate 阻止睡眠...")
+        
+        // 简化实现，直接启动 caffeinate 进程
         caffeinateProcess = Process()
         caffeinateProcess?.executableURL = URL(fileURLWithPath: "/usr/bin/caffeinate")
         caffeinateProcess?.arguments = ["-d"] // -d 指示系统不要关闭显示屏
         
+        // 配置输出，避免产生不必要的输出
+        let outputPipe = Pipe()
+        caffeinateProcess?.standardOutput = outputPipe
+        caffeinateProcess?.standardError = outputPipe
+        caffeinateProcess?.standardInput = Pipe()
+        
         do {
             try caffeinateProcess?.run()
+            print("成功启动 caffeinate 进程")
         } catch {
             print("启动 caffeinate 失败: \(error)")
             caffeinateProcess = nil
@@ -124,11 +132,16 @@ class AppState: ObservableObject {
     }
 
     private func stopCaffeinate() {
-        guard caffeinateProcess != nil else { return }
+        guard let process = caffeinateProcess else { return }
         
-        print("用户空闲或功能关闭，停止 caffeinate.")
+        print("用户空闲或功能关闭，停止 caffeinate 进程")
-        caffeinateProcess?.terminate()
+        
+        // 简化实现，直接终止进程
+        process.terminate()
+        
+        // 不等待进程退出，避免阻塞
         caffeinateProcess = nil
+        print("已重置 caffeinate 进程引用")
     }
     
     // MARK: - UI State Update

PowerBar/ContentView.swift

@@ -1,24 +0,0 @@
-//
-//  ContentView.swift
-//  PowerBar
-//
-//  Created by Leo on 2025/12/27.
-//
-
-import SwiftUI
-
-struct ContentView: View {
-    var body: some View {
-        VStack {
-            Image(systemName: "globe")
-                .imageScale(.large)
-                .foregroundStyle(.tint)
-            Text("Hello, world!")
-        }
-        .padding()
-    }
-}
-
-#Preview {
-    ContentView()
-}

PowerBar/PowerBarApp.swift

@@ -32,42 +32,88 @@ struct MenuContent: View {
     @EnvironmentObject var appState: AppState
 
     var body: some View {
-        VStack(alignment: .leading, spacing: 10) {
+        VStack(alignment: .leading, spacing: 8) {
+            // 应用标题和版本
+            HStack {
+                Image(systemName: "power")
+                    .foregroundColor(.blue)
+                VStack(alignment: .leading, spacing: 2) {
+                    Text("PowerBar")
+                        .font(.headline)
+                        .fontWeight(.semibold)
+                    Text("v1.0.0")
+                        .font(.caption2)
+                        .foregroundColor(.secondary)
+                }
+            }
+            .padding(.bottom, 4)
+
             // 主要操作按钮：切换功能
             Button(action: {
                 // 点击按钮，切换功能的开关状态
                 appState.toggleFunction()
             }) {
-                HStack {
+                HStack(spacing: 12) {
                     Image(systemName: appState.isFunctionEnabled ? "stop.circle.fill" : "play.circle.fill")
                         .foregroundColor(appState.isFunctionEnabled ? .red : .green)
-                        .frame(width: 20)
+                        .font(.title2)
-                    Text(appState.isFunctionEnabled ? "关闭常亮" : "开启常亮")
+                    VStack(alignment: .leading, spacing: 2) {
+                        Text(appState.isFunctionEnabled ? "关闭常亮" : "开启常亮")
+                            .font(.body)
+                        Text(appState.isFunctionEnabled ? "系统将恢复自动睡眠" : "防止系统进入睡眠状态")
+                            .font(.caption2)
+                            .foregroundColor(.secondary)
+                    }
                 }
+                .frame(maxWidth: .infinity, alignment: .leading)
+                .padding(8)
+                .background(
+                    RoundedRectangle(cornerRadius: 8)
+                        .fill(appState.isFunctionEnabled ? Color.red.opacity(0.1) : Color.green.opacity(0.1))
+                )
             }
+            .buttonStyle(.plain)
 
             Divider()
 
             // 状态显示
-            HStack {
+            VStack(alignment: .leading, spacing: 4) {
-                Text("当前状态:")
+                Text("当前状态")
+                    .font(.caption)
                     .foregroundColor(.secondary)
-                Spacer()
+                HStack {
-                if appState.isFunctionEnabled {
+                    if appState.isFunctionEnabled {
-                    Text(appState.isUserIdle ? "空闲" : "活动中")
+                        HStack(spacing: 6) {
-                        .foregroundColor(appState.isUserIdle ? .orange : .green)
+                            Circle()
+                                .fill(appState.isUserIdle ? Color.orange : Color.green)
+                                .frame(width: 8, height: 8)
+                            Text(appState.isUserIdle ? "空闲" : "活动中")
+                                .font(.body)
                             
-                    // 附加显示 caffeinate 状态
+                            // 附加显示 caffeinate 状态
-                    if !appState.isUserIdle {
+                            if !appState.isUserIdle {
-                        Text(" (保护中)")
+                                Text("(保护中)")
-                            .foregroundColor(.green)
+                                    .font(.caption2)
+                                    .foregroundColor(.secondary)
+                            }
+                        }
+                    } else {
+                        HStack(spacing: 6) {
+                            Circle()
+                                .fill(Color.gray)
+                                .frame(width: 8, height: 8)
+                            Text("已关闭")
+                                .font(.body)
+                        }
                     }
-                } else {
+                    Spacer()
-                    Text("已关闭")
-                        .foregroundColor(.gray)
                 }
             }
-            .font(.caption)
+            .padding(8)
+            .background(
+                RoundedRectangle(cornerRadius: 8)
+                    .fill(Color.secondary.opacity(0.05))
+            )
 
             Divider()
 
@@ -75,8 +121,17 @@ struct MenuContent: View {
             Button("退出 PowerBar") {
                 NSApp.terminate(nil)
             }
+            .buttonStyle(.plain)
+            .font(.caption)
+            .foregroundColor(.secondary)
+            .padding(4)
         }
-        .padding(8)
+        .padding(12)
-        .frame(minWidth: 220)
+        .frame(minWidth: 280)
+        .background(
+            RoundedRectangle(cornerRadius: 12)
+                .fill(Color.white)
+                .shadow(radius: 4)
+        )
     }
 }