Refactoring UI

Platforms/Android/AndroidBackgroundServiceStarter.cs

@@ -0,0 +1,56 @@
+using Android.Content;
+using HeartRateMonitorAndroid.Services;
+using Application = Android.App.Application;
+namespace HeartRateMonitorAndroid.Platforms.Android
+{
+    /// <summary>
+    /// Android平台的后台服务启动器实现
+    /// </summary>
+    public class AndroidBackgroundServiceStarter : IBackgroundServiceStarter
+    {
+        public async Task StartServiceAsync()
+        {
+            try
+            {
+                var context = Platform.CurrentActivity?.ApplicationContext ?? Application.Context;
+                var intent = new Intent(context, typeof(HeartRateKeepAliveService));
+                context.StartForegroundService(intent);
+                await Task.CompletedTask;
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"AndroidBackgroundServiceStarter: 启动服务失败: {ex.Message}");
+                throw;
+            }
+        }
+
+        public async Task StopServiceAsync()
+        {
+            try
+            {
+                var context = Platform.CurrentActivity?.ApplicationContext ?? Application.Context;
+                var intent = new Intent(context, typeof(HeartRateKeepAliveService));
+                context.StopService(intent);
+                await Task.CompletedTask;
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"AndroidBackgroundServiceStarter: 停止服务失败: {ex.Message}");
+                throw;
+            }
+        }
+    }
+
+    /// <summary>
+    /// Android平台的服务助手实现
+    /// </summary>
+    public class AndroidServiceHelper : IServiceHelper
+    {
+        public IBackgroundServiceStarter BackgroundServiceStarter { get; }
+
+        public AndroidServiceHelper()
+        {
+            BackgroundServiceStarter = new AndroidBackgroundServiceStarter();
+        }
+    }
+}