重写NFCHelper

NFCLockDemoV2/Platforms/Android/MainActivity.cs

@@ -7,55 +7,138 @@ using Android.OS;
 using Com.Lvcheng.Lock.Shared.Nfc.Example.Java;
 using NFCLockDemoV2;
 using NFCLockDemoV2.Platforms.Android;
-using NFCLockDemoV2.ViewModels;
+using System.Diagnostics;
-using Microsoft.Maui;
-using Microsoft.Maui.Controls;
 
 namespace NFCLockAppV2;
 
 [Activity(Theme = "@style/Maui.SplashTheme", MainLauncher = true, LaunchMode = LaunchMode.SingleTop, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation | ConfigChanges.UiMode | ConfigChanges.ScreenLayout | ConfigChanges.SmallestScreenSize | ConfigChanges.Density, Exported = true)]
 [IntentFilter(new[] { Intent.ActionMain }, Categories = new[] { Intent.CategoryLauncher })]
-[IntentFilter(new[] { NfcAdapter.ActionNdefDiscovered }, Categories = new[] { Intent.CategoryDefault }, DataMimeType = "text/plain")]
+[IntentFilter(new[] { NfcAdapter.ActionNdefDiscovered, NfcAdapter.ActionTechDiscovered, NfcAdapter.ActionTagDiscovered }, Categories = new[] { Intent.CategoryDefault }, DataMimeType = "text/plain")]
 public class MainActivity : MauiAppCompatActivity
 {
-    private NFCHelper? nfcHelper;
+    private NFCLockHelper nfcHelper;
-    private NFCCallbacks? NFCCallbacks;
+    private NFCCallbacks _callbacks;
+
+    //private NfcAdapter _nfcAdapter;
+    //private PendingIntent _pendingIntent;
+    //private string[][] _techLists = [[typeof(NfcA).FullName, typeof(NdefFormatable).FullName, typeof(MifareUltralight).FullName]];
+    //private IntentFilter[] _intentFilters = [new(NfcAdapter.ActionNdefDiscovered), new(NfcAdapter.ActionTechDiscovered), new(NfcAdapter.ActionTagDiscovered)];
+    //private volatile bool _processing = false;
 
     protected override void OnCreate(Bundle savedInstanceState)
     {
         base.OnCreate(savedInstanceState);
-    }
+        _callbacks = new NFCCallbacks();
+        nfcHelper = new NFCLockHelper(this, _callbacks);
+        //_nfcAdapter = NfcAdapter.GetDefaultAdapter(this);
+        //_pendingIntent = PendingIntent.GetActivity(this, 0, new Intent(this, typeof(MainActivity)).AddFlags(ActivityFlags.ReceiverReplacePending), PendingIntentFlags.Mutable);
 
-    private void InitializeNFC()
-    {
-        if (Microsoft.Maui.Controls.Application.Current?.Handler?.MauiContext?.Services != null)
-        {
-            NFCCallbacks = Microsoft.Maui.Controls.Application.Current.Handler.MauiContext.Services.GetService<NFCCallbacks>();
-        }
-
-        if (NFCCallbacks != null)
-        {
-            nfcHelper = new NFCHelper(this, NFCCallbacks);
-        }
     }
     
     protected override void OnResume()
     {
         base.OnResume();
-        // 确保NFC功能在每次恢复时都已初始化
+        nfcHelper.OnResume();
-        InitializeNFC();
+        //if (_nfcAdapter != null)
-        nfcHelper?.OnResume();
+        //{
+        //    _nfcAdapter.EnableForegroundDispatch(this, _pendingIntent, _intentFilters, _techLists);
+        //}
     }
     
     protected override void OnPause()
     {
         base.OnPause();
-        nfcHelper?.OnPause();
+        nfcHelper.OnPause();
+        //if (_nfcAdapter != null)
+        //{
+        //    _nfcAdapter.DisableForegroundDispatch(this);
+        //}
     }
 
     protected override void OnNewIntent(Intent intent)
     {
         base.OnNewIntent(intent);
-        nfcHelper?.OnNewIntent(intent);
+        nfcHelper.OnNewIntent(intent);
+        //if (!_processing)
+        //{
+
+        //    if (intent != null && (intent.Action == NfcAdapter.ActionNdefDiscovered ||
+        //                           intent.Action == NfcAdapter.ActionTechDiscovered ||
+        //                           intent.Action == NfcAdapter.ActionTagDiscovered))
+        //    {
+                
+        //        Task.Run(async () =>
+        //        {
+        //            try
+        //            {
+        //                _processing = true;
+        //                Tag? tag = intent.GetParcelableExtra(NfcAdapter.ExtraTag) as Tag;
+        //                if (tag != null)
+        //                {
+        //                    NfcA? nfcA = NfcA.Get(tag);
+        //                    if (nfcA != null)
+        //                    {
+        //                        nfcA.Connect();
+        //                        nfcA.Timeout = 1000;
+        //                        Process(nfcA);
+        //                    }
+        //                }
+        //            }
+        //            catch (Exception e)
+        //            {
+        //                _callbacks.OnLost();
+        //                Console.WriteLine(e);
+        //            }
+        //            finally
+        //            {
+        //                await Task.Delay(2000);
+        //                _processing = false;
+        //                _callbacks.OnFinished();
+        //            }
+        //        });
+        //    }
+        //}
+
+    }
+
+    private void Process(NfcA nfcA)
+    {
+        DeviceManagerWrapper wrapper = new DeviceManagerWrapper(nfcA);
+
+        try
+        {
+            Com.Lvcheng.Lock.Shared.Nfc.Result initRes = wrapper.Init();
+            if (initRes.Equals(Com.Lvcheng.Lock.Shared.Nfc.Result.Ok))
+            {
+                long? id;
+                bool? isNew;
+                int? mRssi;
+
+                // 无限循环，替代 do-while
+                while (true)
+                {
+                    Com.Lvcheng.Lock.Shared.Nfc.Result getInfoRes = wrapper.Info;
+                    if (!getInfoRes.Equals(Com.Lvcheng.Lock.Shared.Nfc.Result.Ok))
+                        return;
+
+                    _ = wrapper.Rssi;
+                    id = wrapper.MGetId().LongValue();
+                    isNew = wrapper.MGetIsNew().BooleanValue();
+                    mRssi = wrapper.MGetRssi().IntValue();
+
+                    // 判断是否继续循环
+                    bool continueLoop = _callbacks.OnLoop(wrapper, id, isNew, mRssi);
+                    System.Diagnostics.Debug.WriteLine("continueLoop:" + continueLoop);
+
+                    // 不继续就退出循环
+                    if (!continueLoop)
+                        break;
+                }
+            }
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+        }
     }
 }

NFCLockDemoV2/Platforms/Android/NFCCallbacks.cs

@@ -6,13 +6,13 @@ using Exception = System.Exception;
 
 namespace NFCLockDemoV2.Platforms.Android
 {
-    public class NFCCallbacks : Java.Lang.Object, INFCCallbacks
+    public class NFCCallbacks
     {
         private readonly MainViewModel mainViewModel;
         private ViewModels.OperationType? Operation => mainViewModel.Operation;
-        public NFCCallbacks(MainViewModel mainViewModel)
+        public NFCCallbacks()
         {
-            this.mainViewModel = mainViewModel;
+            mainViewModel = Application.Current?.Handler?.MauiContext?.Services.GetService<MainViewModel>();
         }
 
         public void OnFinished()
@@ -24,7 +24,7 @@ namespace NFCLockDemoV2.Platforms.Android
             mainViewModel.ArcProgress = 0;
         }
 
-        public Java.Lang.Boolean? OnLoop(DeviceManagerWrapper? wrapper, Long? id, Java.Lang.Boolean? isNew, Integer? rssi)
+        public bool OnLoop(DeviceManagerWrapper? wrapper, long? id, bool? isNew, int? rssi)
         {
             try
             {
@@ -63,12 +63,12 @@ namespace NFCLockDemoV2.Platforms.Android
                         {
                             mainViewModel.UpdateMessage("验证失败");
                             // 返回 false 手动结束 NFC 连接
-                            return new Java.Lang.Boolean(false);
+                            return false;
                         } 
                         else 
                         {
                             mainViewModel.UpdateMessage("充电失败");
-                            return new Java.Lang.Boolean(false);
+                            return false;
                         }
                         
                         // 添加短暂延迟以避免过度频繁的循环
@@ -89,7 +89,7 @@ namespace NFCLockDemoV2.Platforms.Android
                             {
                                 mainViewModel.UpdateMessage("开锁失败");
                             }
-                            return new Java.Lang.Boolean(false);
+                            return false;
                             
                         case ViewModels.OperationType.LOCK:
                             if (wrapper.Control(password, true) == Com.Lvcheng.Lock.Shared.Nfc.Result.Ok) 
@@ -100,7 +100,7 @@ namespace NFCLockDemoV2.Platforms.Android
                             {
                                 mainViewModel.UpdateMessage("关锁失败");
                             }
-                            return new Java.Lang.Boolean(false);
+                            return false;
                             
                         case ViewModels.OperationType.SET_PASSWORD:
                             if (wrapper.SetKey(password, "") == Com.Lvcheng.Lock.Shared.Nfc.Result.Ok) 
@@ -111,17 +111,17 @@ namespace NFCLockDemoV2.Platforms.Android
                             {
                                 mainViewModel.UpdateMessage("设置密码失败");
                             }
-                            return new Java.Lang.Boolean(false);
+                            return false;
                     }
                 }
 
-                return new Java.Lang.Boolean(true);
+                return true;
             }
             catch (Exception ex)
             {
                 Log.Error("NFCCallbacks", "Error in OnLoop: " + ex.Message);
                 mainViewModel.UpdateMessage("操作异常: " + ex.Message);
-                return new Java.Lang.Boolean(false);
+                return false;
             }
         }
 

NFCLockDemoV2/Platforms/Android/NFCLockHelper.cs

@@ -0,0 +1,125 @@
+using Android.App;
+using Android.Content;
+using Android.Nfc;
+using Android.Nfc.Tech;
+using AndroidX.Activity;
+using Com.Lvcheng.Lock.Shared.Nfc.Example.Java;
+using NFCLockAppV2;
+using NFCLockDemoV2.Platforms.Android;
+
+namespace NFCLockDemoV2;
+
+public class NFCLockHelper
+{
+    private readonly MainActivity _activity;
+    private readonly NFCCallbacks _callbacks;
+    
+    private readonly NfcAdapter _nfcAdapter;
+    private readonly PendingIntent _pendingIntent;
+    private string[][] _techLists = [[typeof(NfcA).FullName, typeof(NdefFormatable).FullName, typeof(MifareUltralight).FullName]];
+    private IntentFilter[] _intentFilters = [new(NfcAdapter.ActionNdefDiscovered), new(NfcAdapter.ActionTechDiscovered), new(NfcAdapter.ActionTagDiscovered)];
+    private volatile bool _processing = false;
+    
+    public NFCLockHelper(MainActivity activity, NFCCallbacks callbacks)
+    {
+        _activity = activity;
+        _callbacks = callbacks;
+        _nfcAdapter = NfcAdapter.GetDefaultAdapter(_activity);
+        _pendingIntent = PendingIntent.GetActivity(_activity, 0, new Intent(_activity, typeof(MainActivity)).AddFlags(ActivityFlags.ReceiverReplacePending), PendingIntentFlags.Mutable);
+    }
+
+    public void OnResume()
+    {
+        if (_nfcAdapter != null)
+        {
+            _nfcAdapter.EnableForegroundDispatch(_activity, _pendingIntent, _intentFilters, _techLists);
+        }
+    }
+    
+    public void OnPause()
+    {
+        if (_nfcAdapter != null)
+        {
+            _nfcAdapter.DisableForegroundDispatch(_activity);
+        }
+    }
+    
+    public void OnNewIntent(Intent intent)
+    {
+        if (!_processing)
+        {
+            
+            if (intent != null && (intent.Action == NfcAdapter.ActionNdefDiscovered ||
+                                   intent.Action == NfcAdapter.ActionTechDiscovered ||
+                                   intent.Action == NfcAdapter.ActionTagDiscovered))
+            {
+                Task.Run(async() =>
+                {
+                    try
+                    {
+                        _processing = true;
+                        Tag? tag = intent.GetParcelableExtra(NfcAdapter.ExtraTag) as Tag;
+                        if (tag != null)
+                        {
+                            NfcA? nfcA = NfcA.Get(tag);
+                            if (nfcA != null)
+                            {
+                                nfcA.Connect();
+                                nfcA.Timeout = 1000;
+                                Process(nfcA);
+                            }
+                        }
+                    }
+                    catch (Exception e)
+                    {
+                        _callbacks.OnLost();
+                        Console.WriteLine(e);
+                    }
+                    finally
+                    {
+                        await Task.Delay(2000);
+                        _processing = false;
+                        _callbacks.OnFinished();
+                    }
+                });
+            }
+        }
+    }
+
+    private void Process(NfcA nfcA)
+    {
+        DeviceManagerWrapper wrapper = new DeviceManagerWrapper(nfcA);
+
+        try
+        {
+            Com.Lvcheng.Lock.Shared.Nfc.Result initRes = wrapper.Init();
+            if (initRes.Equals(Com.Lvcheng.Lock.Shared.Nfc.Result.Ok))
+            {
+                long? id;
+                bool? isNew;
+                int? mRssi;
+
+                while (true)
+                {
+                    Com.Lvcheng.Lock.Shared.Nfc.Result getInfoRes = wrapper.Info;
+                    if (!getInfoRes.Equals(Com.Lvcheng.Lock.Shared.Nfc.Result.Ok))
+                        return;
+
+                    _ = wrapper.Rssi;
+                    id = wrapper.MGetId().LongValue();
+                    isNew = wrapper.MGetIsNew().BooleanValue();
+                    mRssi = wrapper.MGetRssi().IntValue();
+
+                    bool continueLoop = _callbacks.OnLoop(wrapper, id, isNew, mRssi);
+
+                    if (!continueLoop)
+                        break;
+                }
+            }
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+        }
+    }
+}