diff --git a/gpsrelaysentinel/src/main/java/cc/winboll/studio/gpsrelaysentinel/MainActivity.java b/gpsrelaysentinel/src/main/java/cc/winboll/studio/gpsrelaysentinel/MainActivity.java
index 9026924..9cf9284 100644
--- a/gpsrelaysentinel/src/main/java/cc/winboll/studio/gpsrelaysentinel/MainActivity.java
+++ b/gpsrelaysentinel/src/main/java/cc/winboll/studio/gpsrelaysentinel/MainActivity.java
@@ -5,18 +5,58 @@ import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.CheckBox;
 import android.widget.CompoundButton;
+import android.widget.EditText;
+import android.widget.Spinner;
 import android.widget.Switch;
+import android.widget.TextView;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.widget.Toolbar;
+import cc.winboll.studio.gpsrelaysentinel.R;
 import cc.winboll.studio.libappbase.LogUtils;
 import cc.winboll.studio.libappbase.LogView;
 import cc.winboll.studio.libappbase.ToastUtils;
 
-public class MainActivity extends AppCompatActivity {
+/**
+ * WinBoLL Studio
+ * GPSRelaySentinel 主控制页面
+ * Java7 | API26~30
+ * 新增：模拟模式勾选控制 + 按钮互斥可用状态
+ */
+public final class MainActivity extends AppCompatActivity {
 
-    LogView mLogView;
-    Switch mSwitchService;
+    //原有控件
+    private Toolbar mToolbar;
+    private LogView mLogView;
+    private Switch mSwitchService;
+
+    //新增
+    private CheckBox mCheckBoxSimMode;
+    private Button btnSendLastGps;
+    private Spinner spinDirection;
+    private EditText etSimDistance;
+    private TextView tvTargetPreview;
+    private Button btnSimSend;
+
+    //全局模式标识 供给MainService判断
+    public static boolean IS_GPS_SIM_MODE = false;
+
+    //最后真实GPS坐标
+    public static double lastLat = 30.5928;
+    public static double lastLng = 114.3055;
+
+    //全局模拟坐标 供给MainService使用
+    public static double simLat = 30.5928;
+    public static double simLng = 114.3055;
+
+    //方位对应角度(正北0° 顺时针)
+    private double currentAngle = 0.0D;
+
+    //权限请求常量
     private static final int REQUEST_LOCATION_PERMISSION = 1;
 
     @Override
@@ -24,78 +64,273 @@ public class MainActivity extends AppCompatActivity {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
-        Toolbar toolbar=(Toolbar)findViewById(R.id.toolbar);
-        setSupportActionBar(toolbar);
-
-        mLogView = findViewById(R.id.logview);
-        mSwitchService = findViewById(R.id.switch_service);
-
-        // 根据当前权限状态初始化switch
-        mSwitchService.setChecked(hasLocationPermission());
-
-        mSwitchService.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
-            @Override
-            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
-                if (isChecked) {
-                    // 打开时检查权限
-                    if (hasLocationPermission()) {
-                        startService();
-                    } else {
-                        // 没有权限，申请权限
-                        requestLocationPermission();
-                        // 暂时不打开switch，等权限申请结果
-                        mSwitchService.setChecked(false);
-                    }
-                } else {
-                    stopService();
-                }
-            }
-        });
+        initView();
+        initToolbar();
+        initSwitchEvent();
+        initSimPanelEvent();
+        initSimModeCheck();
 
         ToastUtils.show("onCreate");
     }
 
+    /**
+     * 全部控件绑定
+     */
+    private void initView() {
+        //原有
+        mToolbar = findViewById(R.id.toolbar);
+        mLogView = findViewById(R.id.logview);
+        mSwitchService = findViewById(R.id.switch_service);
+
+        //新增
+        mCheckBoxSimMode = findViewById(R.id.checkbox_sim_mode);
+        btnSendLastGps = findViewById(R.id.btn_send_last_gps);
+        spinDirection = findViewById(R.id.spin_direction);
+        etSimDistance = findViewById(R.id.et_sim_distance);
+        tvTargetPreview = findViewById(R.id.tv_target_point_preview);
+        btnSimSend = findViewById(R.id.btn_sim_send_gps);
+
+		//方位下拉 全局灰色文字
+		ArrayAdapter<CharSequence> dirAdapter = ArrayAdapter.createFromResource(
+			this,
+			R.array.direction_list,
+			R.layout.spinner_item_gray
+		);
+		dirAdapter.setDropDownViewResource(R.layout.spinner_item_gray);
+		spinDirection.setAdapter(dirAdapter);
+
+        //初始化开关状态
+        mSwitchService.setChecked(hasLocationPermission());
+        refreshButtonEnableStatus();
+        refreshTargetPreview();
+    }
+
+    //模拟勾选框监听
+    private void initSimModeCheck() {
+        mCheckBoxSimMode.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+				@Override
+				public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+					IS_GPS_SIM_MODE = isChecked;
+					refreshButtonEnableStatus();
+					if (isChecked) {
+						ToastUtils.show("已进入GPS模拟模式");
+					} else {
+						ToastUtils.show("退出模拟模式，使用真实GPS");
+					}
+				}
+			});
+    }
+
+    //刷新按钮互斥可用状态
+    private void refreshButtonEnableStatus() {
+        if (IS_GPS_SIM_MODE) {
+            //模拟模式：真实按钮禁用、模拟按钮可用
+            btnSendLastGps.setEnabled(false);
+            btnSimSend.setEnabled(true);
+        } else {
+            //正常模式：真实可用、模拟禁用
+            btnSendLastGps.setEnabled(true);
+            btnSimSend.setEnabled(false);
+        }
+    }
+
+    /**
+     * 初始化标题栏
+     */
+    private void initToolbar() {
+        setSupportActionBar(mToolbar);
+    }
+
+    /**
+     * GPS服务开关监听
+     */
+    private void initSwitchEvent() {
+        mSwitchService.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+				@Override
+				public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+					if (isChecked) {
+						if (hasLocationPermission()) {
+							startGpsService();
+						} else {
+							requestLocationPermission();
+							mSwitchService.setChecked(false);
+						}
+					} else {
+						stopGpsService();
+					}
+				}
+			});
+    }
+
+    /**
+     * 模拟发送面板 全部事件初始化
+     */
+    private void initSimPanelEvent() {
+        //1.原按钮：发送最后一条真实GPS
+        btnSendLastGps.setOnClickListener(new View.OnClickListener() {
+				@Override
+				public void onClick(View v) {
+					sendLastRealGpsBroadcast();
+				}
+			});
+
+        //2.方位下拉选择 -> 切换角度并刷新预览
+        spinDirection.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
+				@Override
+				public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+					currentAngle = getDirectionAngle(position);
+					refreshTargetPreview();
+				}
+
+				@Override
+				public void onNothingSelected(AdapterView<?> parent) {}
+			});
+
+        //3.距离输入变化自动预览
+        etSimDistance.setOnFocusChangeListener(new View.OnFocusChangeListener() {
+				@Override
+				public void onFocusChange(View v, boolean hasFocus) {
+					if (!hasFocus) {
+						refreshTargetPreview();
+					}
+				}
+			});
+
+        //4.模拟发送按钮：计算偏移并赋值全局模拟坐标
+        btnSimSend.setOnClickListener(new View.OnClickListener() {
+				@Override
+				public void onClick(View v) {
+					saveSimGpsData();
+					ToastUtils.show("已设置当前模拟GPS坐标");
+				}
+			});
+    }
+
+    /**
+     * 保存模拟坐标到全局静态变量 供给MainService使用
+     */
+    private void saveSimGpsData() {
+        String disText = etSimDistance.getText().toString().trim();
+        double distance = 10D;
+        try {
+            distance = Double.parseDouble(disText);
+        } catch (Exception e) {
+            ToastUtils.show("请输入合法距离");
+            return;
+        }
+        double[] target = calculateOffsetLatLng(lastLat, lastLng, distance, currentAngle);
+        simLat = target[0];
+        simLng = target[1];
+        refreshTargetPreview();
+    }
+
+    /**
+     * 根据下拉position获取对应方位角度
+     */
+    private double getDirectionAngle(int pos) {
+        switch (pos) {
+            case 0: return 0.0D;    //正北
+            case 1: return 180.0D;  //正南
+            case 2: return 90.0D;   //正东
+            case 3: return 270.0D;  //正西
+            case 4: return 45.0D;   //东北
+            case 5: return 315.0D;  //西北
+            case 6: return 135.0D;  //东南
+            case 7: return 225.0D;  //西南
+            default:return 0.0D;
+        }
+    }
+
+    /**
+     * 根据基准坐标+距离+角度 计算偏移经纬度
+     */
+    private double[] calculateOffsetLatLng(double lat, double lng, double distanceMeter, double angle) {
+        double radAngle = Math.toRadians(angle);
+        double radLat = Math.toRadians(lat);
+
+        double meterPerLat = 111320D;
+        double meterPerLng = Math.cos(radLat) * 111320D;
+
+        double offsetLat = (distanceMeter * Math.cos(radAngle)) / meterPerLat;
+        double offsetLng = (distanceMeter * Math.sin(radAngle)) / meterPerLng;
+
+        return new double[]{lat + offsetLat , lng + offsetLng};
+    }
+
+    /**
+     * 刷新目标坐标预览
+     */
+    private void refreshTargetPreview() {
+        String disText = etSimDistance.getText().toString().trim();
+        double distance = 10D;
+        try {
+            distance = Double.parseDouble(disText);
+        } catch (Exception e) {}
+
+        double[] target = calculateOffsetLatLng(lastLat, lastLng, distance, currentAngle);
+        String info = "目标模拟坐标："
+			+ String.format("%.6f", target[0])
+			+ " , "
+			+ String.format("%.6f", target[1]);
+        tvTargetPreview.setText(info);
+    }
+
+    /**
+     * 发送【最后真实GPS】广播
+     */
+    private void sendLastRealGpsBroadcast() {
+        Intent broadcast = new Intent("GPS_DATA_BROADCAST");
+        broadcast.putExtra("isSim", false);
+        broadcast.putExtra("lat", lastLat);
+        broadcast.putExtra("lng", lastLng);
+        sendBroadcast(broadcast);
+        LogUtils.d("GPS_SEND", "发送真实GPS -> lat:" + lastLat + " lng:" + lastLng);
+    }
+
+    //—————— 原有权限 & 服务启停 完全原样保留 ——————
+
     private boolean hasLocationPermission() {
-        boolean hasBasic = checkSelfPermission(android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
-            || checkSelfPermission(android.Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED;
-        if (hasBasic && android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.Q) {
+        boolean basicPermission = checkSelfPermission(android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
+			|| checkSelfPermission(android.Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED;
+
+        if (basicPermission && android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.Q) {
             return checkSelfPermission(android.Manifest.permission.ACCESS_BACKGROUND_LOCATION) == PackageManager.PERMISSION_GRANTED;
         }
-        return hasBasic;
+        return basicPermission;
     }
 
     private void requestLocationPermission() {
+        String[] permissionArray;
         if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.Q) {
-            String[] permissions = new String[] {
-                android.Manifest.permission.ACCESS_FINE_LOCATION,
-                android.Manifest.permission.ACCESS_COARSE_LOCATION,
-                android.Manifest.permission.ACCESS_BACKGROUND_LOCATION
+            permissionArray = new String[]{
+				android.Manifest.permission.ACCESS_FINE_LOCATION,
+				android.Manifest.permission.ACCESS_COARSE_LOCATION,
+				android.Manifest.permission.ACCESS_BACKGROUND_LOCATION
             };
-            requestPermissions(permissions, REQUEST_LOCATION_PERMISSION);
         } else {
-            String[] permissions = new String[] {
-                android.Manifest.permission.ACCESS_FINE_LOCATION,
-                android.Manifest.permission.ACCESS_COARSE_LOCATION
+            permissionArray = new String[]{
+				android.Manifest.permission.ACCESS_FINE_LOCATION,
+				android.Manifest.permission.ACCESS_COARSE_LOCATION
             };
-            requestPermissions(permissions, REQUEST_LOCATION_PERMISSION);
         }
+        requestPermissions(permissionArray, REQUEST_LOCATION_PERMISSION);
     }
 
-    private void startService() {
-        Intent intent = new Intent(MainActivity.this, MainService.class);
-        startForegroundService(intent);
+    private void startGpsService() {
+        Intent serviceIntent = new Intent(MainActivity.this, MainService.class);
+        startForegroundService(serviceIntent);
         ToastUtils.show("GPS Service started");
         LogUtils.d(MainService.TAG, "GPS Service started from MainActivity");
     }
 
-    private void stopService() {
-        // 先设置SP标记为不启用
-        MainActivity.this.getSharedPreferences(MainService.PREF_NAME, Context.MODE_PRIVATE)
-            .edit()
-            .putBoolean(MainService.KEY_SERVICE_ENABLED, false)
-            .apply();
-        Intent intent = new Intent(MainActivity.this, MainService.class);
-        stopService(intent);
+    private void stopGpsService() {
+        getSharedPreferences(MainService.PREF_NAME, Context.MODE_PRIVATE)
+			.edit()
+			.putBoolean(MainService.KEY_SERVICE_ENABLED, false)
+			.apply();
+
+        Intent serviceIntent = new Intent(MainActivity.this, MainService.class);
+        stopService(serviceIntent);
         ToastUtils.show("GPS Service stopped");
         LogUtils.d(MainService.TAG, "GPS Service stopped from MainActivity");
     }
@@ -105,9 +340,8 @@ public class MainActivity extends AppCompatActivity {
         super.onRequestPermissionsResult(requestCode, permissions, grantResults);
         if (requestCode == REQUEST_LOCATION_PERMISSION) {
             if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
-                // 权限申请成功，启动服务
                 mSwitchService.setChecked(true);
-                startService();
+                startGpsService();
             } else {
                 ToastUtils.show("需要位置权限才能使用GPS服务");
                 mSwitchService.setChecked(false);
@@ -120,8 +354,5 @@ public class MainActivity extends AppCompatActivity {
         super.onResume();
         mLogView.start();
     }
-
-//    public void onLibraryActivity(View view) {
-//		startActivity(new Intent(this, LibraryActivity.class));
-//    }
 }
+
diff --git a/gpsrelaysentinel/src/main/res/layout/activity_main.xml b/gpsrelaysentinel/src/main/res/layout/activity_main.xml
index 6c15ec1..4e9f9bc 100644
--- a/gpsrelaysentinel/src/main/res/layout/activity_main.xml
+++ b/gpsrelaysentinel/src/main/res/layout/activity_main.xml
@@ -4,7 +4,8 @@
 	xmlns:app="http://schemas.android.com/apk/res-auto"
 	android:layout_width="match_parent"
 	android:layout_height="match_parent"
-	android:orientation="vertical">
+	android:orientation="vertical"
+	android:background="#1c1c1c">
 
 	<com.google.android.material.appbar.AppBarLayout
 		android:layout_width="match_parent"
@@ -19,40 +20,172 @@
 
 	</com.google.android.material.appbar.AppBarLayout>
 
-	<ScrollView
+	<!-- 数据面板容器 -->
+	<LinearLayout
+		android:id="@+id/container_data_panel"
+		android:orientation="vertical"
 		android:layout_width="match_parent"
-		android:layout_height="0dp"
-		android:layout_weight="1.0">
+		android:layout_height="wrap_content"
+		android:gravity="center_horizontal">
+
+		<TextView
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:text="GPSRelaySentinel"
+			android:textColor="#888888"
+			android:padding="6dp"
+			android:background="@drawable/border_gray"
+			android:textAppearance="?android:attr/textAppearanceLarge"/>
 
 		<LinearLayout
-			android:orientation="vertical"
-			android:layout_width="match_parent"
+			android:layout_width="wrap_content"
 			android:layout_height="wrap_content"
-			android:gravity="center_vertical|center_horizontal"
-			android:id="@+id/ll_main">
+			android:orientation="horizontal"
+			android:gravity="center_vertical"
+			android:layout_marginTop="8dp"
+			android:spacing="12dp">
 
-			<TextView
+			<CheckBox
+				android:id="@+id/checkbox_sim_mode"
 				android:layout_width="wrap_content"
 				android:layout_height="wrap_content"
-				android:text="GPSRelaySentinel"
-				android:textAppearance="?android:attr/textAppearanceLarge"/>
+				android:text="模拟模式"
+				android:textColor="#999999"
+				android:padding="4dp"
+				android:background="@drawable/border_gray"
+				android:textSize="11sp"/>
 
 			<Switch
 				android:id="@+id/switch_service"
 				android:layout_width="wrap_content"
 				android:layout_height="wrap_content"
 				android:text="GPS Service"
+				android:textColor="#999999"
+				android:padding="4dp"
+				android:background="@drawable/border_gray"
 				android:checked="false"/>
 
+			<Button
+				android:id="@+id/btn_send_last_gps"
+				android:layout_width="wrap_content"
+				android:layout_height="wrap_content"
+				android:text="发送最后GPS"
+				android:textColor="#bbbbbb"
+				android:background="@drawable/border_gray"
+				android:textSize="12sp"/>
+
+		</LinearLayout>
+
+		<LinearLayout
+			android:layout_width="match_parent"
+			android:layout_height="wrap_content"
+			android:orientation="vertical"
+			android:layout_marginTop="16dp"
+			android:padding="12dp"
+			android:background="@drawable/border_gray">
+
+			<TextView
+				android:layout_width="wrap_content"
+				android:layout_height="wrap_content"
+				android:text="模拟移动GPS发送面板"
+				android:textColor="#999999"
+				android:textSize="12sp"/>
+
+			<LinearLayout
+				android:layout_width="match_parent"
+				android:layout_height="wrap_content"
+				android:orientation="horizontal"
+				android:layout_marginTop="8dp"
+				android:spacing="8dp">
+
+				<Spinner
+					android:id="@+id/spin_direction"
+					android:layout_width="0dp"
+					android:layout_height="wrap_content"
+					android:layout_weight="1"
+					android:background="@drawable/border_gray"/>
+
+				<EditText
+					android:id="@+id/et_sim_distance"
+					android:layout_width="0dp"
+					android:layout_height="wrap_content"
+					android:layout_weight="1"
+					android:hint="移动距离(米)"
+					android:inputType="numberDecimal"
+					android:text="10"
+					android:background="@drawable/border_gray"
+					android:textColor="#aaaaaa"
+					android:textColorHint="#666666"/>
+
+			</LinearLayout>
+
+			<TextView
+				android:id="@+id/tv_target_point_preview"
+				android:layout_width="match_parent"
+				android:layout_height="wrap_content"
+				android:text="目标坐标：等待计算..."
+				android:textColor="#999999"
+				android:background="@drawable/border_gray"
+				android:padding="6dp"
+				android:textSize="11sp"
+				android:layout_marginTop="8dp"/>
+
+			<Button
+				android:id="@+id/btn_sim_send_gps"
+				android:layout_width="match_parent"
+				android:layout_height="wrap_content"
+				android:text="发送模拟移动GPS"
+				android:textColor="#bbbbbb"
+				android:background="@drawable/border_gray"
+				android:layout_marginTop="10dp"/>
+
+		</LinearLayout>
+		
+	</LinearLayout>
+
+
+	<ScrollView
+		android:layout_width="match_parent"
+		android:layout_height="0dp"
+		android:layout_weight="1.0">
+
+		<!-- 订阅面板容器 -->
+		<LinearLayout
+			android:id="@+id/container_subscribe_panel"
+			android:orientation="vertical"
+			android:layout_width="match_parent"
+			android:layout_height="wrap_content"
+			android:gravity="center_horizontal"
+			android:padding="12dp">
+
+			<cc.winboll.studio.libgpsrelaysentinel.view.GpsSubscribeControlView
+				android:layout_width="match_parent"
+				android:layout_height="wrap_content"
+				android:layout_marginTop="10dp"
+				android:background="@drawable/border_gray"/>
+
+			<cc.winboll.studio.libgpsrelaysentinel.view.GpsSubscribeControlView
+				android:layout_width="match_parent"
+				android:layout_height="wrap_content"
+				android:layout_marginTop="10dp"
+				android:background="@drawable/border_gray"/>
+
+			<cc.winboll.studio.libgpsrelaysentinel.view.GpsSubscribeControlView
+				android:layout_width="match_parent"
+				android:layout_height="wrap_content"
+				android:layout_marginTop="10dp"
+				android:background="@drawable/border_gray"/>
+
 		</LinearLayout>
 
 	</ScrollView>
 
 	<LinearLayout
-		android:orientation="vertical"
 		android:layout_width="match_parent"
-		android:layout_height="0dp"
-		android:layout_weight="1.0">
+		android:layout_height="200dp"
+		android:orientation="vertical"
+		android:id="@+id/container_log_show"
+		android:background="@drawable/border_gray">
 
 		<cc.winboll.studio.libappbase.LogView
 			android:layout_width="match_parent"