diff --git a/app/src/main/java/com/example/app/CameraActivity.kt b/app/src/main/java/com/example/app/CameraActivity.kt
index 1b6aa8a..a2f21d7 100644
--- a/app/src/main/java/com/example/app/CameraActivity.kt
+++ b/app/src/main/java/com/example/app/CameraActivity.kt
@@ -1,8 +1,8 @@
 package com.example.app
 
 import android.Manifest
+import android.annotation.SuppressLint
 import android.content.ContentValues
-import android.content.SharedPreferences
 import android.content.pm.PackageManager
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
@@ -32,7 +32,6 @@ import java.text.SimpleDateFormat
 import java.util.*
 import java.util.concurrent.ExecutorService
 import java.util.concurrent.Executors
-import kotlin.math.roundToInt
 
 class CameraActivity : AppCompatActivity() {
 
diff --git a/app/src/main/java/com/example/app/LocationManagerHelper.kt b/app/src/main/java/com/example/app/LocationManagerHelper.kt
deleted file mode 100644
index 78a63cc..0000000
--- a/app/src/main/java/com/example/app/LocationManagerHelper.kt
+++ /dev/null
@@ -1,90 +0,0 @@
-package com.example.app
-
-import android.Manifest
-import android.content.Context
-import android.content.pm.PackageManager
-import android.location.Location
-import android.location.LocationManager
-import android.os.Looper
-import androidx.core.app.ActivityCompat
-import com.google.android.gms.location.*
-import java.util.concurrent.TimeUnit
-
-/**
- * 位置服务管理器
- * 处理位置获取、地理编码等功能
- */
-class LocationManagerHelper(private val context: Context) {
-    
-    private var fusedLocationClient: FusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(context)
-    private var locationCallback: LocationCallback? = null
-    
-    /**
-     * 获取最后一次已知位置
-     */
-    fun getLastKnownLocation(onResult: (Location?) -> Unit) {
-        if (!hasLocationPermissions()) {
-            onResult(null)
-            return
-        }
-        
-        fusedLocationClient.lastLocation
-            .addOnSuccessListener { location ->
-                onResult(location)
-            }
-            .addOnFailureListener { 
-                onResult(null)
-            }
-    }
-    
-    /**
-     * 实时获取位置
-     */
-    fun requestLocationUpdates(callback: (Location?) -> Unit) {
-        if (!hasLocationPermissions()) {
-            callback(null)
-            return
-        }
-        
-        val locationRequest = LocationRequest.create().apply {
-            interval = TimeUnit.SECONDS.toMillis(10) // 每10秒更新一次
-            fastestInterval = TimeUnit.SECONDS.toMillis(5) // 最快5秒更新一次
-            priority = LocationRequest.PRIORITY_HIGH_ACCURACY
-        }
-        
-        locationCallback = object : LocationCallback() {
-            override fun onLocationResult(locationResult: LocationResult) {
-                val location = locationResult.lastLocation
-                callback(location)
-            }
-        }
-        
-        fusedLocationClient.requestLocationUpdates(locationRequest, locationCallback!!, Looper.getMainLooper())
-    }
-    
-    /**
-     * 停止位置更新
-     */
-    fun stopLocationUpdates() {
-        locationCallback?.let {
-            fusedLocationClient.removeLocationUpdates(it)
-        }
-    }
-    
-    /**
-     * 检查位置权限
-     */
-    private fun hasLocationPermissions(): Boolean {
-        return (ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED ||
-                ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED)
-    }
-    
-    /**
-     * 检查GPS是否开启
-     */
-    fun isGPSEnabled(): Boolean {
-        val locationManager = context.getSystemService(Context.LOCATION_SERVICE) as LocationManager
-        return locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER) ||
-               locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)
-    }
-}
\ No newline at end of file