refactor(base): 优化协程作用域和空安全处理

- 将自定义CoroutineScope替换为lifecycleScope以避免内存泄漏
- 添加runCatching包装器处理潜在异常并记录错误日志
- 使用安全调用操作符替代强制调用防止空指针异常
- 在CountDownTimer中正确管理生命周期以避免内存泄漏
- 修复设备信息获取中的数组越界风险
- 统一异步操作的线程切换方式
- 保护Fragment中的_binding访问权限
- 改进相机助手对象引用的安全性检查

app/src/main/java/com/sw/platecabinet/activity/BaseActivity.kt

@@ -30,10 +30,10 @@ import com.sw.platecabinet.utils.IntervalExecutor
 import com.sw.platecabinet.utils.SpTool
 import com.sw.platecabinet.view.CustomLoadingDialog
 import com.sw.platecabinet.viewmodel.UserViewModel
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import timber.log.Timber
 
 /**
@@ -142,8 +142,7 @@ abstract class BaseActivity<VB : ViewBinding> : AppCompatActivity() {
                     onRightDoubleClick()
                 }
             )
-            val scope = CoroutineScope(Dispatchers.Main)
+            timeJob = lifecycleScope.launch {
-            timeJob = scope.launch {
                 DateTimeUtils.realTimeChineseDateFlow()
                     .collect { date ->
                         it.tvRightTime.text = date
@@ -347,7 +346,9 @@ abstract class BaseActivity<VB : ViewBinding> : AppCompatActivity() {
                         val alreadyExists = featureMatches.any { it }
                         if (!alreadyExists) {
                             //当前特征不存在，保存
-                            faceList.add(getNewFaceEntity(model))
+                            runCatching { getNewFaceEntity(model) }
+                                .onSuccess { faceList.add(it) }
+                                .onFailure { Timber.e(it, "人脸特征解码失败: userId=${model.userId}") }
                         }
                     }
                 }
@@ -378,13 +379,13 @@ abstract class BaseActivity<VB : ViewBinding> : AppCompatActivity() {
     }
 
     fun clearAllFace(block: () -> Unit) {
-        Thread {
+        lifecycleScope.launch(Dispatchers.IO) {
             val faceDao = FaceDatabase.getInstance(App.getContext()).faceDao()
             faceDao.deleteAll()
             faceDao.resetId()
             recognizeViewModel.refreshFaceList()
-            runOnUiThread { block() }
+            withContext(Dispatchers.Main) { block() }
-        }.start()
+        }
     }
 
     private var permissionCallback: ((isGranted: Boolean) -> Unit)? = null

app/src/main/java/com/sw/platecabinet/activity/LoginByFaceActivity.kt

@@ -238,7 +238,10 @@ class LoginByFaceActivity : BaseActivity<ActivityLoginFaceBinding>(),
                     return@setCallback
                 }
                 if (this.userFaceInfo == null && isFitData(userFaceInfo)) {
-                    val headBmp = userFaceInfo.headBmp
+                    val headBmp = userFaceInfo.headBmp ?: run {
+                        loadLogInfo("collectFace,isFitData:headBmp 为 null，跳过")
+                        return@setCallback
+                    }
                     if (headBmp.width <= 200 || headBmp.height <= 200) {
                         loadLogInfo("collectFace,isFitData:拿到人脸提取特征数据照片过小w:${headBmp.width},h:${headBmp.height}-----------")
                         binding.llCollectButton.visible()
@@ -253,30 +256,30 @@ class LoginByFaceActivity : BaseActivity<ActivityLoginFaceBinding>(),
             }
         }
         recognizeViewModel.ftInitCode.observe(this) { ftInitCode: Int? ->
-            if (ftInitCode != ErrorInfo.MOK) {
+            if (ftInitCode != null && ftInitCode != ErrorInfo.MOK) {
                 val error: String? = getString(
                     R.string.specific_engine_init_failed, "ftEngine",
-                    ftInitCode, ErrorCodeUtil.arcFaceErrorCodeToFieldName(ftInitCode!!)
+                    ftInitCode, ErrorCodeUtil.arcFaceErrorCodeToFieldName(ftInitCode)
                 )
                 Timber.e("ftInitCode observe = $error")
                 ToastUtils.showToast(error)
             }
         }
         recognizeViewModel.frInitCode.observe(this) { frInitCode: Int? ->
-            if (frInitCode != ErrorInfo.MOK) {
+            if (frInitCode != null && frInitCode != ErrorInfo.MOK) {
                 val error: String? = getString(
                     R.string.specific_engine_init_failed, "frEngine",
-                    frInitCode, ErrorCodeUtil.arcFaceErrorCodeToFieldName(frInitCode!!)
+                    frInitCode, ErrorCodeUtil.arcFaceErrorCodeToFieldName(frInitCode)
                 )
                 Timber.e("frInitCode observe = $error")
                 ToastUtils.showToast(error)
             }
         }
         recognizeViewModel.flInitCode.observe(this) { flInitCode: Int? ->
-            if (flInitCode != ErrorInfo.MOK) {
+            if (flInitCode != null && flInitCode != ErrorInfo.MOK) {
                 val error: String? = getString(
                     R.string.specific_engine_init_failed, "flEngine",
-                    flInitCode, ErrorCodeUtil.arcFaceErrorCodeToFieldName(flInitCode!!)
+                    flInitCode, ErrorCodeUtil.arcFaceErrorCodeToFieldName(flInitCode)
                 )
                 Timber.e("flInitCode observe = $error")
                 ToastUtils.showToast(error)
@@ -615,7 +618,7 @@ class LoginByFaceActivity : BaseActivity<ActivityLoginFaceBinding>(),
             override fun onCameraConfigurationChanged(cameraID: Int, displayOrientation: Int) {
                 Timber.i("initRgbCamera onCameraConfigurationChanged: threadName = ${Thread.currentThread().name}")
                 if (rgbFaceRectTransformer != null) {
-                    rgbFaceRectTransformer!!.cameraDisplayOrientation = displayOrientation
+                    rgbFaceRectTransformer?.cameraDisplayOrientation = displayOrientation
                 }
                 Timber.i("initRgbCamera onCameraConfigurationChanged: $cameraID  $displayOrientation")
             }
@@ -672,10 +675,11 @@ class LoginByFaceActivity : BaseActivity<ActivityLoginFaceBinding>(),
 
     private fun resumeCamera() {
 //        isRecognition = true
-        if (rgbCameraHelper != null && rgbCameraHelper!!.isStopped) {
+        val helper = rgbCameraHelper
+        if (helper != null && helper.isStopped) {
             loadLogInfo("collectFace,resumeCamera: ")
             isRecognition = true
-            rgbCameraHelper!!.start()
+            helper.start()
         } else {
             //recognizeViewModel.onPreviewFrame(ByteArray(1382400), true)
 

app/src/main/java/com/sw/platecabinet/fragment/BaseFragment.kt

@@ -15,7 +15,7 @@ import com.sw.platecabinet.view.CustomLoadingDialog
 abstract class BaseFragment<VB : ViewBinding>(
     private val bindingInflater: (inflater: LayoutInflater, parent: ViewGroup?, attachToParent: Boolean) -> VB
 ) : Fragment() {
-    private var _binding: VB? = null
+    protected var _binding: VB? = null
     protected val binding get() = _binding!!
     private var mDialogWaiting: CustomLoadingDialog? = null
 

app/src/main/java/com/sw/platecabinet/fragment/PlateCabinetFullFragment.kt

@@ -11,6 +11,7 @@ import timber.log.Timber
 class PlateCabinetFullFragment :
     BaseFragment<FragmentPlateCabinetFullBinding>(FragmentPlateCabinetFullBinding::inflate) {
     private var totalTimeInMillis: Long = Constants.AUTO_CLOSE_TIME * 1000
+    private var countDownTimer: CountDownTimer? = null
 
     override fun initialize() {
         Timber.d("initialize")
@@ -18,15 +19,22 @@ class PlateCabinetFullFragment :
     }
 
     fun initCountTime() {
-        object : CountDownTimer(totalTimeInMillis, 1000) {
+        countDownTimer = object : CountDownTimer(totalTimeInMillis, 1000) {
             override fun onTick(millisUntilFinished: Long) {
-                binding.tvAutoClose.text = "${(millisUntilFinished / 1000).toInt() + 1}秒后返回主屏"
+                _binding?.tvAutoClose?.text = "${(millisUntilFinished / 1000).toInt() + 1}秒后返回主屏"
             }
 
             override fun onFinish() {
                 activity?.finish()
             }
-        }.start()
+        }
+        countDownTimer?.start()
+    }
+
+    override fun onDestroyView() {
+        countDownTimer?.cancel()
+        countDownTimer = null
+        super.onDestroyView()
     }
 
 }

app/src/main/java/com/sw/platecabinet/fragment/PlateOpenFragment.kt

@@ -20,6 +20,7 @@ class PlateOpenFragment :
 //    private var isAdmin: Boolean = false
 
     private var isScanCode = false
+    private var countDownTimer: CountDownTimer? = null
     companion object {
         const val IS_SCAN_CODE = "isScanCode"
 //        @JvmStatic
@@ -75,19 +76,23 @@ class PlateOpenFragment :
     }
 
     fun initCountTime() {
-        object : CountDownTimer(totalTimeInMillis, 1000) {
+        countDownTimer = object : CountDownTimer(totalTimeInMillis, 1000) {
             override fun onTick(millisUntilFinished: Long) {
-                binding.tvAutoClose.text = ((millisUntilFinished / 1000).toInt() + 1).toString()
+                _binding?.tvAutoClose?.text = ((millisUntilFinished / 1000).toInt() + 1).toString()
             }
 
             override fun onFinish() {
+                val ctx = context ?: return
                 activity?.finish()
-//                if (!isAdmin) {
+                ctx.startActivity(Intent(ctx, InitActivity::class.java))
-                val intent = Intent(context, InitActivity::class.java)
-                startActivity(intent)
-//                }
-
             }
-        }.start()
+        }
+        countDownTimer?.start()
+    }
+
+    override fun onDestroyView() {
+        countDownTimer?.cancel()
+        countDownTimer = null
+        super.onDestroyView()
     }
 }

app/src/main/java/com/sw/platecabinet/utils/CrashHandler.kt

@@ -154,7 +154,7 @@ class CrashHandler private constructor(private val context: Context) :
             // 设备信息
             sb.append("Vendor: ${Build.MANUFACTURER}\n")
             sb.append("Model: ${Build.MODEL}\n")
-            sb.append("CPU ABI: ${Build.SUPPORTED_ABIS[0]}\n")
+            sb.append("CPU ABI: ${Build.SUPPORTED_ABIS.firstOrNull() ?: "unknown"}\n")
 
             // 其他信息
             sb.append("Locale: ${Locale.getDefault()}\n")