处理副屏加载失败导致的崩溃问题

app/src/main/java/com/sw/dualscreen/activity/MainActivity.kt

@@ -5,15 +5,12 @@ import android.graphics.Outline
 import android.graphics.Typeface
 import android.hardware.display.DisplayManager
 import android.net.Uri
-import android.os.Bundle
 import android.text.TextUtils
 import android.view.View
 import android.view.ViewOutlineProvider
 import android.widget.AdapterView
 import android.widget.ArrayAdapter
-import androidx.activity.enableEdgeToEdge
 import androidx.activity.viewModels
-import androidx.appcompat.app.AppCompatActivity
 import androidx.camera.core.CameraSelector
 import androidx.camera.core.ImageAnalysis
 import androidx.camera.core.ImageCapture
@@ -36,7 +33,6 @@ import com.sw.dualscreen.presentation.SecondaryScreenPresentation
 import com.sw.dualscreen.sdk.SensorScaleUtils
 import com.sw.dualscreen.utils.GlideUtils
 import com.sw.dualscreen.view.CustomBottomSheetDialog
-import com.sw.dualscreen.view.CustomDialog
 import com.sw.dualscreen.viewmodel.BaseViewModel
 import com.sw.dualscreen.viewmodel.UserViewModel
 import com.sw.plate.utils.ToastUtils
@@ -50,7 +46,7 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
     private val viewModel by viewModels<UserViewModel>()
     private var imageCapture: ImageCapture? = null
     private var isAnalyzing = true // 控制是否进行图像分析
-    private lateinit var presentation: SecondaryScreenPresentation
+    private var presentation: SecondaryScreenPresentation? = null
     private val executor = Executors.newSingleThreadExecutor()
     private lateinit var adapter: GenericItemAdapter<FoodInfo, ItemFoodInfoBinding>
     private var checkedItem: FoodInfo? = null
@@ -78,7 +74,7 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
 
     private fun initData() {
         viewModel.getEquipmentToken()
-        presentation.step1()
+        presentation?.step1()
     }
 
     private fun initView() {
@@ -110,7 +106,7 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
                 position: Int,
                 id: Long
             ) {
-                presentation.updateMealPickupMode(position)
+                presentation?.updateMealPickupMode(position)
             }
 
             override fun onNothingSelected(parent: AdapterView<*>?) {}
@@ -133,7 +129,7 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
 
     fun updateCurrentFood(foodInfo: FoodInfo?) {
         if (foodInfo != null) {
-            presentation.updateFood(foodInfo)
+            presentation?.updateFood(foodInfo)
             binding.tvFoodName.text = foodInfo.foodName
             binding.previewView.visibility = View.GONE
             binding.ivImg.visibility = View.VISIBLE
@@ -141,7 +137,7 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
             if (TextUtils.isEmpty(imgUrl)) {
                 takePhoto { imgUri ->
                     GlideUtils.loadRoundCornerImage(this, imgUri, binding.ivImg, 12)
-                    presentation.updateFood(foodInfo.copy(imgUrl = imgUri.toString()))
+                    presentation?.updateFood(foodInfo.copy(imgUrl = imgUri.toString()))
                 }
             } else {
                 GlideUtils.loadRoundCornerImage(this, foodInfo.imgUrl, binding.ivImg, 12)
@@ -167,7 +163,7 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
         }
         SensorScaleUtils.startScale { weight ->
             Timber.d("registerDataChange weight = $weight")
-            presentation.updateWeight(weight)
+            presentation?.updateWeight(weight)
             if (weight > 0.0) {
                 if (canIdentify) {
                     canIdentify = false
@@ -226,7 +222,7 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
                         // 仅在步骤1时传递
                         if (isAnalyzing) {
                             val bitmap = imageProxy.toBitmap()
-                            presentation.updateImage(bitmap) // 更新副屏
+                            presentation?.updateImage(bitmap) // 更新副屏
                         }
                         imageProxy.close() // 必须关闭以释放资源
                     }
@@ -266,9 +262,9 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
         if (isAnalyzing) return
         isAnalyzing = true
         imageAnalysis?.setAnalyzer(executor) { imageProxy ->
-            if (presentation.currentStep == 1) {
+            if (presentation?.currentStep == 1) {
                 val bitmap = imageProxy.toBitmap()
-                presentation.updateImage(bitmap)
+                presentation?.updateImage(bitmap)
             }
             imageProxy.close()
         }
@@ -360,19 +356,21 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
                     viewModel = viewModel,
                     recognizeViewModel = viewModels<RecognizeViewModel>().value
                 )
-            presentation.setStepChangeCallback { step ->
+            presentation!!.setStepChangeCallback { step ->
                 if (step == 1) {
                     updateCurrentFood(null)
                     bottomSheetDialog?.dismiss()
                 }
             }
-            presentation.show()
+            presentation!!.show()
+        } else {
+            ToastUtils.showToast("获取副屏失败")
         }
     }
 
     override fun onDestroy() {
         SensorScaleUtils.closeScale()
-        presentation.dismiss()
+        presentation?.dismiss()
         super.onDestroy()
     }
 }

app/src/main/java/com/sw/dualscreen/presentation/SecondaryScreenPresentation.kt

@@ -79,7 +79,7 @@ class SecondaryScreenPresentation(
     private val debouncer = Debouncer(500)
     private var recognitionTime: Long = 0L // 人脸识别时的时间
     private var recognitionWeight: Double = 0.0 // 人脸识别时的重量
-    private var lastFaceTrackId: Int = 0 // 上一次的人脸信息
+    private var lastFaceTrackId: Int = -1 // 上一次的人脸信息
     private var mealPickupMode: Int = 0 // 取餐模式  0 即放即取  1 余量取餐
 
     // 当前步骤
@@ -176,6 +176,7 @@ class SecondaryScreenPresentation(
         binding.flPreview.visibility = View.VISIBLE
         binding.ivImg.visibility = View.VISIBLE
         binding.flFace.visibility = View.INVISIBLE
+        binding.tvFaceTip.visibility = View.GONE
         pauseCamera()
         binding.tvBottomTip.visibility = View.VISIBLE
         itemUserNutritionBinding.clNutritionData.visibility = View.GONE
@@ -750,7 +751,7 @@ class SecondaryScreenPresentation(
      * @param facePreviewInfoList RGB画面的实时人脸信息
      */
     private fun drawPreviewInfo(facePreviewInfoList: MutableList<FacePreviewInfo?>) {
-//        Timber.d("drawPreviewInfo facePreviewInfoList = ${facePreviewInfoList.size}, rgbFaceRectTransformer = ${rgbFaceRectTransformer != null}")
+        Timber.d("drawPreviewInfo facePreviewInfoList = ${facePreviewInfoList.size}, rgbFaceRectTransformer = ${rgbFaceRectTransformer != null}")
         if (rgbFaceRectTransformer != null) {
             val rgbDrawInfoList: MutableList<DrawInfo?>? = recognizeViewModel.getDrawInfo(
                 facePreviewInfoList,
@@ -762,9 +763,9 @@ class SecondaryScreenPresentation(
         }
 
         if (facePreviewInfoList.isEmpty() || (lastFaceTrackId != facePreviewInfoList[0]!!.trackId)) {
-            if (lastFaceTrackId != 0) {
+            if (lastFaceTrackId != -1) {
                 Timber.i("$lastFaceTrackId 用户离开")
-                lastFaceTrackId = 0
+                lastFaceTrackId = -1
                 postUserData()
                 if (mealPickupMode == 0) {
                     step1()

app/src/main/java/com/sw/dualscreen/utils/ScreenUtils.kt

@@ -0,0 +1,47 @@
+package com.sw.dualscreen.utils
+
+import android.content.Context
+import android.util.DisplayMetrics
+import android.view.WindowManager
+import timber.log.Timber
+import kotlin.math.sqrt
+
+object ScreenUtils {
+    fun printScreenInfo(context: Context, tag: String) {
+        val windowManager = context.getSystemService(Context.WINDOW_SERVICE) as WindowManager
+        val displayMetrics = DisplayMetrics()
+
+        // 方法 1：获取应用可用区域（排除系统装饰，如状态栏）
+        windowManager.defaultDisplay.getMetrics(displayMetrics)
+
+        // 方法 2：获取整个屏幕的物理尺寸（包括状态栏和导航栏）
+        // windowManager.defaultDisplay.getRealMetrics(displayMetrics)
+
+        val screenWidthPx = displayMetrics.widthPixels    // 屏幕宽度（像素）
+        val screenHeightPx = displayMetrics.heightPixels  // 屏幕高度（像素）
+        val density = displayMetrics.density             // 逻辑密度（1.0 = mdpi, 2.0 = xhdpi）
+        val densityDpi = displayMetrics.densityDpi       // 屏幕 DPI 分类（160 = mdpi, 320 = xhdpi）
+        val xdpi = displayMetrics.xdpi                   // 物理水平 DPI
+        val ydpi = displayMetrics.ydpi                   // 物理垂直 DPI
+
+        // 打印信息
+        Timber.d("$tag 屏幕信息")
+        Timber.d("屏幕分辨率（像素）: ${screenWidthPx}x${screenHeightPx}")
+        Timber.d("逻辑密度: $density")
+        Timber.d("DPI 分类: $densityDpi")
+        Timber.d("物理 DPI (x/y): $xdpi / $ydpi")
+
+        // 计算屏幕物理尺寸（英寸）
+        val screenWidthInches = screenWidthPx / xdpi
+        val screenHeightInches = screenHeightPx / ydpi
+        val diagonalInches = sqrt(
+            (screenWidthInches * screenWidthInches + screenHeightInches * screenHeightInches).toDouble()
+        )
+        Timber.d(
+            "屏幕物理尺寸（英寸）: %.1f x %.1f (对角线: %.1f\")".format(
+                screenWidthInches, screenHeightInches, diagonalInches
+            )
+        )
+    }
+
+}

app/src/main/res/layout/presentation_secondary_screen.xml

@@ -82,7 +82,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_gravity="center_horizontal"
-            android:layout_marginTop="566dp"
+            android:layout_marginTop="586dp"
             android:text="请正视屏幕"
             android:textColor="#ffece7d0"
             android:textSize="24sp"
@@ -121,6 +121,7 @@
             android:layout_height="486dp"
             android:layout_gravity="bottom"
             android:background="@drawable/rounded_border_transparent"
+            android:orientation="vertical"
             android:gravity="center">
 
             <TextView