优化UI

app/src/main/java/com/example/defenseapplication/login/FaceVerificationActivity.kt

@@ -4,8 +4,10 @@ import android.Manifest
 import android.content.pm.PackageManager
 import android.os.Bundle
 import android.widget.Toast
+import androidx.annotation.OptIn
 import androidx.appcompat.app.AppCompatActivity
 import androidx.camera.core.CameraSelector
+import androidx.camera.core.ExperimentalGetImage
 import androidx.camera.core.ImageAnalysis
 import androidx.camera.core.Preview
 import androidx.camera.lifecycle.ProcessCameraProvider
@@ -38,6 +40,9 @@ class FaceVerificationActivity : AppCompatActivity() {
             .statusBarDarkFont(true)
             .titleBar(binding.topContainer)
             .init()
+        binding.backIcon.setOnClickListener {
+            finish()
+        }
         // 初始化人脸检测器（选项可自行调整）
         val options = FaceDetectorOptions.Builder()
             .setPerformanceMode(FaceDetectorOptions.PERFORMANCE_MODE_FAST)
@@ -65,6 +70,7 @@ class FaceVerificationActivity : AppCompatActivity() {
         }
     }
 
+    @OptIn(ExperimentalGetImage::class)
     private fun startCamera() {
         val cameraProviderFuture = ProcessCameraProvider.getInstance(this)
         cameraProviderFuture.addListener({
@@ -81,8 +87,8 @@ class FaceVerificationActivity : AppCompatActivity() {
                 .build()
             imageAnalysis.setAnalyzer(cameraExecutor, FaceAnalyzer(faceDetector, binding.overlay))
 
-            // 选择后置摄像头
+            // 选择前置摄像头
-            val cameraSelector = CameraSelector.DEFAULT_BACK_CAMERA
+            val cameraSelector = CameraSelector.DEFAULT_FRONT_CAMERA
 
             // 绑定到生命周期
             cameraProvider.bindToLifecycle(this, cameraSelector, preview, imageAnalysis)

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

@@ -11,7 +11,7 @@
     <!-- 标题栏 -->
     <LinearLayout
         android:id="@+id/topBar"
-        android:layout_width="0dp"
+        android:layout_width="match_parent"
         android:layout_height="56dp"
         android:gravity="center_vertical"
         android:paddingHorizontal="16dp"
@@ -30,7 +30,7 @@
             android:layout_height="wrap_content"
             android:layout_weight="1"
             android:gravity="center"
-            android:text="@string/login_password"
+            android:text="@string/face_management"
             android:textColor="@color/black"
             android:textSize="16dp"
             android:textStyle="bold" />

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

@@ -16,14 +16,6 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent" />
 
-    <View
-        android:id="@+id/statusBarPlaceholder"
-        android:layout_width="match_parent"
-        android:layout_height="36dp"
-        android:background="#26000000"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintBottom_toTopOf="@+id/topContainer" />
-
     <androidx.constraintlayout.widget.ConstraintLayout
         android:id="@+id/topContainer"
         android:layout_width="0dp"
@@ -32,7 +24,7 @@
         android:paddingTop="8dp"
         android:paddingEnd="16dp"
         android:paddingBottom="8dp"
-        app:layout_constraintTop_toBottomOf="@id/statusBarPlaceholder"
+        app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent">