Update Android app login, home, and face verification flows.

Sync current local UI and activity changes to remote repository.

Made-with: Cursor

app/src/main/java/com/example/defenseapplication/view/FaceAnalyzer.kt

@@ -1,4 +1,44 @@
 package com.example.defenseapplication.view
 
-class FaceAnalyzer {
+import android.os.Handler
+import android.os.Looper
+import android.util.Log
+import androidx.camera.core.ExperimentalGetImage
+import androidx.camera.core.ImageAnalysis
+import androidx.camera.core.ImageProxy
+import com.google.mlkit.vision.common.InputImage
+import com.google.mlkit.vision.face.FaceDetector
+/*
+* 人脸分析器
+* */
+@ExperimentalGetImage
+class FaceAnalyzer(
+    private val detector: FaceDetector?,
+    private val overlayView: FaceOverlayView
+) : ImageAnalysis.Analyzer {
+
+    override fun analyze(imageProxy: ImageProxy) {
+        if (detector == null) {
+            imageProxy.close()
+            return
+        }
+        val mediaImage = imageProxy.image ?: run {
+            imageProxy.close()
+            return
+        }
+        val image = InputImage.fromMediaImage(mediaImage, imageProxy.imageInfo.rotationDegrees)
+
+        detector.process(image)
+            .addOnSuccessListener { faces ->
+                Handler(Looper.getMainLooper()).post {
+                    overlayView.setFaces(faces)
+                }
+            }
+            .addOnFailureListener { e ->
+                Log.e("FaceAnalyzer", "人脸检测失败", e)
+            }
+            .addOnCompleteListener {
+                imageProxy.close()
+            }
+    }
 }