fix(activity): 修复 PrepareCookActivity 相机未就绪时触发拍照导致报错的问题

app/src/main/java/com/shuwei/dish/match/ui/PrepareCookActivity.kt

@@ -160,12 +160,14 @@ class PrepareCookActivity : BaseActivity() {
 
     private val isTakingPhoto = AtomicBoolean(false)
     private var lastWeight = 0.0
+    private var currentWeight = 0.0
 
     /**
      * 重量稳定时触发菜品识别
      * @param weight 当前稳定重量
      */
     private fun recognizeFood(weight: Double) {
+        this.currentWeight = weight
         if (weight < WEIGHT_RECOGNIZE_VALUE) {
             if (recognizeDialog.isShowing) recognizeDialog.dismiss()
             return
@@ -176,7 +178,6 @@ class PrepareCookActivity : BaseActivity() {
             succCallback = cameraSuccessCallback,
             failCallback = cameraFailureCallback
         )
-        lastWeight = weight
     }
 
     /**
@@ -500,6 +501,7 @@ class PrepareCookActivity : BaseActivity() {
         }
         recognizeDialog.loadData(foodList)
         isTakingPhoto.set(false)
+        lastWeight = currentWeight
     }
 
 }

app/src/main/java/com/shuwei/dish/match/utils/CameraUtils.kt

@@ -6,16 +6,22 @@ import androidx.camera.core.CameraSelector
 import androidx.camera.view.CameraController
 import androidx.camera.view.LifecycleCameraController
 import androidx.camera.view.PreviewView
+import androidx.core.content.ContextCompat
 
 class CameraUtils(private var activity: ComponentActivity) {
 
     private var cameraController: LifecycleCameraController? = null
     private var photoCaptureHelper: PhotoCaptureHelper? = null
     private var failCallback: ((msg: String) -> Unit)? = null
+    private var isCameraReady = false
 
-    //    private var isCameraReady = false
     fun takePhoto(succCallback: (Uri) -> Unit, failCallback: (msg: String) -> Unit = { }) {
         this.failCallback = failCallback
+        // 相机未就绪时静默返回，避免触发错误提示
+        if (!isCameraReady) {
+            failCallback("")
+            return
+        }
         cameraController?.let {
             if (photoCaptureHelper == null) {
                 initCaptureHelper()
@@ -74,10 +80,16 @@ class CameraUtils(private var activity: ComponentActivity) {
     }
 
     fun bind() {
+        isCameraReady = false
         cameraController?.bindToLifecycle(activity)
+        // 监听相机初始化完成，就绪后才允许拍照
+        cameraController?.initializationFuture?.addListener({
+            isCameraReady = true
+        }, ContextCompat.getMainExecutor(activity))
     }
 
     fun unbind() {
+        isCameraReady = false
         cameraController?.unbind()
     }