fixed a bug

android/sample-app/src/main/java/cn/learningpad/oraltrainer/sample/MainActivity.kt

@@ -100,6 +100,7 @@ class MainActivity : Activity() {
     private var mediaRecorder: MediaRecorder? = null
     private var recordingFile: File? = null
     private val dubSegments = mutableMapOf<Int, File>()
+    private val latestScores = mutableMapOf<Int, ImitationAssessmentResult>()
     private var mergedDubFile: File? = null
     private var dubbingStatusText: TextView? = null
     private var dubbingPlayback = false
@@ -1207,6 +1208,25 @@ class MainActivity : Activity() {
                     "{\"sentence_index\":$it}"
                 }
                 text("segments", payload)
+                val scores = dubSegments.keys.sorted().map { index ->
+                    latestScores[index]
+                }.filterNotNull().joinToString(",", "[", "]") { score ->
+                    buildString {
+                        append("{\"sentence_index\":")
+                        append(score.sentenceIndex)
+                        if (score.overallScore != null) {
+                            append(",\"overall_score\":")
+                            append(score.overallScore)
+                        }
+                        score.recognizedText?.let { text ->
+                            append(",\"recognized_text\":\"")
+                            append(text.replace("\\", "\\\\").replace("\"", "\\\""))
+                            append("\"")
+                        }
+                        append("}")
+                    }
+                }
+                text("scores", scores)
                 dubSegments.toSortedMap().forEach { (index, file) ->
                     output.writeBytes("--$boundary\r\n")
                     output.writeBytes(
@@ -1260,6 +1280,9 @@ class MainActivity : Activity() {
                     if (::testStatusText.isInitialized) {
                         applyAssessmentResult(result)
                     }
+                    sentence.index.let { index ->
+                        latestScores[index] = result
+                    }
                 }
 
                 override fun onError(error: Throwable) {