feat: implement MediaPlayer voice alert and confirm-to-mute logic

app/src/main/java/com/stand/standapp/TempCallActivity.kt

@@ -26,6 +26,8 @@ class TempCallActivity : AppCompatActivity() {
     private val MIN_SPEAK_DURATION = 200L
     private val handler = Handler(Looper.getMainLooper())
     private var pulseAnimator: ObjectAnimator? = null
+    private var alertPlayer: android.media.MediaPlayer? = null
+    private var alertPlayCount = 0
 
     companion object {
         @Volatile
@@ -102,6 +104,7 @@ class TempCallActivity : AppCompatActivity() {
         setupPttButton()
         setupHangupButton()
         startPulseAnimation()
+        startVoiceAlert()
     }
 
     override fun onResume() {
@@ -119,6 +122,7 @@ class TempCallActivity : AppCompatActivity() {
             }
             MainActivity.executeJs("onTempCallStateChanged('" + if (isMinimized) "minimized" else "destroyed" + "')")
         }
+        stopVoiceAlert()
     }
 
     // 拦截返回键
@@ -280,4 +284,51 @@ class TempCallActivity : AppCompatActivity() {
             }
         }
     }
+
+    private fun startVoiceAlert() {
+        try {
+            findViewById<Button>(R.id.btn_confirm_alert)?.apply {
+                visibility = View.VISIBLE
+                setOnClickListener {
+                    stopVoiceAlert()
+                }
+            }
+            alertPlayCount = 0
+            alertPlayer = android.media.MediaPlayer.create(this, R.raw.pull_alert).apply {
+                setOnCompletionListener {
+                    alertPlayCount++
+                    if (alertPlayCount < 3) {
+                        try {
+                            it.start()
+                        } catch (e: Exception) {
+                            timber.log.Timber.tag("TempCallAlert").e(e, "Error repeating voice play")
+                            stopVoiceAlert()
+                        }
+                    } else {
+                        stopVoiceAlert()
+                    }
+                }
+                start()
+            }
+        } catch (e: Exception) {
+            timber.log.Timber.tag("TempCallAlert").e(e, "Error initializing MediaPlayer")
+            findViewById<Button>(R.id.btn_confirm_alert)?.visibility = View.GONE
+        }
+    }
+
+    private fun stopVoiceAlert() {
+        try {
+            findViewById<Button>(R.id.btn_confirm_alert)?.visibility = View.GONE
+            alertPlayer?.let { player ->
+                if (player.isPlaying) {
+                    player.stop()
+                }
+                player.release()
+            }
+        } catch (e: Exception) {
+            timber.log.Timber.tag("TempCallAlert").e(e, "Error stopping MediaPlayer")
+        } finally {
+            alertPlayer = null
+        }
+    }
 }