Add metering and progress upload interval configuration in Android

android/src/main/java/com/rnim/rn/audio/AudioRecorderManager.java

@@ -59,6 +59,7 @@ class AudioRecorderManager extends ReactContextBaseJavaModule {
   private boolean isPauseResumeCapable = false;
   private Method pauseMethod = null;
   private Method resumeMethod = null;
+  private int progressUpdateInterval = 1000;
 
 
   public AudioRecorderManager(ReactApplicationContext reactContext) {
@@ -120,6 +121,7 @@ public void prepareRecordingAtPath(String recordingPath, ReadableMap recordingSe
       recorder.setAudioChannels(recordingSettings.getInt("Channels"));
       recorder.setAudioEncodingBitRate(recordingSettings.getInt("AudioEncodingBitRate"));
       recorder.setOutputFile(recordingPath);
+      setProgressUpdateInterval(recordingSettings.getInt("ProgressUpdateInterval"));
     }
     catch(final Exception e) {
       logAndRejectPromise(promise, "COULDNT_CONFIGURE_MEDIA_RECORDER" , "Make sure you've added RECORD_AUDIO permission to your AndroidManifest.xml file "+e.getMessage());
@@ -283,10 +285,18 @@ public void run() {
         if (!isPaused) {
           WritableMap body = Arguments.createMap();
           body.putDouble("currentTime", stopWatch.getTimeSeconds());
+
+          int amplitude = recorder.getMaxAmplitude();
+          if (amplitude == 0) {
+            body.putInt("currentMetering", -160);
+          } else {
+            body.putInt("currentMetering", (int) (20 * Math.log(((double) amplitude) / 32767d)));
+          }
+
           sendEvent("recordingProgress", body);
         }
       }
-    }, 0, 1000);
+    }, 0, progressUpdateInterval);
   }
 
   private void stopTimer(){
@@ -307,4 +317,13 @@ private void logAndRejectPromise(Promise promise, String errorCode, String error
     Log.e(TAG, errorMessage);
     promise.reject(errorCode, errorMessage);
   }
+
+
+  private void setProgressUpdateInterval(int progressUpdateInterval) {
+    if(progressUpdateInterval < 100) {
+      this.progressUpdateInterval = 100;
+    } else {
+      this.progressUpdateInterval = progressUpdateInterval;
+    }
+  }
 }

index.js

@@ -40,7 +40,8 @@ var AudioRecorder = {
       MeteringEnabled: false,
       MeasurementMode: false,
       AudioEncodingBitRate: 32000,
-      IncludeBase64: false
+      IncludeBase64: false,
+      ProgressUpdateInterval: 1000,
     };
 
     var recordingOptions = {...defaultOptions, ...options};