fix: android build error

README.md

@@ -23,10 +23,10 @@ const pitch = await autoCorrelate(audioBuffer, sampleRate); // returns the pitch
 ### Get volume (dB)
 
 ```js
-import { getVolume } from 'react-native-pitchy';
+import { calculateVolume } from 'react-native-pitchy';
 
 const audioBuffer = new Float32Array(4096); // Dummy audio buffer
-const volume = await getVolume(audioBuffer); // returns the volume in dB
+const volume = await calculateVolume(audioBuffer); // returns the volume in dB
 ```
 
 ## Contributing

android/cpp-adapter.cpp

@@ -1,22 +1,27 @@
 #include <jni.h>
 #include "react-native-pitchy.h"
+#include <vector>
+#include <cmath>
+#include <algorithm>
+#include <numeric>
+#include <limits>
 
-extern "C"
-JNIEXPORT jdouble JNICALL
-Java_com_pitchy_PitchyModule_nativeAutoCorrelate(JNIEnv *env, jclass type, jdoubleArray buf, jdouble sampleRate) {
+extern "C" JNIEXPORT jdouble JNICALL
+Java_com_pitchy_PitchyModule_nativeAutoCorrelate(JNIEnv *env, jobject /* this */, jdoubleArray buf, jdouble sampleRate)
+{
     jsize len = env->GetArrayLength(buf);
     jdouble *bufArray = env->GetDoubleArrayElements(buf, 0);
-    std::vector<double> bufVector(bufArray, bufArray + len);
+    std::vector<double> vec(bufArray, bufArray + len);
     env->ReleaseDoubleArrayElements(buf, bufArray, 0);
-    return pitchy::autoCorrelate(bufVector, sampleRate);
+    return pitchy::autoCorrelate(vec, sampleRate);
 }
 
-extern "C"
-JNIEXPORT jdouble JNICALL
-Java_com_pitchy_PitchyModule_nativeCalculateVolume(JNIEnv *env, jclass type, jdoubleArray buf) {
+extern "C" JNIEXPORT jdouble JNICALL
+Java_com_pitchy_PitchyModule_nativeCalculateVolume(JNIEnv *env, jobject /* this */, jdoubleArray buf)
+{
     jsize len = env->GetArrayLength(buf);
     jdouble *bufArray = env->GetDoubleArrayElements(buf, 0);
-    std::vector<double> bufVector(bufArray, bufArray + len);
+    std::vector<double> vec(bufArray, bufArray + len);
     env->ReleaseDoubleArrayElements(buf, bufArray, 0);
-    return pitchy::calculateVolume(bufVector);
+    return pitchy::calculateVolume(vec);
 }

android/src/main/java/com/pitchy/PitchyModule.kt

@@ -4,6 +4,7 @@ import com.facebook.react.bridge.ReactApplicationContext
 import com.facebook.react.bridge.ReactContextBaseJavaModule
 import com.facebook.react.bridge.ReactMethod
 import com.facebook.react.bridge.Promise
+import com.facebook.react.bridge.ReadableArray
 
 class PitchyModule(reactContext: ReactApplicationContext) :
   ReactContextBaseJavaModule(reactContext) {
@@ -13,25 +14,26 @@ class PitchyModule(reactContext: ReactApplicationContext) :
   }
 
   @ReactMethod
-  fun nativeAutoCorrelate(buf: DoubleArray, sampleRate: Double, promise: Promise) {
-    // Call native method
-    val result = autoCorrelate(buf, sampleRate)
-
-    // Resolve promise
-    promise.resolve(result)
+  fun autoCorrelate(buf: ReadableArray, sampleRate: Double, promise: Promise) {
+    val bufArray = buf.toArrayList().map { it as Double }.toDoubleArray()
+    val pitch = nativeAutoCorrelate(bufArray, sampleRate)
+    promise.resolve(pitch)
   }
 
   @ReactMethod
-  fun calculateVolume(buf: DoubleArray, promise: Promise) {
-    // Call native method
-    val result = calculateVolume(buf)
-
-    // Resolve promise
-    promise.resolve(result)
+  fun calculateVolume(buf: ReadableArray, promise: Promise) {
+    val bufArray = buf.toArrayList().map { it as Double }.toDoubleArray()
+    val volume = nativeCalculateVolume(bufArray)
+    promise.resolve(volume)
   }
 
+  private external fun nativeAutoCorrelate(buf: DoubleArray, sampleRate: Double): Double
+  private external fun nativeCalculateVolume(buf: DoubleArray): Double
 
   companion object {
     const val NAME = "Pitchy"
+    init {
+      System.loadLibrary("react-native-pitchy")
+    }
   }
-}
+}