♻️ Updated plugin name

.gitignore

@@ -52,12 +52,12 @@ build/
 !**/ios/**/default.perspectivev3
 !/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages
 
-/audio_wave.iml
+/audio_waveforms.iml
 
 .idea/instapk.xml
 instapk.log*
 ios/Frameworks/
 ios/Runner.xcworkspace/xcshareddata/
 example/ios/Flutter/flutter_export_environment.sh
-audio_wave.iml
+audio_waveforms.iml
 pubspec.lock

README.md

@@ -1,4 +1,4 @@
-# audio_wave
+# audio_waveforms
 
 A new Flutter project.
 

android/build.gradle

@@ -1,4 +1,4 @@
-group 'com.simform.audiowave.audio_wave'
+group 'com.simform.audio_waveforms'
 version '1.0-SNAPSHOT'
 
 buildscript {

android/settings.gradle

@@ -1 +1 @@
-rootProject.name = 'audio_wave'
+rootProject.name = 'audio_waveforms'

android/src/main/AndroidManifest.xml

@@ -1,3 +1,3 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-  package="com.simform.audiowave.audio_wave">
+  package="com.simform.audio_waveforms">
 </manifest>

android/src/main/kotlin/com/simform/audiowave/audio_wave/AudioWaveMethodCall.kt → android/src/main/kotlin/com/simform/audio_waveforms/AudioWaveformsMethodformsCall.kt

@@ -1,4 +1,4 @@
-package com.simform.audiowave.audio_wave
+package com.simform.audio_waveforms
 
 import android.Manifest
 import android.app.Activity
@@ -14,10 +14,10 @@ import java.io.IOException
 import java.lang.IllegalStateException
 import kotlin.math.log10
 
-private const val LOG_TAG = "AudioWave"
+private const val LOG_TAG = "AudioWaveforms"
 private const val RECORD_AUDIO_REQUEST_CODE = 1001
 
-class AudioWaveMethodCall : PluginRegistry.RequestPermissionsResultListener {
+class AudioWaveformsMethodCall : PluginRegistry.RequestPermissionsResultListener {
     private var permissions = arrayOf(Manifest.permission.RECORD_AUDIO)
     fun getDecibel(result: MethodChannel.Result, recorder: MediaRecorder?) {
         val db = 20 * log10((recorder?.maxAmplitude?.toDouble() ?: 0.0 / 32768.0))

android/src/main/kotlin/com/simform/audio_waveforms/AudioWaveformsPlugin.kt

@@ -0,0 +1,141 @@
+package com.simform.audio_waveforms
+
+import android.app.Activity
+import android.media.MediaRecorder
+import android.os.Build
+import android.util.Log
+import androidx.annotation.NonNull
+import androidx.annotation.RequiresApi
+
+import io.flutter.embedding.engine.plugins.FlutterPlugin
+import io.flutter.embedding.engine.plugins.activity.ActivityAware
+import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+import io.flutter.plugin.common.MethodChannel.MethodCallHandler
+import io.flutter.plugin.common.MethodChannel.Result
+import java.io.File
+import java.io.IOException
+import java.text.DateFormat.getDateTimeInstance
+import java.text.SimpleDateFormat
+import java.util.*
+
+/** AudioWaveformsPlugin */
+class AudioWaveformsPlugin : FlutterPlugin, MethodCallHandler, ActivityAware {
+  private lateinit var channel: MethodChannel
+  private var recorder: MediaRecorder? = null
+  private var activity: Activity? = null
+  private lateinit var audioWaveMethodCall: AudioWaveformsMethodCall
+  private var path: String? = null
+  private var codec: Int = 0
+  private var sampleRate: Int = 16000
+
+  object Constants {
+    const val initRecorder = "initRecorder"
+    const val startRecording = "startRecording"
+    const val stopRecording = "stopRecording"
+    const val pauseRecording = "pauseRecording"
+    const val resumeRecording = "resumeRecording"
+    const val getDecibel = "getDecibel"
+    const val checkPermission = "checkPermission"
+    const val path = "path"
+    const val LOG_TAG = "AudioWave"
+    const val methodChannelName = "simform_audio_waveforms_plugin/methods"
+    const val enCoder = "enCoder"
+    const val sampleRate = "sampleRate"
+    const val fileNameFormat = "dd-MM-yy-hh-mm-ss"
+  }
+
+  override fun onAttachedToEngine(@NonNull flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
+    channel = MethodChannel(flutterPluginBinding.binaryMessenger, Constants.methodChannelName)
+    channel.setMethodCallHandler(this)
+    audioWaveMethodCall = AudioWaveformsMethodCall()
+  }
+
+  @RequiresApi(Build.VERSION_CODES.N)
+  override fun onMethodCall(@NonNull call: MethodCall, @NonNull result: Result) {
+    when (call.method) {
+      Constants.initRecorder -> {
+        path = call.argument(Constants.path) as String?
+        codec = (call.argument(Constants.enCoder) as Int?) ?: 0
+        sampleRate = (call.argument(Constants.sampleRate) as Int?) ?: 16000
+        checkPathAndInitialiseRecorder(result, codec, sampleRate)
+      }
+      Constants.startRecording -> audioWaveMethodCall.startRecorder(result, recorder)
+      Constants.stopRecording -> {
+        audioWaveMethodCall.stopRecording(result, recorder, path!!)
+        recorder = null
+      }
+      Constants.pauseRecording -> audioWaveMethodCall.pauseRecording(result, recorder)
+      Constants.resumeRecording -> audioWaveMethodCall.resumeRecording(result, recorder)
+      Constants.getDecibel -> audioWaveMethodCall.getDecibel(result, recorder)
+      Constants.checkPermission -> audioWaveMethodCall.checkPermission(result, activity)
+      else -> result.notImplemented()
+    }
+  }
+
+  @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
+  private fun checkPathAndInitialiseRecorder(
+    result: Result,
+    enCoder: Int,
+    sampleRate: Int
+  ) {
+    if (path == null) {
+      val outputDir = activity?.cacheDir
+      val outputFile: File?
+      val dateTimeInstance = SimpleDateFormat(Constants.fileNameFormat,Locale.US)
+      val currentDate = dateTimeInstance.format(Date())
+      try {
+        outputFile = File.createTempFile(currentDate, ".aac", outputDir)
+        path = outputFile.path
+        try {
+          recorder = MediaRecorder()
+        } catch (e: Exception) {
+          Log.e(Constants.LOG_TAG, "Failed to initialise Recorder")
+        }
+
+        audioWaveMethodCall.initRecorder(
+          path!!,
+          result,
+          recorder,
+          enCoder,
+          enCoder,
+          sampleRate
+        )
+      } catch (e: IOException) {
+        Log.e(Constants.LOG_TAG, "Failed to create file")
+      }
+    } else {
+      audioWaveMethodCall.initRecorder(
+        path!!,
+        result,
+        recorder,
+        enCoder,
+        enCoder,
+        sampleRate
+      )
+    }
+  }
+
+  override fun onDetachedFromEngine(@NonNull binding: FlutterPlugin.FlutterPluginBinding) {
+    channel.setMethodCallHandler(null)
+  }
+
+  override fun onAttachedToActivity(binding: ActivityPluginBinding) {
+    activity = binding.activity
+  }
+
+  override fun onDetachedFromActivityForConfigChanges() {
+    activity = null
+  }
+
+  override fun onReattachedToActivityForConfigChanges(binding: ActivityPluginBinding) {
+    activity = binding.activity
+  }
+
+  override fun onDetachedFromActivity() {
+    recorder?.release()
+    recorder = null
+    activity = null
+  }
+}