Implement Builder pattern for WaveRecorder class instantiation

Author: squti

android-wave-recorder/src/main/java/com/github/squti/androidwaverecorder/WaveRecorder.kt

@@ -53,12 +53,12 @@ class WaveRecorder(private var filePath: String) {
     /**
      * Configuration for recording audio file.
      */
+    @Deprecated(
+        "Use configureWaveSettings to set recording configuration. Access to this property will not be available in the future."
+    )
     var waveConfig: WaveConfig = WaveConfig()
 
-    /**
-     * Configuration for Silence Detection.
-     */
-    var silenceDetectionConfig: SilenceDetectionConfig = SilenceDetectionConfig(30)
+    private var silenceDetectionConfig: SilenceDetectionConfig = SilenceDetectionConfig(30)
 
     /**
      * Register a callback to be invoked in every recorded chunk of audio data
@@ -106,6 +106,22 @@ class WaveRecorder(private var filePath: String) {
     private var silenceDuration = 0L
     private var currentState: RecorderState = RecorderState.STOP
 
+    /**
+     * Set configuration for recording audio file.
+     */
+    fun configureWaveSettings(block: WaveConfig.() -> Unit): WaveRecorder {
+        waveConfig.apply(block)
+        return this
+    }
+
+    /**
+     * Set configuration for Silence Detection.
+     */
+    fun configureSilenceDetection(block: SilenceDetectionConfig.() -> Unit): WaveRecorder {
+        silenceDetectionConfig.apply(block)
+        return this
+    }
+
     /**
      * Starts audio recording asynchronously and writes recorded data chunks on storage.
      */

sample/src/main/java/com/github/squti/androidwaverecordersample/MainActivity.kt

@@ -35,7 +35,6 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.core.app.ActivityCompat
 import androidx.core.content.ContextCompat
 import com.github.squti.androidwaverecorder.RecorderState
-import com.github.squti.androidwaverecorder.SilenceDetectionConfig
 import com.github.squti.androidwaverecorder.WaveRecorder
 import com.github.squti.androidwaverecordersample.databinding.ActivityMainBinding
 import java.util.Locale
@@ -58,10 +57,15 @@ class MainActivity : AppCompatActivity() {
         filePath = filesDir.absolutePath + "/audioFile.wav"
 
         waveRecorder = WaveRecorder(filePath)
-        waveRecorder.waveConfig.sampleRate = 44100
-        waveRecorder.waveConfig.channels = AudioFormat.CHANNEL_IN_MONO
-        waveRecorder.waveConfig.audioEncoding = AudioFormat.ENCODING_PCM_32BIT
-        waveRecorder.silenceDetectionConfig = SilenceDetectionConfig(minAmplitudeThreshold = 80)
+            .configureWaveSettings {
+                sampleRate = 44100
+                channels = AudioFormat.CHANNEL_IN_STEREO
+                audioEncoding = AudioFormat.ENCODING_PCM_32BIT
+            }.configureSilenceDetection {
+                minAmplitudeThreshold = 80
+                bufferDurationInMillis = 1500
+                preSilenceDurationInMillis = 1500
+            }