feat: Add pause / resume functionality

app/src/main/java/app/myzel394/alibi/services/AudioRecorderService.kt

@@ -49,6 +49,12 @@ class AudioRecorderService: IntervalRecorderService() {
         recorder = newRecorder
     }
 
+    override fun pause() {
+        super.pause()
+
+        resetRecorder()
+    }
+
     override fun stop() {
         super.stop()
 

app/src/main/java/app/myzel394/alibi/services/IntervalRecorderService.kt

@@ -43,6 +43,7 @@ abstract class IntervalRecorderService: ExtraRecorderInformationService() {
 
     // Make overrideable
     open fun startNewCycle() {
+        counter += 1
         deleteOldRecordings()
     }
 
@@ -89,8 +90,11 @@ abstract class IntervalRecorderService: ExtraRecorderInformationService() {
     }
 
     override fun resume() {
-        super.resume()
         createTimer()
+
+        // We first want to start our timers, so the `ExtraRecorderInformationService` can fetch
+        // amplitudes
+        super.resume()
     }
 
     override fun stop() {

app/src/main/java/app/myzel394/alibi/ui/components/AudioRecorder/molecules/RecordingStatus.kt

@@ -21,10 +21,14 @@ import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Delete
+import androidx.compose.material.icons.filled.Pause
+import androidx.compose.material.icons.filled.PlayArrow
 import androidx.compose.material.icons.filled.Save
 import androidx.compose.material3.Button
 import androidx.compose.material3.ButtonDefaults
+import androidx.compose.material3.FloatingActionButton
 import androidx.compose.material3.Icon
+import androidx.compose.material3.LargeFloatingActionButton
 import androidx.compose.material3.LinearProgressIndicator
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
@@ -99,8 +103,6 @@ fun RecordingStatus(
                 verticalAlignment = Alignment.CenterVertically,
                 horizontalArrangement = Arrangement.Center,
             ) {
-                val distance = Duration.between(audioRecorder.recorderService!!.recordingStart, now).toMillis()
-
                 Pulsating {
                     Box(
                         modifier = Modifier
@@ -111,7 +113,7 @@ fun RecordingStatus(
                 }
                 Spacer(modifier = Modifier.width(16.dp))
                 Text(
-                    text = formatDuration(distance),
+                    text = formatDuration(audioRecorder.recordingTime!!),
                     style = MaterialTheme.typography.headlineLarge,
                 )
             }
@@ -164,6 +166,27 @@ fun RecordingStatus(
             }
         }
 
+        val pauseLabel = stringResource(R.string.ui_audioRecorder_action_pause_label)
+        val resumeLabel = stringResource(R.string.ui_audioRecorder_action_resume_label)
+        LargeFloatingActionButton(
+            modifier = Modifier
+                .semantics {
+                    contentDescription = if (audioRecorder.isPaused) resumeLabel else pauseLabel
+                },
+            onClick = {
+                if (audioRecorder.isPaused) {
+                    audioRecorder.resumeRecording()
+                } else {
+                    audioRecorder.pauseRecording()
+                }
+            },
+        ) {
+            Icon(
+                if (audioRecorder.isPaused) Icons.Default.PlayArrow else Icons.Default.Pause,
+                contentDescription = null,
+            )
+        }
+
         val alpha by animateFloatAsState(if (progressVisible) 1f else 0f, tween(1000))
         val label = stringResource(R.string.ui_audioRecorder_action_save_label)
 

app/src/main/java/app/myzel394/alibi/ui/models/AudioRecorderModel.kt

@@ -30,6 +30,9 @@ class AudioRecorderModel: ViewModel() {
     val isInRecording: Boolean
         get() = recorderState !== RecorderState.IDLE && recordingTime != null
 
+    val isPaused: Boolean
+        get() = recorderState === RecorderState.PAUSED
+
     val progress: Float
         get() = (recordingTime!! / recorderService!!.settings!!.maxDuration).toFloat()
 
@@ -96,6 +99,14 @@ class AudioRecorderModel: ViewModel() {
         reset()
     }
 
+    fun pauseRecording() {
+        recorderService!!.changeState(RecorderState.PAUSED)
+    }
+
+    fun resumeRecording() {
+        recorderService!!.changeState(RecorderState.RECORDING)
+    }
+
     fun setMaxAmplitudesAmount(amount: Int) {
         recorderService?.amplitudesAmount = amount
     }

app/src/main/res/values/strings.xml

@@ -22,6 +22,8 @@
     <string name="ui_audioRecorder_action_delete_label">Delete</string>
     <string name="ui_audioRecorder_action_delete_confirm_title">Delete Recording?</string>
     <string name="ui_audioRecorder_action_delete_confirm_message">Are you sure you want to delete this recording?</string>
+    <string name="ui_audioRecorder_action_pause_label">Pause Recording</string>
+    <string name="ui_audioRecorder_action_resume_label">Resume Recording</string>
     <string name="ui_audioRecorder_action_save_label">Save Recording</string>
     <string name="ui_audioRecorder_action_start_description">Alibi will continue recording in the background and store the last <xliff:g name="durationInMinutes">%s</xliff:g> minutes at your request</string>
     <string name="ui_audioRecorder_action_save_processing_dialog_title">Processing</string>