Android Studio – Audio Won't Stop Playing When Using MediaPlayer In Andriod Studio

I’ve developed a simple Android application where you can play and stop audio using MediaPlayer. However the audio doesn’t stop when requested to.

Here is a breakdown of the app. There are two buttons in a column. The first button prepares and plays an audio file. The second stops playing the audio file.

Here is the code for the MainActivity

// Sound Effect Uri
val soundEffectUri = "android.resource://com.example.audiotest/raw/sound_effect"

// App Layout
Column(
        modifier = Modifier.fillMaxSize(),
        verticalArrangement = Arrangement.Center,
        horizontalAlignment = Alignment.CenterHorizontally
    ) {

        // Button That Plays Audio
    Button(onClick = { AudioClass(this).play() })
        { Text(text = "Start") }

        // Button That Stops Audio
        Button(onClick = { AudioClass(this).stop() })
        { Text(text = "Stop") }

The logic for the MediaPlayer is kept in a seperate class. Here it is

// Class That Holds MediaPlay Logic
class AudioClass(context: Context) {

    // Instance Of MediaPlayer
    val mediaPlayer = MediaPlayer()

    // MediaPlayer Attributes
    init {
        mediaPlayer.setDataSource(context, Uri.parse(soundEffectUri))
        mediaPlayer.setAudioStreamType(AudioManager.STREAM_ALARM)
        mediaPlayer.isLooping = true
    }
 
    // Function That Prepares And Starts Audio
    fun play() {
        mediaPlayer.prepare()
        mediaPlayer.start()
    }

    // Function That Stops Audio
    fun stop() {
        mediaPlayer.stop()
    }

}

The problem of audio not stopping only occurs when the MediaPlayer is initialized outside of an Activity or Composable. I’d like to initialize it globally so that I can use it where ever it’s needed.

Here is what the log cat says whenever I press the button that stops the audio.

2024-09-23 19:10:55.088 22661-22661 MediaPlayerNative com.example.audiotest E stop called in state 2, mPlayer(0xd25cb1e0)

2024-09-23 19:10:55.088 22661-22661 MediaPlayerNative com.example.audiotest E error (-38, 0)

2024-09-23 19:10:55.149 22661-22661 MediaPlayer com.example.audiotest E Error (-38,0)

Thanks for taking your time to read this question.