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androidandroid-mediaplayerandroid-8.0-oreo

Android MediaPlayer won't play music on API 26+

I have an app that streams music for the user, this code works fine ok on devices running Android up to API 25, when i test in a device running API 26 or greater the Music wont play and wont show an error message either, attached is my log when using API 28 device.

What i have tried:

  • MediaPlayer.setAudioStreamType(int streamtype) Deprecated so i implemented AudioAttributes for API above 26
  • Different types of mp3 files, but they all play the same in api 25 and below, when i try on device or emulator with API 26 nothing happens

  • Search in the docs and examples, but all look the same i see no difference in my code

    private void playMusic() {
try {
    mMediaPlayer.reset();

    // For Android API 26 (Android 8 Oreo) and newer, specify AudioAttributes.
    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
        Log.d("Record", "setAudioAttributes()");
        AudioAttributes.Builder builder = new AudioAttributes.Builder();
        builder.setUsage(AudioAttributes.USAGE_MEDIA);
        builder.setContentType(AudioAttributes.CONTENT_TYPE_MUSIC);
        AudioAttributes attributes = builder.build();
        mMediaPlayer.setAudioAttributes(attributes);

    } else {
        Log.d("Record", "setAudioStreamType()");
        mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
    }

    mMediaPlayer.setDataSource(String.format("http://www.server.com/mp3/%s.mp3", mp3File));
    mMediaPlayer.prepareAsync();
    mMediaPlayer.start();

} catch (IOException e) {
    Log.d("Record", "error playing mp3");
    e.printStackTrace();
}
}

Log

2019-04-04 17:51:38.911 2947-24864/com.roneskinder.karaoke 
V/MediaPlayer: resetDrmState:  mDrmInfo=null mDrmProvisioningThread=null mPrepareDrmInProgress=false mActiveDrmScheme=false
2019-04-04 17:51:38.911 2947-24864/com.roneskinder.karaoke V/MediaPlayer: cleanDrmObj: mDrmObj=null mDrmSessionId=null
2019-04-04 17:51:38.913 2947-3054/com.roneskinder.karaoke D/EGL_emulation: eglMakeCurrent: 0xe830ce20: ver 3 0 (tinfo 0xe8315bd0)
2019-04-04 17:51:38.915 2947-24864/com.roneskinder.karaoke V/MediaHTTPService: MediaHTTPService(android.media.MediaHTTPService@aa03fa3): Cookies: null
2019-04-04 17:51:38.920 2947-4147/com.roneskinder.karaoke V/MediaHTTPService: makeHTTPConnection: CookieHandler (java.net.CookieManager@ead45b3) exists.
2019-04-04 17:51:38.920 2947-4147/com.roneskinder.karaoke V/MediaHTTPService: makeHTTPConnection(android.media.MediaHTTPService@aa03fa3): cookieHandler: java.net.CookieManager@ead45b3 Cookies: null
Solution

  • You need to define a res/xml/network_security_config.xml and permit HTTP for that host:

    <?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
        <domain includeSubdomains="true">server.com</domain>
    </domain-config>
</network-security-config>

    That network_security_config.xml also needs to be referenced in the Manifest.xml:

    <?xml version="1.0" encoding="utf-8"?>
<manifest
    ...>
    <application
        android:networkSecurityConfig="@xml/network_security_config"
        ...>
            ...
    </application>
</manifest>

    The SDK documentation explains it all in detail - and this applies to all network traffic an app creates.

    Instead of lowering the security standards, upgrading the connection to HTTPS should be preferred.

    And concerning that one deprecated method .setAudioStreamType(), use .setAudioAttributes() instead - as your code already does. It does not seem to be the "main problem" here; verified that.