Play audio from assets with SQLite

Question

My problem is that my code was not working. i have 100+ mp3 store in my assets/anthem folder.

flAnthem = c.getString(c.getColumnIndex(KEY_ANTHEM));
flAnthemSDCard = c.getString(c.getColumnIndex(KEY_ANTHEM_SDCARD));

AssetManager assetManager= getAssets();
InputStream inputStream = null;
try{
    inputStream = assetManager.open("anthem/" + flAnthem);
    mediaPlayer.setDataSource(String.valueOf(inputStream));
    mediaPlayer.prepare();
    mediaPlayer.start();
}catch(IOException e){
    e.printStackTrace();
}

Hi, in what way is your code "not working"? Do you get any errors in Logcat? — Michael Dodd, Sep 03 '18 at 16:11
Just double checking for any silly things, is the media file playable from another app or your PC? And is your volume at a correct level? Could you place a `Log.i` statement after `mediaPlayer.start()`, and see if it appears in Logcat? If your code is not going into the catch block then that suggests your code is running fine. — Michael Dodd, Sep 03 '18 at 16:27
is my code right? or maybe not? because i only put the name of mp3 inside my database — jopo, Sep 03 '18 at 16:32
I'd recommend reading up about [debugging with breakpoints](https://developer.android.com/studio/debug/#breakPoints) to make sure that your code does properly run through that `try` block. As it stands there isn't really enough information to answer your question well. — Michael Dodd, Sep 03 '18 at 16:34
Give me a few hours and I'll try and recreate your issue when I'm at home using the code you've provided. — Michael Dodd, Sep 03 '18 at 16:37

Khaled Lela · Accepted Answer · 2018-09-03T20:13:31.667

1

Replace this

inputStream = assetManager.open("anthem/" + flAnthem);
mediaPlayer.setDataSource(String.valueOf(inputStream)); //DataSource is not correctly setted.

By Using AssetFileDescriptor

flAnthem = c.getString(c.getColumnIndex(KEY_ANTHEM)) + ".mp3"; // don't forget extension 

AssetFileDescriptor descriptor = getAssets().openFd("anthem/"+mediaName);
mediaPlayer.setDataSource(descriptor.getFileDescriptor(), descriptor.getStartOffset(), descriptor.getLength());

BTW

Check this question for more info about, Where do I place the 'assets' folder in Android Studio?.

edited Sep 03 '18 at 20:13

answered Sep 03 '18 at 16:22

Khaled Lela

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Could you please explain **how** this will help with OP's issue? Why are you adding an extra layer of complexity by taking the ringer mode into account? And OP is obtaining a resource using an `AssetManager`, not a resource ID. – Michael Dodd Sep 03 '18 at 16:25
I am updating my question now to fix this, Thanks for your feedback – Khaled Lela Sep 03 '18 at 16:27
@MichaelDodd I fixed my answer using `AssetFileDescriptor`, **BTW** i created a sample app and that worked my me. – Khaled Lela Sep 03 '18 at 17:45
what is timber for? – jopo Sep 03 '18 at 18:03
@jopo `Timber` is a Logger library by **JakeWharton** https://github.com/JakeWharton/timber – Khaled Lela Sep 03 '18 at 19:10
@MichaelDodd Thanks for your kindly feedback about answer shall be describe the OP's problem and step for fixing, Not just some code or another way for fixing the issue *(Like i did)*, Your suggestion will provide more help for OP and Others when search for same issue, But i intend to add more info when have time as update. – Khaled Lela Sep 03 '18 at 19:33
i remove timber and change it into e.printStackTrace(); , but it works fine – jopo Sep 03 '18 at 19:44
@jopo Updated my answer by replacing `Timber` with `ex.printStackTrace();` Happy that helped you. – Khaled Lela Sep 03 '18 at 19:48
@MichaelDodd Simplify my answer and described OP's issue, Waiting for yours Vote up :) – Khaled Lela Sep 03 '18 at 20:16
1

@KhaledLela Duely noted, thanks for making Stack Overflow a more helpful place for future readers ;) – Michael Dodd Sep 03 '18 at 20:55
hello, last night my mp3 is working but now why still playing when i click the next button. – jopo Sep 04 '18 at 05:24
i didnt change my code but my music still playing when i pressed next button. last night my mp3 is work when i play next it stop and when i guessed it will play the music – jopo Sep 04 '18 at 05:32
@jopo If old media keep running after pressing next button, You just need to stop old `mediaPlayer.stop();` before start playing new media `mediaPlayer.start();` – Khaled Lela Sep 04 '18 at 10:03
Is it going to stop because my next button is at my dialog box different activity/java – jopo Sep 04 '18 at 12:55
If you don't have globe reference to `MediaPlayer`, Then next button switch activity it will stop, Feel free to ask another question if you still have an issue. – Khaled Lela Sep 04 '18 at 15:52

Play audio from assets with SQLite

1 Answers1