How to Resolve Android Studio Error while Trying to Play MID File

Question

Hello. I’m learning android and I’m trying to play a file. MID in my app.

On Activity Main has this code:

package com.micsgsoftwares.exemploplayermusic;

import androidx.appcompat.app.AppCompatActivity;


import android.media.MediaPlayer;

import android.os.Bundle;
import android.view.View;

public class MainActivity extends AppCompatActivity {

    public MediaPlayer mediaPlayer;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mediaPlayer = MediaPlayer.create(this, R.raw.h001);
    }

    public void CliqueBotao(View v){

        mediaPlayer.start(); // no need to call prepare(); create() does that for you
    }
}

The h001 file is in the res raw folder. I already put other files, only mp3, and did not show any error and played the file.

The error shown is as follows::

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.examplesoftware.exemploplayermusic, PID: 4890
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.examplesoftware.exemploplayermusic/com.examplesoftware.exemploplayermusic.MainActivity}: android.content.res.Resources$NotFoundException: File res/raw/h001.MID from drawable resource ID #0x7f0e0000
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
        at android.app.ActivityThread.-wrap11(ActivityThread.java)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:148)
        at android.app.ActivityThread.main(ActivityThread.java:5417)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
     Caused by: android.content.res.Resources$NotFoundException: File res/raw/h001.MID from drawable resource ID #0x7f0e0000
        at android.content.res.Resources.openRawResourceFd(Resources.java:1315)
        at android.media.MediaPlayer.create(MediaPlayer.java:937)
        at android.media.MediaPlayer.create(MediaPlayer.java:920)
        at com.examplesoftware.exemploplayermusic.MainActivity.onCreate(MainActivity.java:18)
        at android.app.Activity.performCreate(Activity.java:6237)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
        at android.app.ActivityThread.-wrap11(ActivityThread.java) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
        at android.os.Handler.dispatchMessage(Handler.java:102) 
        at android.os.Looper.loop(Looper.java:148) 
        at android.app.ActivityThread.main(ActivityThread.java:5417) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
     Caused by: java.io.FileNotFoundException: This file can not be opened as a file descriptor; it is probably compressed
        at android.content.res.AssetManager.openNonAssetFdNative(Native Method)
        at android.content.res.AssetManager.openNonAssetFd(AssetManager.java:426)
        at android.content.res.Resources.openRawResourceFd(Resources.java:1312)
        at android.media.MediaPlayer.create(MediaPlayer.java:937) 
        at android.media.MediaPlayer.create(MediaPlayer.java:920) 
        at com.micsgsoftwares.exemploplayermusic.MainActivity.onCreate(MainActivity.java:18) 
        at android.app.Activity.performCreate(Activity.java:6237) 
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
        at android.app.ActivityThread.-wrap11(ActivityThread.java) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
        at android.os.Handler.dispatchMessage(Handler.java:102) 
        at android.os.Looper.loop(Looper.java:148) 
        at android.app.ActivityThread.main(ActivityThread.java:5417) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

I would like you to help me correct these mistakes.

---

EDIT

• Android usage 6.0 api 23.

I partially solved the problem by converting the MID files to mp3. Still more I wonder why I can’t play MID files on android if in the documentation of android studio it says you can play MID files: link: https://developer.android.com/guide/topics/media/mediaplayer?hl=pt-br#mediaplayer

One of the most important components of the media framework is the class Mediaplayer. An object of this class can search, decode and play audio and video with a minimum amount of setup. It is compatible with several different media sources such as:

• Local resources
• Internal Uris, as one you can get from a content solver
• External Urls (streaming)

To view a list of media formats compatible with Android, see the page Supported media formats.

I consulted the page Compatible media formats:

link: https://developer.android.com/guide/topics/media/formats?hl=pt-br#audio-codecs