Create Music player android apps - Android studio

Create Music/Audio Player android Application

 Using Android Studio.

What is Music / Audio player Android apps:

Music Player is An Application that enables to read internal Storage and find audio file and listing on music player array list after playable to any audio file (.mp3 or . wav ) Song.

Music Player android app Icon is below.

Music Player Icon

Here Music Player List Icon is below :

Requirement for Create Music Player Androids application :

• Hardware
• Running Windows LapTop or DeskTop
• Running Android Mobile for Testing
• Internet Connection
• Software
• Android Studio
• java jre and jdk (8.0)
• External Storage permission Link
•  
• Soft Skill
• Android Studio Skill
• Java Programming skill
• XML Language Skill
• UI Designing Skill

Now here Starting Source Code Details.

• Step 1
• Start Android Studio
• Create New Project

Empty Project Icon in Android studio

• Enter Project Name



Enter Name in the Project name

•  just like project name Music Player
• 
  

• Step 2
• insert the Source code in XML File (in file activity_main.xml)
• just file source given below:
• F:\Program\AndroidStudio\Media\MusicPlayer\app\src\main\res\layout\activity_main.xml

• Source code as given below 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp" tools:context=".MainActivity">  
<ListView 
android:id="@+id/mySongListView" 
android:layout_width="match_parent"
android:layout_height="match_parent">

 </ListView>

 </RelativeLayout>

• Step 3
• insert the Source code in JAVA File (in file MainActivity.java)
• just file source given below :
• F:\Program\AndroidStudio\Media\MusicPlayer\app\src\main\java\com\example\musicplayer\MainActivity.java

• Source code as Given Below  : MainActivityjava

package com.example.musicplayer;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

import android.Manifest;
import android.content.Intent;
import android.os.Environment;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;

import com.karumi.dexter.Dexter;
import com.karumi.dexter.PermissionToken;
import com.karumi.dexter.listener.PermissionDeniedResponse;
import com.karumi.dexter.listener.PermissionGrantedResponse;
import com.karumi.dexter.listener.PermissionRequest;
import com.karumi.dexter.listener.single.PermissionListener;

import java.io.File;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {


    ListView myListViewForSongs;
    String[] items;
    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        myListViewForSongs = (ListView) findViewById(R.id.mySongListView);

        runtimePermission();
    }

    public void runtimePermission() {
        Dexter.withContext(this)
                .withPermission(Manifest.permission.READ_EXTERNAL_STORAGE)
                .withListener(new PermissionListener() {
                    @Override   

    public void onPermissionGranted(PermissionGrantedResponse permissionGrantedResponse) {
                        display();

                    }

       @Override 

    public void onPermissionDenied(PermissionDeniedResponse permissionDeniedResponse) {

                    }

       @Override    

  public void onPermissionRationaleShouldBeShown(PermissionRequest 

permissionRequest,PermissionToken permissionToken) {
                        permissionToken.continuePermissionRequest();

                    }
                }).check();


    }
    public ArrayList<File> findSong(File file){
        ArrayList<File> arrayList = new ArrayList<>();
        File[] files = file.listFiles();

        for (File singleFile: files) {
            if (singleFile.isDirectory() && !singleFile.isHidden()){
                arrayList.addAll(findSong(singleFile));
            }
            else {
    if (singleFile.getName().endsWith(".mp3") || singleFile.getName().endsWith(".wav"))

 {

                    arrayList.add(singleFile);
                }
            }
        }
        return arrayList;
    }

  void display() {
   final ArrayList<File> mySongs = findSong(Environment.getExternalStorageDirectory());
       items = new String[mySongs.size()];
        for(int i=0;i<mySongs.size();i++) {
       items[i] = mySongs.get(i).getName().replace(".mp3", "").replace(".wav", "");
        }
   ArrayAdapter<String> myAdapter = new ArrayAdapter<String>

(this,android.R.layout.simple_list_item_1,items);
        myListViewForSongs.setAdapter(myAdapter);

        myListViewForSongs.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override

    public void onItemClick(AdapterView<?> parent, View view, int i, long id) {

       String songName = myListViewForSongs.getItemAtPosition(i).toString();
 startActivities(new Intent[]{new Intent(getApplicationContext(),

 PlayerActivity.class).putExtra("songs", mySongs).putExtra("songname",

 songName).putExtra("pos",i)});
            }
        });




    }

}

Step 4 :

  create new java class file with empty acitivity

 name as PlayerActivity

AS

PlayerActivity.java source code as below :

package com.example.musicplayer;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.graphics.PorterDuff;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.SeekBar;
import android.widget.TextView;

import java.io.File;
import java.util.ArrayList;
import java.util.concurrent.TimeUnit;

public class PlayerActivity extends AppCompatActivity {

    Button btn_pause, btn_next, btn_previous ;
    TextView songTextLabel,currentTimeLabel,remainingTimeLabel;
    SeekBar songSeekbar, volumeBar;

    static MediaPlayer myMediaPlayer;

    int position;

    ArrayList<File> mySongs;
    Thread updateseekBar;

    String sname;



    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_player);

        btn_pause = (Button) findViewById(R.id.pause);
        btn_previous = (Button) findViewById(R.id.previous);
        btn_next  = (Button) findViewById(R.id.next);

        songTextLabel = (TextView) findViewById(R.id.songLabel);

        songSeekbar = (SeekBar) findViewById(R.id.seekBar);

        currentTimeLabel = (TextView) findViewById(R.id.CTime);
        remainingTimeLabel = (TextView) findViewById(R.id.RTime);

        volumeBar = (SeekBar) findViewById(R.id.volumeBar);








        getSupportActionBar().setTitle("Now Playing");
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(true);





        updateseekBar = new Thread() {
            @Override            public void run() {
                int totaldurtion = myMediaPlayer.getDuration();
                int currentPosition = 0;

                while (currentPosition<totaldurtion) {
                    try {
                        sleep(500);
                        currentPosition = myMediaPlayer.getCurrentPosition();
                        songSeekbar.setProgress(currentPosition);

                    }
                    catch (InterruptedException e) {
                        e.printStackTrace();
                    }

                }
            }
        };






        if(myMediaPlayer!=null) {
            myMediaPlayer.stop();
            myMediaPlayer.release();

        }

        Intent i = getIntent();
        Bundle bundle = i.getExtras();
        mySongs = (ArrayList) bundle.getParcelableArrayList("songs");
        sname = mySongs.get(position).getName().toString();

        final String songName = i.getStringExtra("songname");

        songTextLabel.setText(songName);

        songTextLabel.setSelected(true);


        position = bundle.getInt("pos",0);
        Uri u = Uri.parse((mySongs.get(position).toString()));

        myMediaPlayer = MediaPlayer.create(getApplicationContext(),u);
        myMediaPlayer.start();

        songSeekbar.setMax(myMediaPlayer.getDuration());
        updateseekBar.start();

        songSeekbar.getProgressDrawable().setColorFilter(

      getResources().getColor(R.color.colorPrimary), PorterDuff.Mode.MULTIPLY);
        songSeekbar.getThumb().setColorFilter(

        getResources().getColor(R.color.colorPrimary),PorterDuff.Mode.SRC_IN);
        volumeBar.getProgressDrawable().setColorFilter(

      getResources().getColor(R.color.colorPrimary), PorterDuff.Mode.MULTIPLY);
        volumeBar.getThumb().setColorFilter(getResources().getColor( 

          R.color.colorPrimary),PorterDuff.Mode.SRC_IN);




        myMediaPlayer.setVolume(0.5f,0.5f);

        volumeBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override

            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                float volumeNum = progress/100f;
                myMediaPlayer.setVolume(volumeNum,volumeNum);

            }

            @Override         

   public void onStartTrackingTouch(SeekBar seekBar) {

            }

            @Override    

        public void onStopTrackingTouch(SeekBar seekBar) {

            }
        });





        songSeekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override       

     public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

            }

            @Override   

         public void onStartTrackingTouch(SeekBar seekBar) {

            }

            @Override   

         public void onStopTrackingTouch(SeekBar seekBar) {
                myMediaPlayer.seekTo(seekBar.getProgress());

            }
        });

        btn_pause.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View v) {
                songSeekbar.setMax(myMediaPlayer.getDuration());
                if(myMediaPlayer.isPlaying()) {
                    btn_pause.setBackgroundResource(R.drawable.icon_play);
                    myMediaPlayer.pause();

                }
                else {
                    btn_pause.setBackgroundResource(R.drawable.icon_pause);
                    myMediaPlayer.start();
                }
            }
        });

                btn_next.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View v) {
                myMediaPlayer.stop();
                myMediaPlayer.release();
                position = ((position+1)%mySongs.size());

                Uri u = Uri.parse(mySongs.get(position).toString());

                myMediaPlayer = MediaPlayer.create(getApplicationContext(),u);

                sname = mySongs.get(position).getName().toString();
                songTextLabel.setText(sname);

                myMediaPlayer.setOnBufferingUpdateListener(

                new MediaPlayer.OnBufferingUpdateListener() {
                    @Override 

                public void onBufferingUpdate(MediaPlayer mp, int percent) {
                        songSeekbar.setSecondaryProgress(percent);
                    }
                });
                myMediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
                    @Override             

       public void onPrepared(MediaPlayer mediaPlayer) {
                        btn_pause.setEnabled(true);

                    }
                });


                myMediaPlayer.start();

            }
        });


        btn_previous.setOnClickListener(new View.OnClickListener() {
            @Override 

           public void onClick(View v) {
                myMediaPlayer.stop();
                myMediaPlayer.release();

                position = ((position-1)<0)?(mySongs.size()-1):(position-1);

                Uri u = Uri.parse(mySongs.get(position).toString());
                myMediaPlayer = MediaPlayer.create(getApplicationContext(),u);

                sname = mySongs.get(position).getName().toString();

                songTextLabel.setText(sname);
                myMediaPlayer.setOnBufferingUpdateListener(

             new MediaPlayer.OnBufferingUpdateListener() {

                    @Override  

                  public void onBufferingUpdate(MediaPlayer mp, int percent) {
                        songSeekbar.setSecondaryProgress(percent);
                    }
                });
                myMediaPlayer.setOnPreparedListener(

                new MediaPlayer.OnPreparedListener() {
                    @Override    

                public void onPrepared(MediaPlayer mediaPlayer) {
                        btn_pause.setEnabled(true);

                    }
                });

                myMediaPlayer.start();
            }
        });


        new Thread(new Runnable() {
            @Override            public void run() {
                while (myMediaPlayer!=null) {
                    try {
                        Message msg = new Message();
                        msg.what = myMediaPlayer.getCurrentPosition();
                        handler.sendMessage(msg);
                        Thread.sleep(1000);

                    } catch (InterruptedException e) {}
                }
            }
        }).start();

    }
    private Handler handler = new Handler() {
        @Override        public void handleMessage(@NonNull Message msg) {
            super.handleMessage(msg);
            int currentPosition = msg.what;
            int totalTime = myMediaPlayer.getDuration();
            int remainingTime = totalTime - currentPosition;
            currentTimeLabel.setText(String.format("%d:%d",
                    TimeUnit.MILLISECONDS.toMinutes((long) currentPosition),
                    TimeUnit.MILLISECONDS.toSeconds((long) currentPosition) -
                            TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.
                                    toMinutes((long) currentPosition))));
            remainingTimeLabel.setText(String.format("- %d:%d",
                    TimeUnit.MILLISECONDS.toMinutes((long) remainingTime),
                    TimeUnit.MILLISECONDS.toSeconds((long) remainingTime) -
                            TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.
                                    toMinutes((long) remainingTime))));


        }
    };




    @Override    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
        if (item.getItemId() == android.R.id.home) {
            onBackPressed();
        }
        return super.onOptionsItemSelected(item);
    }
}

activity_player.xml     source code as below :

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    android:weightSum="10"

    tools:context=".PlayerActivity">

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="0dp"

        android:layout_weight="6.25"

        android:gravity="center"

        android:orientation="vertical">

        <ImageView

            android:id="@+id/SongImage"

            android:layout_width="250dp"

            android:layout_height="250dp"

            android:layout_marginTop="30dp"

            android:src="@color/cardview_dark_background">

        </ImageView>

<LinearLayout

    android:layout_width="match_parent"

    android:layout_height="match_parent">

        <ImageView

            android:id="@+id/lowVolume"

            android:layout_width="33dp"

            android:layout_height="38dp"

            android:layout_marginLeft="15dp"

            android:background="@drawable/icon_lowvolume"

            android:layout_marginTop="26dp"

            />

    <SeekBar

        android:id="@+id/volumeBar"

        android:layout_width="280dp"

        android:layout_height="wrap_content"

        android:layout_marginTop="35dp"

        />

    <ImageView

            android:id="@+id/highVolume"

            android:layout_width="35dp"

            android:layout_height="40dp"

            android:background="@drawable/icon_highvolume"

            android:layout_marginTop="23dp"

            />

</LinearLayout>

    </LinearLayout>

    <RelativeLayout

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:layout_weight=".5">

        <TextView

            android:id="@+id/songLabel"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:text="Song Name"

            android:layout_marginTop="35dp"

            android:ellipsize="marquee"

            android:marqueeRepeatLimit="marquee_forever"

            android:scrollHorizontally="true"

            android:singleLine="true"

            android:textAlignment="center"

            android:textColor="@color/colorPrimary"

            android:textSize="20sp"

            />

        </RelativeLayout>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="0dp"

        android:layout_weight="3">

        <RelativeLayout

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:padding="5dp"

            >
            <TextView

                android:layout_width="50dp"

                android:layout_height="15dp"

                android:id="@+id/CTime"

                android:layout_marginLeft="15dp"

                android:text="00:00" />

            <TextView    

            android:layout_width="50dp"

                android:layout_height="15dp"

                android:id="@+id/RTime"         

                 android:layout_marginLeft="225dp"

                android:text="00:00"

                android:singleLine="true"

               android:layout_toRightOf="@+id/CTime"

                />




            <SeekBar

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:id="@+id/seekBar"

                android:layout_below="@+id/CTime"

            />

            <Button

                android:layout_width="75dp"

                android:layout_height="75dp"

                android:layout_centerHorizontal="true"

                android:background="@drawable/icon_pause"

                android:layout_marginTop="25dp"

                android:id="@+id/pause"

                android:layout_below="@+id/seekBar"

/>


            <Button

                android:layout_width="55dp"

                android:layout_height="55dp"

                android:layout_marginTop="35dp"

                android:layout_toRightOf="@id/pause"

                android:id="@+id/next"

                android:background="@drawable/icon_next"

                android:layout_marginLeft="25dp"

                android:layout_below="@+id/seekBar"

/>
            <Button

                android:layout_width="55dp"

                android:layout_height="55dp"

                android:layout_marginTop="35dp"

                android:layout_marginRight="25dp"

                android:id="@+id/previous"

                android:layout_toLeftOf="@id/pause"

                android:background="@drawable/icon_previous"

                android:layout_below="@+id/seekBar"

                />
        </RelativeLayout>



    </LinearLayout>

</LinearLayout>

AndroidManifest.xml   source code as below :

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.musicplayer">

    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:roundIcon="@mipmap/ic_launcher_round"

        android:supportsRtl="true"

        android:theme="@style/AppTheme">

        <activity android:name=".PlayerActivity" />

        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

Manifest show in image for user permission below

Step 5 :

for internal Storage permission reading links peste in below in the image like

path of pesting is "H:\AndroidStudio\AndroidApps\MediaPlayer\app\build.gradle"

link : implementation 'com.karumi:dexter:6.2.0'

And after press on Sync now  

(this for required internet connection)

AS given below image :

now add total button file as image below :

Process of adding button icon in android studio

1. open project file

2. then click right mouce button
3. and click on new
4. and then click Vector Assets

as image below :

6. and clock on Vector Asset 

this type create all button icon name like in image below :