안드로이드 뮤직플레이어 소스코드

youtu.be/QDxSf294Ods

 

<?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:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/mySongListView"
        />



</RelativeLayout>

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
    android:weightSum="10"
    tools:context=".PlayerActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:gravity="center"
        android:orientation="vertical"
        android:layout_weight="7"
        >
        <ImageView
            android:layout_width="250dp"
            android:layout_height="250dp"
            android:src="@drawable/cover_art"/>

        <TextView
            android:id="@+id/song_name_text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text = "Song name"
            android:textAlignment="center"
            android:gravity="center_horizontal"
            android:textSize="20sp"
            android:singleLine="true"
            android:marqueeRepeatLimit="marquee_forever"
            android:ellipsize="marquee"
            android:scrollHorizontally="true"
            android:textColor="@color/colorPrimary"
            />


    </LinearLayout>

    <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">

            <SeekBar
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:id="@+id/seekBar"
                android:layout_alignParentBottom="true"
                android:layout_marginBottom="40dp"
                />
            <Button
                android:layout_width="60dp"
                android:layout_height="60dp"
                android:layout_centerHorizontal="true"
                android:id="@+id/pause"
                android:background="@drawable/ic_pause"
                android:layout_marginTop="5dp"
                />

            <Button
                android:layout_width="60dp"
                android:layout_height="60dp"
                android:layout_toRightOf="@+id/pause"
                android:id="@+id/next"
                android:background="@drawable/ic__skip_next"
                android:layout_marginTop="5dp"
                />


            <Button
                android:layout_width="60dp"
                android:layout_height="60dp"
                android:layout_toLeftOf="@+id/pause"
                android:id="@+id/prev"
                android:background="@drawable/ic_skip_previous"
                android:layout_marginTop="5dp"
                />

        </RelativeLayout>


    </LinearLayout>



</LinearLayout>

package com.jwlee.musicplayer;

import androidx.appcompat.app.AppCompatActivity;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
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 myListViewSong;
    String[] items;

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

        myListViewSong = findViewById(R.id.mySongListView);

        runtimePermission();

    }

    public void runtimePermission() {
        Dexter.withActivity(this).withPermission(Manifest.permission.READ_EXTERNAL_STORAGE)
                .withListener(new PermissionListener() {
                    @Override
                    public void onPermissionGranted(PermissionGrantedResponse response) {
                        display();
                    }

                    @Override
                    public void onPermissionDenied(PermissionDeniedResponse response) {

                    }

                    @Override
                    public void onPermissionRationaleShouldBeShown(PermissionRequest permission, PermissionToken token) {

                        token.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> mySong = findSong(Environment.getExternalStorageDirectory());
        items = new String[mySong.size()];

        for(int i=0; i<mySong.size();i++){
            items[i]= mySong.get(i).getName().toString().replace(".mp3","").replace(".wav","");
            ArrayAdapter<String> myAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,items );
            myListViewSong.setAdapter(myAdapter);

            myListViewSong.setOnItemClickListener(new AdapterView.OnItemClickListener(){

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

                    String songName = myListViewSong.getItemAtPosition(i).toString();

                    startActivity(new Intent(getApplicationContext(),PlayerActivity.class)
                            .putExtra("songs",mySong).putExtra("songname",songName).putExtra("pos",i));
                }
            });

        }

    }


}

package com.jwlee.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.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;

public class PlayerActivity extends AppCompatActivity {

    Button btn_next, btn_prev, btn_pause;
    TextView songNameText;
    SeekBar songSeekBar;
    String song_name;

    static MediaPlayer myMediaPlayer;
    int position;

    ArrayList<File> mySongs;
    Thread updateseekBar;

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

        btn_next= findViewById(R.id.next);
        btn_prev = findViewById(R.id.prev);
        btn_pause = findViewById(R.id.pause);

        songNameText = findViewById(R.id.song_name_text);
        songSeekBar = findViewById(R.id.seekBar);

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

        updateseekBar = new Thread() {
            @Override
            public void run(){

                int totalDuration = myMediaPlayer.getDuration();
                int currentPostion = 0;

                while (currentPostion < totalDuration){
                    try{
                        sleep(500);
                        currentPostion = myMediaPlayer.getCurrentPosition();
                        songSeekBar.setProgress(currentPostion);

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

            }
        };

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

        Intent i = getIntent();
        Bundle bundle = i.getExtras();

        mySongs = (ArrayList)bundle.getParcelableArrayList("songs");
        song_name = mySongs.get(position).getName().toString();

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

        songNameText.setText(songName);
        songNameText.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);

        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.ic_play);
                    myMediaPlayer.pause();
                }else {
                    btn_pause.setBackgroundResource(R.drawable.ic_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);

                song_name = mySongs.get(position).getName().toString();
                songNameText.setText(song_name);

                myMediaPlayer.start();
            }
        });

        btn_prev.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);

                song_name = mySongs.get(position).getName().toString();
                songNameText.setText(song_name);

                myMediaPlayer.start();
            }
        });
    }

    @Override
    public boolean onOptionsItemSelected(@NonNull MenuItem item) {

        if(item.getItemId() == android.R.id.home){
            onBackPressed();
        }

        return super.onOptionsItemSelected(item);
    }
}

youtu.be/QDxSf294Ods