음악 듣기 예제

main.xml

<?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"
    tools:context=".MainActivity">

    <Switch
        android:id="@+id/switch1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="음악듣기"
        android:textSize="30sp"/>

    <SeekBar
        android:id="@+id/pbMP3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

</LinearLayout>

 

main.activity

//오디오 음악듣기
public class MainActivity extends AppCompatActivity {
    private MediaPlayer mediaPlayer;
    private SeekBar pbMp3;

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

        Switch switch1 = findViewById(R.id.switch1);
        pbMp3 = findViewById(R.id.pbMP3);
        pbMp3.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int i, boolean b) {
                if (b) {
                    mediaPlayer.seekTo(i);
                }
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {

            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {

            }
        });

        switch1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if(switch1.isChecked() == true){
                    mediaPlayer = MediaPlayer.create(getApplicationContext(),R.raw.song1);
                    mediaPlayer.start();
                    makeThread();
                }else{
                    mediaPlayer.stop();
                }

            }
        });


    }
    void makeThread(){
        new Thread(){
            @Override
            public void run() {
                //음악이 계속 작동중이라면
                while (mediaPlayer.isPlaying()){
                    pbMp3.setMax(mediaPlayer.getDuration());
                    //현재 위치 지정
                    pbMp3.setProgress(mediaPlayer.getCurrentPosition());
                    SystemClock.sleep(100);
                }
                pbMp3.setProgress(0);
            }
        }.start();
    }
}

 

 

 

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결과 값

• 스위치 on 하면 processbar가 흘러간다.