Android MediaPlayer

Android의 동영상 재생 or 음성재생이 가능한 MediaPlayer API를 사용하였다.

이번 소스는 음성만 재생하는 간단한 소스이다.

MediaPlayer class는 따로 두었다.
아래는 MediaRecord소스이다.

import android.media.MediaPlayer;

import android.os.Environment;

import android.util.Log;

import java.io.File;

/**

 * Created by sona

 */

public class MediaPlayer {

    private final String TAG = "MediaPlayer";

    private final File RECORDED_FILE = Environment.getExternalStorageDirectory();

    private MediaPlayer player;

    private String mFileName;

    public MediaPlayer() {

        mFileName = RECORDED_FILE.getAbsolutePath()+"/audio_milo.mp3";

    }

    /**

     *  Audio Play

     */

    public void play(){

        if (player != null) {

            player.stop();

            player.release();

            player = null;

        }

        Log.d(TAG, "PLAY AUDIO");

        try {

            player = new MediaPlayer();

            player.setDataSource(mFileName);

            player.prepare();

            player.start();

        } catch (Exception e) {

            Log.e(TAG, "Audio play failed.", e);

        }

    }

    /**

     * Audio Play Pause

     */

    public void playPause(){

        if(player.isPlaying()){

            player.pause();

        } else {

            player.start();

        }

    }

    /**

     *  Audio Play Stop

     */

    public void playStop(){

        if (player == null)

            return;

        Log.d(TAG,"PLAY STOP");

        player.stop();

        player.release();

        player = null;

    }

    /**

     *  Mediaplayer Release

     */

    public void release(){

        if (player != null) {

            player.release();

            player = null;

        }

    }

    /**

     * MediaPlayer Seek duration

     * @param frame : video player frame (Refer : MLPlayer.onPlaying)

     */

    public void seekTo(int frame){

        if(player != null){

            player.seekTo(frame * 1000);

        }

    }

아래는 activity에서 test로 사용하는 코드이다.

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.SeekBar;

public class MediaRecordActivity extends Activity implements View.OnClickListener{

    private Button          audioRecordPlay;

    private Button          audioRecordPlayStop;

    private Button          audioSeekButton;

    private MediaPlayer   mediaPlayer;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.media_activity);

        initialize();

    }

    @Override

    protected void onPause() {

        super.onPause();

        mediaPlayer.release();

    }

    @Override

    public void onClick(View v) {

        switch (v.getId()){

            case R.id.record_button:

                mediaPlayer.start();

                break;

            case R.id.record_stop_button:

                mediaPlayer.stop();

                break;

            case R.id.play_start_button:

                mediaPlayer.play();

                break;

            case R.id.play_stop_button:

                mediaPlayer.playPause();

                break;

            case R.id.seek_button:

                // seekTo unit = millisecond

                mediaPlayer.seekTo(3000);

                break;

        }

    }

    private void initialize(){

        audioRecordPlay          = (Button) findViewById(R.id.play_start_button);

        audioRecordPlayStop   = (Button) findViewById(R.id.play_stop_button);

        audioSeekButton          = (Button) findViewById(R.id.seek_button);

        audioRecordPlay.setOnClickListener(this);

        audioRecordPlayStop.setOnClickListener(this);

        audioSeekButton.setOnClickListener(this);

        mediaPlayer = new MediaPlayer();

    }

}