Android--MediaPlayer(목록 선택 곡,이전 곡,다음 곡,재생 목록 비우 기,로 컬 음악 파일 검색)
11388 단어 Android
다운로드 링크:http://download.csdn.net/detail/zlqqhs/5079025
MediaPlayerActivity 클래스:
package com.vince.media;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import android.app.Activity;
import android.app.ProgressDialog;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnErrorListener;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;
import android.widget.Toast;
public class MediaPlayerActivity extends Activity implements OnCompletionListener,OnErrorListener,OnSeekBarChangeListener,OnItemClickListener,Runnable{
protected static final int SEARCH_MUSIC_SUCCESS = 0;//
private SeekBar seekBar;
private ListView listView;
private ImageButton btnPlay;
private TextView tv_currTime,tv_totalTime,tv_showName;
private List list;
private ProgressDialog pd; //
private MusicListAdapter ma;//
private MediaPlayer mp;
private int currIndex = 0;//
private boolean flag = true;//
// ״̬
private static final int IDLE = 0;
private static final int PAUSE = 1;
private static final int START = 2;
private static final int CURR_TIME_VALUE = 1;
private int currState = IDLE; //
// ( )
ExecutorService es = Executors.newSingleThreadExecutor();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mediaplayer_layout);
list = new ArrayList();
mp = new MediaPlayer();
mp.setOnCompletionListener(this);
mp.setOnErrorListener(this);
initView();
}
@Override
protected void onDestroy() {
if (mp != null) {
mp.stop();
flag= false;
//
mp.release();
}
super.onDestroy();
}
/**
* UI
*/
private void initView() {
btnPlay = (ImageButton) findViewById(R.id.media_play);
seekBar = (SeekBar) findViewById(R.id.seekBar1);
seekBar.setOnSeekBarChangeListener(this);
listView = (ListView) findViewById(R.id.listView1);
listView.setOnItemClickListener(this);
tv_currTime = (TextView) findViewById(R.id.textView1_curr_time);
tv_totalTime = (TextView) findViewById(R.id.textView1_total_time);
tv_showName = (TextView) findViewById(R.id.tv_showName);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// xml
getMenuInflater().inflate(R.menu.media_menu, menu);
return super.onCreateOptionsMenu(menu);
}
private Handler hander = new Handler() {
public void handleMessage(android.os.Message msg) {
switch (msg.what) {
case SEARCH_MUSIC_SUCCESS:
//
ma = new MusicListAdapter();
listView.setAdapter(ma);
pd.dismiss();
break;
case CURR_TIME_VALUE:
//
tv_currTime.setText(msg.obj.toString());
break;
default:
break;
}
};
};
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
//
case R.id.item1_search:
list.clear();
//
if (Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED)) {
pd = ProgressDialog.show(this, "", " ...", true);
new Thread(new Runnable() {
String[] ext = { ".mp3" };
File file = Environment.getExternalStorageDirectory();
public void run() {
search(file, ext);
hander.sendEmptyMessage(SEARCH_MUSIC_SUCCESS);
}
}).start();
} else {
Toast.makeText(this, " ..", Toast.LENGTH_LONG).show();
}
break;
//
case R.id.item2_clear:
list.clear();
ma.notifyDataSetChanged();
break;
//
case R.id.item3_exit:
flag = false;
this.finish();
break;
}
return super.onOptionsItemSelected(item);
}
//
private void search(File file, String[] ext) {
if (file != null) {
if (file.isDirectory()) {
File[] listFile = file.listFiles();
if (listFile != null) {
for (int i = 0; i < listFile.length; i++) {
search(listFile[i], ext);
}
}
} else {
String filename = file.getAbsolutePath();
for (int i = 0; i < ext.length; i++) {
if (filename.endsWith(ext[i])) {
list.add(filename);
break;
}
}
}
}
}
class MusicListAdapter extends BaseAdapter {
public int getCount() {
return list.size();
}
public Object getItem(int position) {
return list.get(position);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = getLayoutInflater().inflate(R.layout.list_item,
null);
}
TextView tv_music_name = (TextView) convertView
.findViewById(R.id.textView1_music_name);
tv_music_name.setText(list.get(position));
return convertView;
}
}
private void play() {
switch (currState) {
case IDLE:
start();
break;
case PAUSE:
mp.pause();
btnPlay.setImageResource(R.drawable.ic_media_play);
currState = START;
break;
case START:
mp.start();
btnPlay.setImageResource(R.drawable.ic_media_pause);
currState = PAUSE;
}
}
//
private void previous() {
if((currIndex-1)>=0){
currIndex--;
start();
}else{
Toast.makeText(this, " ", Toast.LENGTH_SHORT).show();
}
}
//
private void next() {
if(currIndex+1 0 && currIndex < list.size()) {
String SongPath = list.get(currIndex);
mp.reset();
try {
mp.setDataSource(SongPath);
mp.prepare();
mp.start();
initSeekBar();
es.execute(this);
tv_showName.setText(list.get(currIndex));
btnPlay.setImageResource(R.drawable.ic_media_pause);
currState = PAUSE;
} catch (IOException e) {
e.printStackTrace();
}
}else{
Toast.makeText(this, " ", Toast.LENGTH_SHORT).show();
}
}
//
public void play(View v){
play();
}
//
public void previous(View v){
previous();
}
//
public void next(View v){
next();
}
// , ,
public void onCompletion(MediaPlayer mp) {
if(list.size()>0){
next();
}else{
Toast.makeText(this, " ", Toast.LENGTH_SHORT).show();
}
}
//
public boolean onError(MediaPlayer mp, int what, int extra) {
mp.reset();
return false;
}
// SeekBar
private void initSeekBar(){
seekBar.setMax(mp.getDuration());
seekBar.setProgress(0);
tv_totalTime.setText(toTime(mp.getDuration()));
}
private String toTime(int time){
int minute = time / 1000 / 60;
int s = time / 1000 % 60;
String mm = null;
String ss = null;
if(minute<10)mm = "0" + minute;
else mm = minute + "";
if(s <10)ss = "0" + s;
else ss = "" + s;
return mm + ":" + ss;
}
public void run() {
flag = true;
while(flag){
if(mp.getCurrentPosition() parent, View view, int position,
long id) {
currIndex = position;
start();
}
}
mediaplayer_layout.xml 레이아웃 파일:
media_menu.xml 파일:
strings.xml 파일:
Hello World, MediaActivity!
Media
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