Android10.0實現(xiàn)本地音樂播放(附源碼下載)

更新時間：2020年06月23日 10:16:30 作者：league周周

這篇文章主要介紹了Android10.0實現(xiàn)本地音樂播放(附源碼下載)，文中通過示例代碼介紹的非常詳細，對大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價值，需要的朋友們下面隨著小編來一起學(xué)習(xí)學(xué)習(xí)吧

1.概述

本篇文章僅是Android小白在寫一個小程序，內(nèi)容僅供參考，有很多不足之處希望各位大神指出，文章末尾有整個項目的下載，不需要幣，只求幫你們解決到問題的同時收獲到一顆小小的贊。這個項目中還有很多不足的地方，如：在按鍵中設(shè)置圖片文字，這些正常的應(yīng)該交給Handler處理，我只是粗略地完成這個項目。測試環(huán)境：Android10.0。實現(xiàn)：自動播放下一首，正常音樂的功能，全屏顯示。
Android10.0是內(nèi)外分存了的，應(yīng)用是沒有權(quán)限讀取內(nèi)存的，需要在配置文件中application中加上屬性：android:requestLegacyExternalStorage=“true”，不加可能可以讀取歌曲，但是無法播放。

2.效果截圖

截圖顯示不同是因為這不是同一時間截的，只是一個效果圖

3.讀取本地音樂以及保存歌曲

①先在AndroidManifest文件里面配置權(quán)限

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

②目前基本上的手機使用靜態(tài)權(quán)限是不夠的，需要動態(tài)獲取權(quán)限，因此需要在MainActivity里面動態(tài)獲取，在onCreate方法里調(diào)用方法

private void check(){
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
  if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED ) {
   requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
   Log.d(TAG,"---------------------寫權(quán)限不夠-----------------");
  }
  if(checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE)!= PackageManager.PERMISSION_GRANTED ){
   requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 2);
   Log.d(TAG,"---------------------讀權(quán)限不夠-----------------");
  }
 }
}

③再去實現(xiàn)權(quán)限的回調(diào)方法，與Activity的onCreate方法是同一級別的

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
 super.onRequestPermissionsResult(requestCode, permissions, grantResults);
 switch (requestCode) {
  case 1:
   if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
    Log.d(TAG, "---------------------寫權(quán)限夠了-----------------------------");
   }
   break;
  case 2:
   if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
    Log.d(TAG, "---------------------讀權(quán)限夠了-----------------------------");
   }
   break;
 }
}

④創(chuàng)建一個工具類Mp3Info，用來保存音樂信息的，里面主要是一些get和set方法

public class Mp3Info {
 private String url;//路徑
 private String title;//歌曲名
 private String artist;//藝術(shù)家
 private long duration;//歌曲時長
 private long id;
 private long album;//專輯圖片
 }

⑤創(chuàng)建一個MusicUtil類，通過ContentPorvider的接口獲取歌曲信息

public class MusicUtil {
 //獲取專輯封面的UI
 private static final String TAG="MusicUtil";
 private static final Uri albumArtUri=Uri.parse("content://media/external/audio/albumart");
 //生成歌曲列表
 public static List<Mp3Info> getMp3InfoList(Context context){
  Cursor cursor=context.getContentResolver().query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, null, null, null,null);
  List<Mp3Info> mp3InfoList=new ArrayList<>();
  while(cursor.moveToNext()){
   Mp3Info mp3Info=new Mp3Info();
   mp3Info.setUrl(cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA)));//path
   mp3Info.setTitle(cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE)));
   mp3Info.setArtist(cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST)));
   mp3Info.setDuration(cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media.DURATION)));
   mp3Info.setId(cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media._ID)));
   mp3Info.setAlbum(cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM_ID)));
   mp3InfoList.add(mp3Info);
  }
  return mp3InfoList;
 }
 //格式化時間，轉(zhuǎn)換為分/秒
 public static String formatTime(long time){
  String min = time / (1000 * 60) + "";
  String sec = time % (1000 * 60) + "";
  if (min.length() < 2) {
   min = "0" + time / (1000 * 60) + "";
  } else {
   min = time / (1000 * 60) + "";
  }
  if (sec.length() == 4) {
   sec = "0" + (time % (1000 * 60)) + "";
  } else if (sec.length() == 3) {
   sec = "00" + (time % (1000 * 60)) + "";
  } else if (sec.length() == 2) {
   sec = "000" + (time % (1000 * 60)) + "";
  } else if (sec.length() == 1) {
   sec = "0000" + (time % (1000 * 60)) + "";
  }
  return min + ":" + sec.trim().substring(0, 2);
 }

 //獲取專輯圖片，目前是只能獲取手機自帶歌曲的專輯圖片，如果手機有酷狗，qq音樂之類的，可能無法獲取專輯圖片
 //因為他們的uri不知道。
 public Bitmap getArtwork(Context context, long song_id, long album_id, boolean allowdefalut, boolean small){
  if(album_id < 0) {
   if(song_id < 0) {
    Bitmap bm = getArtworkFromFile(context, song_id, -1);
    if(bm != null) {
     return bm;
    }
   }
   if(allowdefalut) {
    return getDefaultArtwork(context, small);
   }
   return null;
  }
  ContentResolver res = context.getContentResolver();
  Uri uri = ContentUris.withAppendedId(albumArtUri, album_id);
  if(uri != null) {
   InputStream in = null;
   try {
    in = res.openInputStream(uri);
    BitmapFactory.Options options = new BitmapFactory.Options();
    //先制定原始大小
    options.inSampleSize = 1;
    //只進行大小判斷
    options.inJustDecodeBounds = true;
    //調(diào)用此方法得到options得到圖片的大小
    BitmapFactory.decodeStream(in, null, options);
    /** 我們的目標(biāo)是在你N pixel的畫面上顯示。 所以需要調(diào)用computeSampleSize得到圖片縮放的比例 **/
    /** 這里的target為800是根據(jù)默認專輯圖片大小決定的，800只是測試數(shù)字但是試驗后發(fā)現(xiàn)完美的結(jié)合 **/
    if(small){
     options.inSampleSize = computeSampleSize(options, 40);
    } else{
     options.inSampleSize = computeSampleSize(options, 600);
    }
    // 我們得到了縮放比例，現(xiàn)在開始正式讀入Bitmap數(shù)據(jù)
    options.inJustDecodeBounds = false;
    options.inDither = false;
    options.inPreferredConfig = Bitmap.Config.ARGB_8888;
    in = res.openInputStream(uri);
    return BitmapFactory.decodeStream(in, null, options);
   } catch (FileNotFoundException e) {
    Bitmap bm = getArtworkFromFile(context, song_id, album_id);
    if(bm != null) {
     if(bm.getConfig() == null) {
      bm = bm.copy(Bitmap.Config.RGB_565, false);
      if(bm == null && allowdefalut) {
       return getDefaultArtwork(context, small);
      }
     }
    } else if(allowdefalut) {
     bm = getDefaultArtwork(context, small);
    }
    return bm;
   } finally {
    try {
     if(in != null) {
      in.close();
     }
    } catch (IOException e) {
     e.printStackTrace();
    }
   }
  }
  return null;
 }
 /**
  * 從文件當(dāng)中獲取專輯封面位圖
  * @param context
  * @param songid
  * @param albumid
  * @return
  */
 private static Bitmap getArtworkFromFile(Context context, long songid, long albumid){
  Bitmap bm = null;
  if(albumid < 0 && songid < 0) {
   throw new IllegalArgumentException("---------------------"+TAG+"Must specify an album or a song id");
  }
  try {
   BitmapFactory.Options options = new BitmapFactory.Options();
   FileDescriptor fd = null;
   if(albumid < 0){
    Uri uri = Uri.parse("content://media/external/audio/media/" + songid + "/albumart");
    ParcelFileDescriptor pfd = context.getContentResolver().openFileDescriptor(uri, "r");
    if(pfd != null) {
     fd = pfd.getFileDescriptor();
    }
   } else {
    Uri uri = ContentUris.withAppendedId(albumArtUri, albumid);
    ParcelFileDescriptor pfd = context.getContentResolver().openFileDescriptor(uri, "r");
    if(pfd != null) {
     fd = pfd.getFileDescriptor();
    }
   }
   options.inSampleSize = 1;
   // 只進行大小判斷
   options.inJustDecodeBounds = true;
   // 調(diào)用此方法得到options得到圖片大小
   BitmapFactory.decodeFileDescriptor(fd, null, options);
   // 我們的目標(biāo)是在800pixel的畫面上顯示
   // 所以需要調(diào)用computeSampleSize得到圖片縮放的比例
   options.inSampleSize = 100;
   // 我們得到了縮放的比例，現(xiàn)在開始正式讀入Bitmap數(shù)據(jù)
   options.inJustDecodeBounds = false;
   options.inDither = false;
   options.inPreferredConfig = Bitmap.Config.ARGB_8888;

   //根據(jù)options參數(shù)，減少所需要的內(nèi)存
   bm = BitmapFactory.decodeFileDescriptor(fd, null, options);
  } catch (FileNotFoundException e) {
   e.printStackTrace();
  }
  return bm;
 }

 /**
  * 獲取默認專輯圖片
  * @param context
  * @return
  */
 @SuppressLint("ResourceType")
 public static Bitmap getDefaultArtwork(Context context, boolean small) {
  BitmapFactory.Options opts = new BitmapFactory.Options();
  opts.inPreferredConfig = Bitmap.Config.RGB_565;
  if(small){ //返回小圖片
   //return
   BitmapFactory.decodeStream(context.getResources().openRawResource(R.drawable.default_picture), null, opts);
  }
  return BitmapFactory.decodeStream(context.getResources().openRawResource(R.drawable.default_picture), null, opts);
 }

 /**
  * 對圖片進行合適的縮放
  * @param options
  * @param target
  * @return
  */
 public static int computeSampleSize(BitmapFactory.Options options, int target) {
  int w = options.outWidth;
  int h = options.outHeight;
  int candidateW = w / target;
  int candidateH = h / target;
  int candidate = Math.max(candidateW, candidateH);
  if(candidate == 0) {
   return 1;
  }
  if(candidate > 1) {
   if((w > target) && (w / candidate) < target) {
    candidate -= 1;
   }
  }
  if(candidate > 1) {
   if((h > target) && (h / candidate) < target) {
    candidate -= 1;
   }
  }
  return candidate;
 }
}

⑥為列表設(shè)置adapter，新建一個MyAdapter類繼承BaseAdapter，然后在重寫的getView里面設(shè)置顯示的控件

@Override
public View getView(int position, View convertView, ViewGroup parent) {
 if(convertView==null){
  holder=new ViewHolder();
  convertView=View.inflate(context, R.layout.list_item,null);
  holder.tv_title=convertView.findViewById(R.id.tv_title);
  holder.tv_artist=convertView.findViewById(R.id.tv_artist);
  holder.tv_duration=convertView.findViewById(R.id.tv_duration);
  holder.tv_position=convertView.findViewById(R.id.tv_position);
  convertView.setTag(holder);
 }else {
  holder= (ViewHolder) convertView.getTag();
 }
 holder.tv_title.setText(list.get(position).getTitle());
 holder.tv_artist.setText(list.get(position).getArtist());
 long duration = list.get(position).getDuration();
 String time= MusicUtil.formatTime(duration);
 holder.tv_duration.setText(time);
 holder.tv_position.setText(position+1+"");
 if(currentItem == position){
  holder.tv_title.setSelected(true);
  holder.tv_position.setSelected(true);
  holder.tv_duration.setSelected(true);
  holder.tv_artist.setSelected(true);
 }else{
  holder.tv_title.setSelected(false);
  holder.tv_position.setSelected(false);
  holder.tv_duration.setSelected(false);
  holder.tv_artist.setSelected(false);
 }
 return convertView;
}
class ViewHolder{
 TextView tv_title;//歌曲名
 TextView tv_artist;//歌手
 TextView tv_duration;//時長
 TextView tv_position;//序號
}

4.使用Service實現(xiàn)后臺播放

使用的是bindService，這樣Service的生命周期就和Activity的生命周期綁定在一起了。創(chuàng)建一個MusicService。注意：銷毀Service的時候需要將音樂對象release。

①Service實現(xiàn)功能，在onBind方法里面實例化音樂播放對象

@Override
public IBinder onBind(Intent intent) {
 Log.d(TAG,"onBind is call");
 myBinder=new MyBinder();
 return myBinder;
}

②在MyBinder()里面實現(xiàn)音樂的各種功能，使用的是內(nèi)部類，初始化部分請看源代碼包

public class MyBinder extends Binder{
 private int index=0;//歌曲索引
 //播放音樂
 public void playMusic(int index){
  this.index=index;
  try {
   File file=new File(list.get(this.index).getUrl());
   if(!file.exists()){
    Log.d(TAG,"------------------------------文件不存在------------------------------");
    return ;
   }else{
    Log.d(TAG,"------------------------------文件："+file.getPath()+"存在 ------------------------------");
   }
   if(mediaPlayer!=null){
    mediaPlayer.reset();
    mediaPlayer.release();
   }
   mediaPlayer=new MediaPlayer();
   String str=list.get(this.index).getUrl();
   mediaPlayer.setDataSource(str);
   Log.d(TAG,list.get(this.index).getUrl()+"");
   mediaPlayer.prepare();
   mediaPlayer.start();
  } catch (IOException e) {
   e.printStackTrace();
  }
 }
 //暫停音樂
 public void pauseMusic(){
  if(mediaPlayer.isPlaying()){
   mediaPlayer.pause();
  }
 }
 //關(guān)閉音樂
 public void closeMusic(){
  if(mediaPlayer!=null){
   mediaPlayer.release();
  }
 }
 //下一首
 public void nextMusic(){
  if(index>=list.size()-1){
   this.index=0;
  }else{
   this.index+=1;
  }
  playMusic(this.index);
 }
 //上一首
 public void preciousMusic(){
  if(index<=0){
   this.index=list.size()-1;
  }else{
   this.index-=1;
  }
  playMusic(this.index);
 }
 //獲取歌曲時長
 public int getProgress(int dex){
  return (int)list.get(dex).getDuration();
 }
 public int getProgress(){
  return (int)list.get(index).getDuration();
 }
 //獲取當(dāng)前播放位置
 public int getPlayPosition(){
  return mediaPlayer.getCurrentPosition();
 }
 //移動到當(dāng)前點播放
 public void seekToPosition(int m){
  mediaPlayer.seekTo(m);
 }

}

③在MainActivity里面綁定
a.先實例化一個ServiceConnection對象

private ServiceConnection connection=new ServiceConnection() {
 @Override
 public void onServiceConnected(ComponentName name, IBinder service) {
  myBinder= (MusicService.MyBinder) service;
  seekBar.setMax(myBinder.getProgress());
  seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
   @Override
   public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
    //這里是判斷進度條移動是不是用戶所為
    if(fromUser){
     myBinder.seekToPosition(seekBar.getProgress());
    }
   }

   @Override
   public void onStartTrackingTouch(SeekBar seekBar) {

   }

   @Override
   public void onStopTrackingTouch(SeekBar seekBar) {

   }
  });
  handler.post(runnable);
  Log.d(TAG, "Service與Activity已連接");
 }

 @Override
 public void onServiceDisconnected(ComponentName name) {

 }
};

b.還需要一個handler來控制ui組件的變化，實例化放在了onCreate方法里面。
c.用一個Runnable對象進行seekbar的前進

private Runnable runnable=new Runnable() {
 @Override
 public void run() {
  seekBar.setProgress(myBinder.getPlayPosition());
  tv_leftTime.setText(time.format(myBinder.getPlayPosition())+"");
  tv_rightTime.setText(time.format(myBinder.getProgress()-myBinder.getPlayPosition())+"");
  if(myBinder.getProgress()-myBinder.getPlayPosition()<1000){//時間不夠了自動觸發(fā)下一首
   runOnUiThread(new Runnable() {//使用ui線程來觸發(fā)按鍵點擊事件，不知道這樣有沒有什么危害
    @Override
    public void run() {
     ib_next.performClick();
    }
   });
  }
  handler.postDelayed(runnable,1000);
 }
};

d.在onCreate方法里進行綁定

MediaServiceIntent =new Intent(this,MusicService.class);//MediaServiceIntent為一個Intent
bindService(MediaServiceIntent,connection,BIND_AUTO_CREATE);

5.使用Notification通知欄通知

注意：：如果點擊通知欄是從MainActivity跳轉(zhuǎn)到MainActivity，需要在配置文件的activity android:name=".MainActivity"
android:launchMode=“singleTask”，設(shè)置為單任務(wù)。
布局在源代碼包里，在Api26級以上需要使用NotificationChannel
①設(shè)置通知所觸發(fā)的PandingIntent，通過Action識別，action為自己定義的常量，setSound無聲音。通過RemoteViews去實現(xiàn)通知欄組件的按鈕實現(xiàn)

//設(shè)置通知
private void setNotification(){
 String channelID="cary";
 if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.O){
  NotificationChannel channel=new NotificationChannel(channelID,"xxx",NotificationManager.IMPORTANCE_LOW);
  manager.createNotificationChannel(channel);
 }
 Intent intent=new Intent(MainActivity.this,MainActivity.class);
 PendingIntent pi=PendingIntent.getActivity(MainActivity.this,0,intent,0);
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
  notify=new Notification.Builder(MainActivity.this,channelID)
   .setWhen(System.currentTimeMillis())
   .setSound(null)
   .build();
 }
 notify.icon=android.R.drawable.btn_star;
 notify.contentIntent=pi;
 notify.contentView=remoteViews;
 notify.flags=Notification.FLAG_ONGOING_EVENT;
 remoteViews.setOnClickPendingIntent(R.id.notice,pi);
 //上一首
 Intent prevIntent=new Intent(BUTTON_PREV_ID);
 PendingIntent prevPendingIntent=PendingIntent.getBroadcast(this,0,prevIntent,0);
 remoteViews.setOnClickPendingIntent(R.id.widget_prev,prevPendingIntent);
 //播放暫停
 Intent playIntent=new Intent(BUTTON_PLAY_ID);
 PendingIntent playPendingIntent=PendingIntent.getBroadcast(this,0,playIntent,0);
 remoteViews.setOnClickPendingIntent(R.id.widget_play,playPendingIntent);
 //下一首
 Intent nextIntent=new Intent(BUTTON_NEXT_ID);
 PendingIntent nextPendingIntent=PendingIntent.getBroadcast(this,0,nextIntent,0);
 remoteViews.setOnClickPendingIntent(R.id.widget_next,nextPendingIntent);
 //關(guān)閉
 Intent closeIntent=new Intent(BUTTON_CLOSE_ID);
 PendingIntent closePendingIntent=PendingIntent.getBroadcast(this,0,closeIntent,0);
 remoteViews.setOnClickPendingIntent(R.id.widget_close,closePendingIntent);
}

②動態(tài)注冊廣播

//注冊廣播
private void initButtonReceiver(){
 buttonBroadcastReceiver=new ButtonBroadcastReceiver();
 IntentFilter intentFilter=new IntentFilter();
 intentFilter.addAction(BUTTON_PREV_ID);
 intentFilter.addAction(BUTTON_PLAY_ID);
 intentFilter.addAction(BUTTON_NEXT_ID);
 intentFilter.addAction(BUTTON_CLOSE_ID);
 registerReceiver(buttonBroadcastReceiver,intentFilter);
}

③顯示廣播，需要注意的是，每次在Activity里面點擊上一首或者下一首都需要調(diào)用這個方法，刷新通知欄的標(biāo)題，以及狀態(tài)專輯

//展示通知
private void showNotification(){
 if(isPlaying){
  remoteViews.setImageViewResource(R.id.widget_play,R.drawable.stop);
 }else{
  remoteViews.setImageViewResource(R.id.widget_play,R.drawable.start);
 }
 remoteViews.setImageViewBitmap(R.id.widget_album,utils.getArtwork(MainActivity.this,list.get(music_index).getId(),list.get(music_index).getAlbum(),true,false));
 remoteViews.setImageViewResource(R.id.widget_close,android.R.drawable.ic_menu_close_clear_cancel);
 remoteViews.setTextViewText(R.id.widget_title,list.get(music_index).getTitle());
 remoteViews.setTextViewText(R.id.widget_artist,list.get(music_index).getArtist());
 remoteViews.setTextColor(R.id.widget_title,Color.BLACK);
 remoteViews.setTextColor(R.id.widget_artist,Color.BLACK);
 notify.contentView=remoteViews;
 manager.notify(100,notify);
}

④通知欄動作接收，使用的是內(nèi)部類

public class ButtonBroadcastReceiver extends BroadcastReceiver{

 @Override
 public void onReceive(Context context, Intent intent) {
  String action=intent.getAction();
  Log.d(TAG,"--------------------收到action:"+action+"--------------------------");
  if(action.equals(BUTTON_PREV_ID)){
   runOnUiThread(new Runnable() {
    @Override
    public void run() {
     ib_precious.performClick();
     return;
    }
   });
  }
  if(action.equals(BUTTON_PLAY_ID)){
   runOnUiThread(new Runnable() {
    @Override
    public void run() {
     ib_state.performClick();
     return;
    }
   });
  }
  if(action.equals(BUTTON_NEXT_ID)){
   runOnUiThread(new Runnable() {
    @Override
    public void run() {
     ib_next.performClick();
     return;
    }
   });
  }
  if(action.equals(BUTTON_CLOSE_ID)){
   handler.removeCallbacks(runnable);
   myBinder.closeMusic();
   unbindService(connection);
   if(remoteViews!=null){
    manager.cancel(100);
   }
   unregisterReceiver(buttonBroadcastReceiver);
   finish();
  }
 }
}

6.全屏顯示

①在AndroidManifest文件里面配置主題樣式android:theme="@style/Theme.AppCompat.Light.NoActionBar">
然后在onCreate方法里在setContentView(R.layout.activity_main);之前
設(shè)置：

if(Build.VERSION.SDK_INT>=21){
 View decorView=getWindow().getDecorView();
 decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN|View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
 getWindow().setStatusBarColor(Color.TRANSPARENT);
}

7.設(shè)置歌曲選中后的樣式

①在res目錄下的drawable資源下新建一個類型為selector的xml文件，里面設(shè)置屬性

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
 <item
  android:state_selected="false"
  android:color="#FFFFFF"/>
 <item
  android:state_selected="true"
  android:color="#FF7F00"/>
</selector>

②在Adapter里面設(shè)置getView

currentItem == position){
 holder.tv_title.setSelected(true);
 holder.tv_position.setSelected(true);
 holder.tv_duration.setSelected(true);
 holder.tv_artist.setSelected(true);
}else{
 holder.tv_title.setSelected(false);
 holder.tv_position.setSelected(false);
 holder.tv_duration.setSelected(false);
 holder.tv_artist.setSelected(false);
}

注意：在使用的時候可能需要手動去設(shè)置里面打開權(quán)限
代碼包里面的Music_Player\app\release下的MusicPlayer.apk是app安裝包哦，期待您的點贊，與評論

地址：Music_Player_jb51.rar

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