android studio 57 MP3 音乐播放器 下载网络歌曲 代码

package com.example.mytabmp3;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.annotation.SuppressLint;
import android.content.ContentResolver;
import android.database.Cursor;
import android.media.MediaParser;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.TabHost;
import android.widget.TextView;
import android.widget.Toast;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.MalformedURLException;
import java.net.Socket;
import java.net.URL;
import java.net.URLConnection;

public class MainActivity extends AppCompatActivity implements OnClickListener {
     

    ImageView nextIv,playIv,lastIv;
    TextView singerTv,songTv;
    RecyclerView musicRv;

    List<LocalMusicBean> mDatas;
    private LocalMusicAdater adapter;

    private  int position;
    int currnetPalyPosition=-1;
    int currentPausePositionInSong=0;
    MediaPlayer mediaPlayer;

    //下载所需控件
    TextView tv;
    ListView ls;
    Button btn;
    EditText edt;
    String NeedFindWords;
    String[] strArr;

    private static final String Path="http://192.168.1.7/song/2.DJ - 侧脸 (言寺).mp3";

    private ProgressBar progressBar;
    private TextView textView;
    private Button button;
    private int FileLength;
    private int DownedFileLength=0;
    private InputStream inputStream;
    private URLConnection connection;
    private OutputStream outputStream;


    private final int HANDLER_MSG_TELL_RECV = 0x124;
    @SuppressLint("HandlerLeak")
    Handler handler = new Handler(){
     
        public void handleMessage(Message msg){
     
            //接受到服务器信息时执行
//            Toast.makeText(MainActivity.this,(msg.obj).toString(),Toast.LENGTH_LONG).show();
//            tv.setText((msg.obj).toString());
            System.out.println((msg.obj).toString());
            strArr = (msg.obj).toString().split("\n");

            ArrayAdapter<String> arrayAdapter= new ArrayAdapter<String> (
                    MainActivity.this, android.R.layout.simple_list_item_1,strArr);
            ls.setAdapter(arrayAdapter);
        }
    };

    //need download function
    private void startNetThread() {
     
        new Thread() {
     
            @Override
            public void run() {
     
                try {
     
                    Socket socket = new Socket("192.168.1.7", 666);
                    InputStream is = socket.getInputStream();

                    OutputStream out = socket.getOutputStream();
                    out.write(NeedFindWords.getBytes());					//3.发送
                    out.flush();

                    byte[] bytes = new byte[1024];
                    int n = is.read(bytes);
                    Message msg = handler.obtainMessage(HANDLER_MSG_TELL_RECV, new String(bytes, 0, n));
                    msg.sendToTarget();
                    is.close();
                    socket.close();
                } catch (Exception e) {
     
                }
            }
        }.start();
    }

    private Handler handler2=new Handler()
    {
     
        public void handleMessage(Message msg)
        {
     
            if (!Thread.currentThread().isInterrupted()) {
     
                switch (msg.what) {
     
                    case 0:
                        progressBar.setMax(FileLength);
                        Log.i("文件长度----------->", progressBar.getMax()+"");
                        break;
                    case 1:
                        progressBar.setProgress(DownedFileLength);
                        int x=DownedFileLength*100/FileLength;
                        textView.setText(x+"%");
                        break;
                    case 2:
                        String[]  strs=Path.split("/");
                        int lastSTR=0;
                        for(int i=0,len=strs.length;i<len;i++){
     
                            lastSTR=len;
                            System.out.println(strs[i].toString());
                        }
                        Toast.makeText(getApplicationContext(), "下载完成", Toast.LENGTH_LONG).show();
                        Toast.makeText(getApplicationContext(), strs[lastSTR-1].toString(), Toast.LENGTH_LONG).show();
                        break;

                    default:
                        break;
                }
            }
        }

    };

    private void DownFile(String urlString)
    {
     
        String LastName="";

        /*
         * 连接到服务器
         */

        try {
     
            URL url=new URL(urlString);
            String[] MFileName=urlString.split("/");
            LastName=MFileName[MFileName.length-1];
            System.out.println("***********************"+LastName);
            connection=url.openConnection();
            if (connection.getReadTimeout()==5) {
     
                Log.i("---------->", "当前网络有问题");
                // return;
            }
            inputStream=connection.getInputStream();

        } catch (MalformedURLException e1) {
     
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (IOException e) {
     
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        /*
         * 文件的保存路径和和文件名其中Nobody.mp3是在手机SD卡上要保存的路径，如果不存在则新建/sdcard/kgmusic/download
         */
        String savePAth= Environment.getExternalStorageDirectory()+"/kgmusic/download";
        File file1=new File(savePAth);
        if (!file1.exists()) {
     
            file1.mkdir();
        }
        String savePathString=Environment.getExternalStorageDirectory()+"/kgmusic/download/"+LastName;
        //String savePathString="//sdcard//kgmusic//download"+LastName;
        File file =new File(savePathString);
        if (!file.exists()) {
     
            try {
     
                file.createNewFile();
            } catch (IOException e) {
     
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        /*
         * 向SD卡中写入文件,用Handle传递线程
         */
        Message message=new Message();
        try {
     
            outputStream=new FileOutputStream(file);
            byte [] buffer=new byte[1024*4];
            FileLength=connection.getContentLength();
            message.what=0;
            handler2.sendMessage(message);
            while (DownedFileLength<FileLength) {
     
                outputStream.write(buffer);
                DownedFileLength+=inputStream.read(buffer);
                Log.i("-------->", DownedFileLength+"");
                Message message1=new Message();
                message1.what=1;
                handler2.sendMessage(message1);
            }
            Message message2=new Message();
            message2.what=2;
            handler2.sendMessage(message2);
        } catch (FileNotFoundException e) {
     
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
     
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

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

        TabHost tab = (TabHost) findViewById(android.R.id.tabhost);
        //初始化TabHost容器
        tab.setup();
        //在TabHost创建标签，然后设置：标题／图标／标签页布局
        tab.addTab(tab.newTabSpec("tab1").setIndicator("本地音乐" , null).setContent(R.id.tab1));
        tab.addTab(tab.newTabSpec("tab2").setIndicator("网络音乐" , null).setContent(R.id.tab2));
        initView();

        //need opertion
        Button btn = findViewById(R.id.button);
        edt=(EditText)findViewById(R.id.editText);
        ls= (ListView) findViewById(R.id.ListName);
        //这个是文件下载控件
        progressBar=(ProgressBar) findViewById(R.id.progress);
        textView=(TextView) findViewById(R.id.text);
        button=(Button) findViewById(R.id.button);

        ls.setOnItemClickListener(new AdapterView.OnItemClickListener() {
     
            private String MusicPath="";
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
     
                System.out.println(id);
                System.out.println("********************************************");
//                Toast.makeText(MainActivity.this,"点击了："+position+"行",Toast.LENGTH_SHORT).show();
                Toast.makeText(MainActivity.this,strArr[position],Toast.LENGTH_SHORT).show();

                MusicPath=strArr[position];
                //开启下载线程
                DownedFileLength=0;
                // TODO Auto-generated method stub
                Thread thread=new Thread(){
     
                    public void run(){
     
                        try {
     
                            DownFile(MusicPath);
                        } catch (Exception e) {
     
                            // TODO: handle exception
                        }
                    }
                };
                thread.start();
//                System.out.println(strArr[position]);
//                System.out.println("********************************************");
            }
        });

//        tv= (TextView) findViewById(R.id.ReData);
        btn.setOnClickListener(new View.OnClickListener() {
     
            @Override
            public void onClick(View v) {
     
                // 响应事件
                NeedFindWords=edt.getText().toString();
                startNetThread();
            }
        });

        mediaPlayer=new MediaPlayer();

        mDatas=new ArrayList<>();//z这里有两个选择
        //创建适配器
        adapter=new LocalMusicAdater(this,mDatas);
        musicRv.setAdapter(adapter);
        //s设置布局管理器
        LinearLayoutManager layoutManager=new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false);
        musicRv.setLayoutManager(layoutManager);
        //加载本地数据源
        loadLocalMusicData();
        //设置点击监听事件
        setEventListener();

    }

    private void setEventListener() {
     
        adapter.setOnItemClickListener(new LocalMusicAdater.OnItemClickListener() {
     
            @Override
            public void OnItemClick(View view, int position) {
     
                currnetPalyPosition=position;
                LocalMusicBean musicBean=mDatas.get(position);
                playMusicInMusicBean(musicBean);

            }
        });
    }

    public void playMusicInMusicBean(LocalMusicBean musicBean) {
     
        //she设置歌曲名  歌手名字
        singerTv.setText(musicBean.getSinger());
        songTv.setText(musicBean.getSong());
        stopMusic();
        //chongz重置多媒体播放器
        mediaPlayer.reset();
        try {
     
            mediaPlayer.setDataSource(musicBean.getPath());
            palyMusic();
        } catch (IOException e) {
     
            e.printStackTrace();
        }
    }


    private void palyMusic() {
     
        if(mediaPlayer!=null&&!mediaPlayer.isPlaying()){
     
            if(currentPausePositionInSong==0){
     
                try {
     
                    mediaPlayer.prepare();
                    mediaPlayer.start();
                } catch (IOException e) {
     
                    e.printStackTrace();
                }
            }else {
     
                //zha站厅到
                mediaPlayer.seekTo(currentPausePositionInSong);
                mediaPlayer.start();

            }

            playIv.setImageResource(R.mipmap.icon_pause);
        }

    }

    private void pauseMusic() {
     
        if(mediaPlayer!=null&&mediaPlayer.isPlaying()){
     
            currentPausePositionInSong=mediaPlayer.getCurrentPosition();
            mediaPlayer.pause();
            playIv.setImageResource(R.mipmap.icon_play);

        }
    }

    private void stopMusic() {
     
        if(mediaPlayer!=null){
     
            currentPausePositionInSong=0;
            mediaPlayer.pause();
            mediaPlayer.seekTo(0);
            mediaPlayer.stop();
            playIv.setImageResource(R.mipmap.icon_play);

        }

    }

    @Override
    protected void onDestroy() {
     

        super.onDestroy();
        stopMusic();
    }

    private void loadLocalMusicData() {
     
        //加载本地Mp3 文件
        // 获取contentResolver对象
        ContentResolver resolver=getContentResolver();
        //获取本地音乐存储urid
        Uri uri= MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;

        Cursor cursor=resolver.query(uri,null,null,null,null);

        int id=0;
        while(cursor.moveToNext()){
     
            String song = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
            String singer=cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST));
            String album=cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM));
            id++;
            String sid=String.valueOf(id);
            String path=cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));
            long duration=cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media.DURATION));
            SimpleDateFormat sdf=new SimpleDateFormat("mm:ss");
            String time = sdf.format(new Date(duration));
            LocalMusicBean bean=new LocalMusicBean(sid,song,singer,album,time,path);
            mDatas.add(bean);

        }

        adapter.notifyDataSetChanged();



    }

    private void initView() {
     

        nextIv=findViewById(R.id.local_music_bottom_iv_next);
        playIv=findViewById(R.id.local_music_bottom_iv_play);
        lastIv=findViewById(R.id.local_music_bottom_iv_last);
        singerTv=findViewById(R.id.local_music_bottom_tv_singer);
        songTv=findViewById(R.id.local_music_bottom_tv_song);
        musicRv=findViewById(R.id.local_music_rv);

        nextIv.setOnClickListener(this);
        lastIv.setOnClickListener(this);
        playIv.setOnClickListener(this);
    }

    @Override
    public void onClick(View view) {
     
        switch (view.getId()){
     
            case R.id.local_music_bottom_iv_last:
                if(currnetPalyPosition==0){
     
                    Toast.makeText(this,"已经是第一首歌曲。",Toast.LENGTH_SHORT).show();
                }
                currnetPalyPosition=currnetPalyPosition-1;
                LocalMusicBean lastBean=mDatas.get(currnetPalyPosition);
                playMusicInMusicBean(lastBean);
                break;
            case R.id.local_music_bottom_iv_next:
                if(currnetPalyPosition==mDatas.size()-1){
     
                    Toast.makeText(this,"next Music...",Toast.LENGTH_SHORT).show();
                }
                currnetPalyPosition=currnetPalyPosition+1;
                LocalMusicBean nextBean=mDatas.get(currnetPalyPosition);
                playMusicInMusicBean(nextBean);
                break;
            case R.id.local_music_bottom_iv_play:
                if(currnetPalyPosition==-1){
     
                    Toast.makeText(this, "last Music...", Toast.LENGTH_SHORT).show();
                    return;
                }
                if(mediaPlayer.isPlaying()){
     
                    pauseMusic();

                }else {
     
                    palyMusic();

                }
                break;

        }

    }


}



package com.example.mytabmp3;

public class LocalMusicBean {
     
    private String id;
    private String song;
    private String singer;
    private String album;
    private String duration;
    private String path;

    public LocalMusicBean() {
     
    }

    public LocalMusicBean(String id, String song, String singer, String album, String duration, String path) {
     
        this.id = id;
        this.song = song;
        this.singer = singer;
        this.album = album;
        this.duration = duration;
        this.path = path;
    }

    public String getId() {
     
        return id;
    }

    public void setId(String id) {
     
        this.id = id;
    }

    public String getSong() {
     
        return song;
    }

    public void setSong(String song) {
     
        this.song = song;
    }

    public String getSinger() {
     
        return singer;
    }

    public void setSinger(String singer) {
     
        this.singer = singer;
    }

    public String getAlbum() {
     
        return album;
    }

    public void setAlbum(String album) {
     
        this.album = album;
    }

    public String getDuration() {
     
        return duration;
    }

    public void setDuration(String duration) {
     
        this.duration = duration;
    }

    public String getPath() {
     
        return path;
    }

    public void setPath(String path) {
     
        this.path = path;
    }
}


package com.example.mytabmp3;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import java.util.List;

class LocalMusicAdater extends RecyclerView.Adapter<LocalMusicAdater.LocalMusicViewHolder>{
     

    Context context;
    List<LocalMusicBean> mDatas;

    OnItemClickListener onItemClickListener;
    public void setOnItemClickListener(OnItemClickListener onItemClickListener){
     
        this.onItemClickListener=onItemClickListener;
    }
    public interface OnItemClickListener{
     
        public void OnItemClick(View view, int position);
    }

    public LocalMusicAdater(Context context, List<LocalMusicBean> mDatas) {
     
        this.context = context;
        this.mDatas = mDatas;
    }

    @NonNull
    @Override
    public LocalMusicViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
     
        View view= LayoutInflater.from(context).inflate(R.layout.item_local_music,parent,false);
        LocalMusicViewHolder holder=new LocalMusicViewHolder(view);
        return holder;
    }

    @Override
    public void onBindViewHolder(@NonNull LocalMusicViewHolder holder, final int position) {
     
        LocalMusicBean musicBean=mDatas.get(position);
        holder.idTv.setText(musicBean.getId());
        holder.songTv.setText(musicBean.getSong());
        holder.singerTv.setText(musicBean.getSinger());
        holder.albumTv.setText(musicBean.getAlbum());
        holder.timeTv.setText(musicBean.getDuration());

        holder.itemView.setOnClickListener(new View.OnClickListener() {
     
            @Override
            public void onClick(View view) {
     
                onItemClickListener.OnItemClick(view,position);


            }
        });

    }

    @Override
    public int getItemCount() {
     
        return mDatas.size();
    }

    class LocalMusicViewHolder extends RecyclerView.ViewHolder{
     
        TextView idTv,songTv,singerTv,albumTv,timeTv;
        public LocalMusicViewHolder(@NonNull View itemView) {
     
            super(itemView);
            idTv=itemView.findViewById(R.id.item_local_music_num);
            songTv=itemView.findViewById(R.id.item_local_music_song);
            singerTv=itemView.findViewById(R.id.item_local_music_singer);
            albumTv=itemView.findViewById(R.id.item_local_music_album);
            timeTv=itemView.findViewById(R.id.item_local_music_durtion);


        }
    }
}



<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.mytabmp3">
    <uses-permission android:name="android.permission.INTERNET"></uses-permission>
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:usesCleartextTraffic="true"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>


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

    <TabHost
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@android:id/tabhost"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1">
        <LinearLayout
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="match_parent">
            <!-- TabWidget组件id值不可变-->
            <TabWidget
                android:id="@android:id/tabs"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">
            </TabWidget>
            <!-- FrameLayout布局，id值不可变-->
            <FrameLayout
                android:id="@android:id/tabcontent"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:layout_above="@android:id/tabs">
                <!-- 第一个tab的布局 -->
                <RelativeLayout
                    android:id="@+id/tab1"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" >
                    <RelativeLayout
                        android:layout_width="match_parent"
                        android:layout_height="70dp"
                        android:layout_alignParentBottom="true"
                        android:id="@+id/local_music_bottomlayout">

                        <ImageView
                            android:layout_width="match_parent"
                            android:layout_height="0.5dp"
                            android:background="#9933FA"/>
                        <ImageView
                            android:layout_width="60dp"
                            android:layout_height="60dp"
                            android:src="@mipmap/icon_song"
                            android:layout_centerVertical="true"
                            android:layout_marginLeft="10dp"
                            android:id="@+id/local_music_bottom_iv_icon"/>
                        <TextView
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:id="@+id/local_music_bottom_tv_song"
                            android:text=""
                            android:layout_toRightOf="@+id/local_music_bottom_iv_icon"
                            android:layout_marginTop="10dp"
                            android:layout_marginLeft="10dp"
                            android:textSize="16sp"
                            android:textStyle="bold"/>
                        <TextView
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:id="@+id/local_music_bottom_tv_singer"
                            android:text=""
                            android:textSize="12sp"
                            android:layout_below="@+id/local_music_bottom_tv_song"
                            android:layout_alignLeft="@+id/local_music_bottom_tv_song"
                            android:layout_marginTop="10dp"/>

                        <ImageView
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:id="@+id/local_music_bottom_iv_next"
                            android:layout_centerVertical="true"
                            android:src="@mipmap/icon_next"
                            android:layout_alignParentRight="true"
                            android:layout_marginRight="10dp"/>

                        <ImageView
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:id="@+id/local_music_bottom_iv_play"
                            android:layout_centerVertical="true"
                            android:src="@mipmap/icon_play"
                            android:layout_toLeftOf="@+id/local_music_bottom_iv_next"
                            android:layout_marginRight="20dp"/>
                        <ImageView
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:id="@+id/local_music_bottom_iv_last"
                            android:layout_centerVertical="true"
                            android:src="@mipmap/icon_last"
                            android:layout_toLeftOf="@+id/local_music_bottom_iv_play"
                            android:layout_marginRight="20dp"/>
                    </RelativeLayout>
                    <androidx.recyclerview.widget.RecyclerView
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:id="@+id/local_music_rv"
                        android:layout_above="@+id/local_music_bottomlayout">
                    </androidx.recyclerview.widget.RecyclerView>

                </RelativeLayout>
                <!-- 第二个tab的布局 -->
                <RelativeLayout
                    android:id="@+id/tab2"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" >
                    <EditText
                        android:id="@+id/editText"
                        android:layout_width="301dp"
                        android:layout_height="wrap_content"
                        android:ems="10"
                        android:inputType="textPersonName"
                        android:text="请输入歌曲名称"
                        tools:layout_editor_absoluteX="10dp"
                        tools:layout_editor_absoluteY="11dp" />
                    <Button
                        android:id="@+id/button"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_alignParentRight="true"
                        android:text="搜索歌曲"
                        tools:layout_editor_absoluteX="264dp"
                        tools:layout_editor_absoluteY="8dp" />
                    <ProgressBar
                        android:id="@+id/progress"
                        android:layout_below="@+id/button"
                        style="?android:attr/progressBarStyleHorizontal"
                        android:layout_width="match_parent"
                        android:layout_height="25dp"
                        />
                    <TextView
                        android:id="@+id/text"
                        android:layout_below="@+id/progress"
                        android:layout_width="match_parent"
                        android:layout_height="20dp"
                        android:text="TextView" />
                    <ListView
                        android:id="@+id/ListName"
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_below="@+id/text"
                        android:layout_alignParentEnd="true"
                        android:layout_alignParentRight="true"
                        android:layout_marginTop="7dp"
                        android:layout_marginEnd="3dp"
                        android:layout_marginRight="3dp"
                        android:text="Hello World!"
                        tools:layout_editor_absoluteX="0dp"
                        tools:layout_editor_absoluteY="98dp" >
                    </ListView>
                </RelativeLayout>
            </FrameLayout>
        </LinearLayout>
    </TabHost>

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_marginRight="10dp"
    android:layout_marginLeft="10dp"
    android:layout_marginTop="10dp"
    app:contentPadding="10dp"
    app:cardCornerRadius="10dp">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        
        <TextView
            android:id="@+id/item_local_music_num"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text=""
            android:layout_centerVertical="true"
            android:textSize="24sp"
            android:textStyle="bold"/>

        <TextView
            android:id="@+id/item_local_music_song"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="20dp"
            android:layout_toRightOf="@id/item_local_music_num"
            android:text=""
            android:textSize="18sp"
            android:textStyle="bold"/>

        <TextView
            android:id="@+id/item_local_music_singer"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="20dp"
            android:text=""
            android:layout_below="@+id/item_local_music_song"
            android:layout_alignLeft="@+id/item_local_music_song"
            android:layout_marginTop="10dp"
            android:textSize="14sp"
            android:textStyle="bold"/>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/item_local_music_album"
            android:text=""
            android:layout_toRightOf="@+id/item_local_music_singer"
            android:layout_alignTop="@+id/item_local_music_singer"
            android:textSize="14sp" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/item_local_music_durtion"
            android:layout_below="@+id/item_local_music_singer"
            android:layout_alignParentRight="true"
            android:text="3:52"/>
    </RelativeLayout>
    
</androidx.cardview.widget.CardView>