android studio 60音乐播放器 下载音乐
16lz
2021-12-04
activity_main.xml 111111111111111111<?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"> <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 --> <LinearLayout android:id="@+id/tab1" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <LinearLayout android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="4" android:orientation="horizontal"> <ListView android:id="@+id/listView1" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_below="@+id/btn_test" android:layout_marginTop="20dp" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:gravity="bottom" android:orientation="vertical"> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:orientation="horizontal"> <TextView android:id="@+id/music_current_time" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="00:00" android:textStyle="bold" tools:autoText="false" /> <TextView android:id="@+id/textView" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="4" /> <TextView android:id="@+id/music_total_time" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="00:00" android:textStyle="bold" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:orientation="horizontal"> <SeekBar android:id="@+id/music_seekbar" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="4" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:orientation="horizontal"> <ImageButton android:id="@+id/previous" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:background="#00000000" android:src="@android:drawable/ic_media_previous" /> <ImageButton android:id="@+id/btn_pause" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:background="#00000000" android:elevation="13dp" android:src="@android:drawable/ic_media_pause" /> <ImageButton android:id="@+id/next" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:background="#00000000" android:src="@android:drawable/ic_media_next" /> </LinearLayout> </LinearLayout> </LinearLayout> <!-- 第二个tab的布局 --> <LinearLayout android:orientation="vertical" android:id="@+id/tab2" android:layout_width="match_parent" android:layout_height="match_parent" > <EditText android:id="@+id/editText" android:layout_width="match_parent" 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="match_parent" 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> </LinearLayout> </FrameLayout> </LinearLayout> </TabHost></LinearLayout>MainActivity.java222222222222222package com.example.myuuuuii;import android.annotation.SuppressLint;import android.os.Environment;import android.os.Handler;import android.os.Message;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.Button;import android.widget.EditText;import android.widget.ListView;import android.widget.ProgressBar;import android.widget.TabHost;import android.widget.TextView;import android.widget.Toast;import androidx.appcompat.app.AppCompatActivity;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;import android.Manifest;import android.app.Activity;import android.content.pm.PackageManager;import android.media.MediaPlayer;import android.os.Build;import android.os.Bundle;import android.os.Environment;import android.os.Handler;import android.os.Message;import android.os.StrictMode;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.ImageButton;import android.widget.ListView;import android.widget.SeekBar;import android.widget.TextView;import android.widget.Toast;import androidx.core.app.ActivityCompat;import java.io.File;import java.io.IOException;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;import java.util.Timer;import java.util.TimerTask;public class MainActivity extends AppCompatActivity { TextView tv; ListView ls; Button btn; EditText edt; String NeedFindWords; String[] strArr; private static final String Path="http://192.168.1.2/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; //play music ......... private static final int INTERNAL_TIME = 1000; final MediaPlayer mp = new MediaPlayer(); String song_path = ""; private SeekBar seekBar; private TextView currentTV; private TextView totalTV; boolean isStop = true; private boolean isSeekBarChanging;//互斥变量，防止进度条与定时器冲突。 private int currentposition;//当前音乐播放的进度 private Timer timer; private ArrayList<String> list; private File[] songFiles; private Handler mHandler = new Handler(new Handler.Callback() { @Override public boolean handleMessage(Message message) { // 展示给进度条和当前时间 int progress = mp.getCurrentPosition(); seekBar.setProgress(progress); currentTV.setText(formatTime(progress)); // 继续定时发送数据 updateProgress(); return true; } }); //3、使用formatTime方法对时间格式化： private String formatTime(int length) { Date date = new Date(length); //时间格式化工具 SimpleDateFormat sdf = new SimpleDateFormat("mm:ss"); String totalTime = sdf.format(date); return totalTime; } private final int HANDLER_MSG_TELL_RECV = 0x124; @SuppressLint("HandlerLeak") Handler handlerDown = 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); } }; @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)); 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(); } }); totalTV = findViewById(R.id.music_total_time); currentTV = findViewById(R.id.music_current_time); seekBar = (SeekBar) findViewById(R.id.music_seekbar); seekBar.setOnSeekBarChangeListener(new MySeekBar()); if (ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) { ActivityCompat.requestPermissions(MainActivity.this, new String[]{ Manifest.permission.READ_EXTERNAL_STORAGE}, 123); return; } //判断是否是AndroidN以及更高的版本 N=24 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder(); StrictMode.setVmPolicy(builder.build()); } list = new ArrayList<String>(); //音乐列表 Environment.getExternalStorageDirectory()+"/DownFile/" File sdpath = Environment.getExternalStorageDirectory(); //获得手机SD卡路径/sdcard/kgmusic/download System.out.println("******"+Environment.getExternalStorageDirectory()); File path = new File(sdpath + "//DownFile//"); //获得SD卡的mp3文件夹 //返回以.mp3结尾的文件 (自定义文件过滤) songFiles = path.listFiles(new MyFilter(".mp3")); for (File file : songFiles) { list.add(file.getAbsolutePath()); //获取文件的绝对路径 } ArrayAdapter<String> adapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_single_choice, list); ListView li = (ListView) findViewById(R.id.listView1); li.setAdapter(adapter); li.setChoiceMode(ListView.CHOICE_MODE_SINGLE); li.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { song_path = ((TextView) view).getText().toString(); currentposition = position; changeMusic(currentposition); try { mp.reset(); //重置 mp.setDataSource(song_path); mp.prepare(); //准备 mp.start(); //播放 seekBar.setMax(mp.getDuration()); isStop = false; timer = new Timer(); timer.schedule(new TimerTask() { @Override public void run() { if (!isSeekBarChanging) { seekBar.setProgress(mp.getCurrentPosition()); } } }, 0, 50); } catch (Exception e) { } } }); //暂停和播放 final ImageButton btnpause = (ImageButton) findViewById(R.id.btn_pause); btnpause.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (song_path.isEmpty()) Toast.makeText(getApplicationContext(), "先选收歌曲先听听", Toast.LENGTH_SHORT).show(); if (mp.isPlaying()) { mp.pause(); //暂停 isStop = true; btnpause.setImageResource(android.R.drawable.ic_media_play); } else if (!song_path.isEmpty()) { mp.start(); //继续播放 isStop = false; btnpause.setImageResource(android.R.drawable.ic_media_pause); } } }); //上一曲和下一曲 final ImageButton previous = (ImageButton) findViewById(R.id.previous); previous.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { changeMusic(--currentposition); } }); final ImageButton next = (ImageButton) findViewById(R.id.next); next.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { changeMusic(++currentposition); } }); } private void changeMusic(int position) { if (position < 0) { currentposition = position = list.size() - 1; } else if (position > list.size() - 1) { currentposition = position = 0; } song_path = songFiles[position].getAbsolutePath(); try { // 切歌之前先重置，释放掉之前的资源 mp.reset(); // 设置播放源 mp.setDataSource(song_path); // 开始播放前的准备工作，加载多媒体资源，获取相关信息 mp.prepare(); // 开始播放 mp.start(); } catch (IOException e) { e.printStackTrace(); } seekBar.setProgress(0);//将进度条初始化 seekBar.setMax(mp.getDuration());//设置进度条最大值为歌曲总时间 totalTV.setText(formatTime(mp.getDuration()));//显示歌曲总时长 updateProgress();//更新进度条 } private void updateProgress() { // 使用Handler每间隔1s发送一次空消息，通知进度条更新 Message msg = Message.obtain();// 获取一个现成的消息 // 使用MediaPlayer获取当前播放时间除以总时间的进度 int progress = mp.getCurrentPosition(); msg.arg1 = progress; mHandler.sendMessageDelayed(msg, INTERNAL_TIME); } public class MySeekBar implements SeekBar.OnSeekBarChangeListener { public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { } /*滚动时,应当暂停后台定时器*/ public void onStartTrackingTouch(SeekBar seekBar) { isSeekBarChanging = true; } /*滑动结束后，重新设置值*/ public void onStopTrackingTouch(SeekBar seekBar) { isSeekBarChanging = false; mp.seekTo(seekBar.getProgress()); } } protected void onDestroy() { super.onDestroy(); if (mp != null) { mp.stop(); mp.release(); } Toast.makeText(getApplicationContext(), "退出啦", Toast.LENGTH_SHORT).show(); } private void startNetThread() { new Thread() { @Override public void run() { try { Socket socket = new Socket("192.168.1.2", 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 = handlerDown.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 */ String savePAth= Environment.getExternalStorageDirectory()+"/DownFile"; File file1=new File(savePAth); if (!file1.exists()) { file1.mkdir(); } String savePathString=Environment.getExternalStorageDirectory()+"/DownFile/"+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(); } }}AndroidManifest.xml333333333 <uses-permission 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