Android音乐app源代码(app播放音乐代码)
admin 发布:2022-12-19 16:21 123
本篇文章给大家谈谈Android音乐app源代码,以及app播放音乐代码对应的知识点,希望对各位有所帮助,不要忘了收藏本站喔。
本文目录一览:
- 1、怎样查看 Android APP 源代码
- 2、打开安卓软件后播放音乐的这段代码怎么写?
- 3、基于Android音乐播放器源代码(正常播放、有列表)
- 4、安卓编程添加背景音乐代码和方法
- 5、android 添加背景音乐源码
- 6、android在线本地音乐播放器 简单点能看懂的 谁有源码给一个啊
怎样查看 Android APP 源代码
用压缩软件打开apk文件,解压出根目录中的classes.dex文件
使用cmd ,dex2jar.bat classes.dex命令将classes.dex转换为jar
再用jd-gui打开该jar就可以查看源码了,如果apk安全性好的话,有些代码是看不到的
打开安卓软件后播放音乐的这段代码怎么写?
首先新建一个项目命名为Mp3Demo(这个看个人喜好),Activity命名为Mp3Demo。
1.接下来在Mp3Demo.java中输入以下代码:
package com.example.mp3demo;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class Mp3Demo extends Activity
{ //声名变量
private Button start=null;
private Button pause=null;
private Button stop=null;
private TextView state=null;
private MediaPlayer mp3;
private Boolean flag=false; //设置标记,false表示正在播放
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
super.setContentView(R.layout.activity_mp3_demo);
//取得各按钮组件
start=(Button) super.findViewById(R.id.start);
pause=(Button) super.findViewById(R.id.pause);
stop=(Button) super.findViewById(R.id.stop);
state=(TextView)super.findViewById(R.id.state);
//为每个按钮设置单击事件
start.setOnClickListener(new OnClickListenerStart());
pause.setOnClickListener(new OnClickListenerPause());
stop.setOnClickListener(new OnClickListenerStop());
mp3= new MediaPlayer(); //创建一个MediaPlayer对象
//在res下新建一个raw文件夹把一首歌放到此文件夹中并用英文命名
mp3 = MediaPlayer.create(Mp3Demo.this,R.raw.sky);
}
//各按钮单击事件的实现如下
//开始播放
private class OnClickListenerStart implements OnClickListener{
//implementsOnClickListener为实现OnClickListener接口
@Override
//重写onClic事件
public void onClick(View v)
{
//执行的代码,其中可能有异常。一旦发现异常,则立即跳到catch执行。否则不会执行catch里面的内容
try
{
if (mp3!=null)
{
mp3.stop();
}
mp3.prepare(); //进入到准备状态
mp3.start(); //开始播放
state.setText("Playing"); //改变输出信息为“Playing”,下同
} catch (Exception e)
{
state.setText(e.toString());//以字符串的形式输出异常
e.printStackTrace(); //在控制台(control)上打印出异常
}
}
}
//暂停播放
private class OnClickListenerPause implements OnClickListener{
@Override
public void onClick(View v)
{
try
{
if (flag==false) //若flag为false,则表示此时播放器的状态为正在播放
{
mp3.pause();
flag=true;
state.setText("pause");
}
else if(flag==true){
mp3.start(); //开始播放
flag=false; //重新设置flag为false
state.setText("Playing");
}
} catch (Exception e)
{
state.setText(e.toString());
e.printStackTrace();
}
}
}
//停止播放
private class OnClickListenerStop implements OnClickListener{
@Override
public void onClick(View v)
{
try
{
if (mp3!=null)
{
mp3.stop();
state.setText("stop");
}
} catch (Exception e)
{
state.setText(e.toString());
e.printStackTrace();
}
}
}
//重写暂停状态事件
protected void onPause(){
try
{
mp3.release(); //释放音乐资源
} catch (Exception e)
{
state.setText(e.toString());
e.printStackTrace();
}
super.onPause();
}
}
2.按下来是定义布局文件,代码如下:
xmlns:tools=""
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/state"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" /
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal"
android:id="@+id/start"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="start"/
android:id="@+id/pause"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="pause"/
android:id="@+id/stop"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="stop"/
基于Android音乐播放器源代码(正常播放、有列表)
package my.android.players;
import java.io.File;
import java.io.FilenameFilter;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.TextView;
public class mainActivity extends Activity {
private ListString myMusicList=new ArrayListString();
//当前播放歌曲的索引
private int currentListItem=0;
//音乐的路径
private static final String MUSIC_PATH="/sdcard/mp3";
//播放对象
private MediaPlayer myMediaPlayer;
private TextView m_TextView;
//播放按钮
private ImageButton m_start;
private ImageButton m_stop;
private ImageButton m_next;
private ImageButton m_last;
/*设定bIsPaused一开始为false */
private boolean bIsRun = false;
private boolean isplay;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main2);
myMediaPlayer=new MediaPlayer();
musicList();
m_TextView=(TextView)findViewById(R.id.mtextview);
m_start=(ImageButton)findViewById(R.id.imgbtn_start);
m_stop=(ImageButton)findViewById(R.id.imgbtn_stop);
m_next=(ImageButton)findViewById(R.id.imgbtn_next);
m_last=(ImageButton)findViewById(R.id.imgbtn_last);
listener();
Intent intent = this.getIntent();
Bundle bundle = intent.getExtras();
currentListItem = bundle.getInt("currentListItem");
isplay=bundle.getBoolean("isplay");
if(isplay==true)
{
bIsRun=false;
playMusic(MUSIC_PATH+"/"+myMusicList.get(currentListItem));
}
}
//监听事件
void listener(){
//开始
m_start.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
try
{
if(myMediaPlayer.isPlaying()==true)
{
myMediaPlayer.pause();
m_start.setImageResource(R.drawable.pause);
}
else
{
playMusic(MUSIC_PATH+"/"+myMusicList.get(currentListItem));
}
}
catch (IllegalStateException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
//下一首
m_next.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
nextMusic();
}
});
//上一首
m_last.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
lastMusic();
}
});
//停止
m_stop.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
stopMusic();
}
});
myMediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
// TODO Auto-generated method stub
nextMusic();
}
});
}
//播放音乐
void playMusic(String path){
try {
if(bIsRun==false)
{
myMediaPlayer.reset();
myMediaPlayer.setDataSource(path);
myMediaPlayer.prepare();
myMediaPlayer.start();
/*
* 取出歌曲名的.mp3后缀
* */
String str=(myMusicList.get(currentListItem)).toString();
System.out.println(str);
String str1[]=str.split("\\.");
System.out.println(str1[0]);
m_TextView.setText(str1[0]);
}
else
{
myMediaPlayer.start();
}
m_start.setImageResource(R.drawable.start);
bIsRun=true;
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
//下一首
void nextMusic(){
if(++currentListItem=myMusicList.size()){
currentListItem=0;
}
bIsRun=false;
playMusic(MUSIC_PATH+"/"+myMusicList.get(currentListItem));
}
//上一首
void lastMusic(){
if(--currentListItem0)
currentListItem=myMusicList.size()-1;
bIsRun=false;
playMusic(MUSIC_PATH+"/"+myMusicList.get(currentListItem));
}
//停止
void stopMusic() {
if (myMediaPlayer.isPlaying()) {
m_start.setImageResource(R.drawable.pause);
myMediaPlayer.stop();// 停止
bIsRun=false;
}
else
playMusic(MUSIC_PATH+"/"+myMusicList.get(currentListItem));
}
//当用户返回时结束音乐并释放音乐对象
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
if(keyCode==KeyEvent.KEYCODE_BACK){
new AlertDialog.Builder(mainActivity.this).setTitle("message")
.setIcon(android.R.drawable.dialog_frame)
.setMessage("你确定要离开吗?")
.setPositiveButton("确定",new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
myMediaPlayer.stop();
myMediaPlayer.release();
finish();
}
}).setNegativeButton("取消",new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
}).show();
}
return super.onKeyDown(keyCode, event);
}
/**
* 文件过滤器
*
* @author
*
*/
class MusicFilter implements FilenameFilter {
@Override
public boolean accept(File dir, String filename) {
return (filename.endsWith(".mp3"));
}
}
//绑定音乐
void musicList(){
try{
File home=new File(MUSIC_PATH);
if(!home.exists())
home.mkdirs();
if(home.listFiles(new MusicFilter()).length=0){
for(File file:home.listFiles(new MusicFilter())){
myMusicList.add(file.getName().toString());
}
}
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
}
package my.android.players;
import java.io.File;
import java.io.FilenameFilter;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class Activity01 extends Activity {
//播放列表
private ListString myMusicList=new ArrayListString();
//当前播放歌曲的索引
private int currentListItem;
//音乐的路径
private static final String MUSIC_PATH="/sdcard/mp3";
//播放列表
private ListView m_ListView;
private boolean isplay=true;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
m_ListView=(ListView)findViewById(R.id.lv_music);
musicList();
//当选择列表项时播放音乐
m_ListView.setOnItemClickListener(new ListView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView? arg0, View arg1, int arg2,
long arg3) {
currentListItem = arg2;
Intent intent = new Intent();
Bundle mBundle=new Bundle();
mBundle.putInt("currentListItem", currentListItem);
mBundle.putBoolean("isplay", isplay);
intent.putExtras(mBundle);
intent.setClass(Activity01.this,mainActivity.class);
startActivity(intent);
finish();
}
});
}
/**
* 文件过滤器
*
* @author
*
*/
class MusicFilter implements FilenameFilter {
@Override
public boolean accept(File dir, String filename) {
return (filename.endsWith(".mp3"));
}
}
//绑定音乐
void musicList(){
try{
File home=new File(MUSIC_PATH);
if(!home.exists())
home.mkdirs();
if(home.listFiles(new MusicFilter()).length=0){
for(File file:home.listFiles(new MusicFilter())){
myMusicList.add(file.getName().toString());
}
ArrayAdapterString musicList=new ArrayAdapterString
(Activity01.this,android.R.layout.simple_list_item_1, myMusicList);
m_ListView.setAdapter(musicList);
}
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
}
安卓编程添加背景音乐代码和方法
MediaPlayer
网上有人封装了一个 直接拿来用就可以了
package com.llkan.setup;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
import com.llkan.R;
import android.content.Context;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.SoundPool;
/**
* 声音控制类
* @author wyf
*
*/
public class SoundPlayer {
private static MediaPlayer music;
private static SoundPool soundPool;
private static boolean musicSt = true; //音乐开关
private static boolean soundSt = true; //音效开关
private static Context context;
private static final int[] musicId = {R.raw.bg,R.raw.bg1,R.raw.bg2,R.raw.bg3};
private static MapInteger,Integer soundMap; //音效资源id与加载过后的音源id的映射关系表
/**
* 初始化方法
* @param c
*/
public static void init(Context c)
{
context = c;
initMusic();
initSound();
}
//初始化音效播放器
private static void initSound()
{
soundPool = new SoundPool(10,AudioManager.STREAM_MUSIC,100);
soundMap = new HashMapInteger,Integer();
soundMap.put(R.raw.itemboom, soundPool.load(context, R.raw.itemboom, 1));
soundMap.put(R.raw.sel, soundPool.load(context, R.raw.sel, 1));
}
//初始化音乐播放器
private static void initMusic()
{
int r = new Random().nextInt(musicId.length);
music = MediaPlayer.create(context,musicId[r]);
music.setLooping(true);
}
/**
* 播放音效
* @param resId 音效资源id
*/
public static void playSound(int resId)
{
if(soundSt == false)
return;
Integer soundId = soundMap.get(resId);
if(soundId != null)
soundPool.play(soundId, 1, 1, 1, 0, 1);
}
/**
* 暂停音乐
*/
public static void pauseMusic()
{
if(music.isPlaying())
music.pause();
}
/**
* 播放音乐
*/
public static void startMusic()
{
if(musicSt)
music.start();
}
/**
* 切换一首音乐并播放
*/
public static void changeAndPlayMusic()
{
if(music != null)
music.release();
initMusic();
startMusic();
}
/**
* 获得音乐开关状态
* @return
*/
public static boolean isMusicSt() {
return musicSt;
}
/**
* 设置音乐开关
* @param musicSt
*/
public static void setMusicSt(boolean musicSt) {
SoundPlayer.musicSt = musicSt;
if(musicSt)
music.start();
else
music.stop();
}
/**
* 获得音效开关状态
* @return
*/
public static boolean isSoundSt() {
return soundSt;
}
/**
* 设置音效开关
* @param soundSt
*/
public static void setSoundSt(boolean soundSt) {
SoundPlayer.soundSt = soundSt;
}
/**
* 发出‘邦’的声音
*/
public static void boom()
{
playSound(R.raw.itemboom);
}
}
还有 小编卖萌了
android 添加背景音乐源码
一张你从未填写过的巨额支票,
枯黄萎缩的败叶,
不要去做,孩子
浪来时,你指着海洋彼岸
也会让有些人感到烦扰。
他来的这中,哈哈
android在线本地音乐播放器 简单点能看懂的 谁有源码给一个啊
下面这个例子是使用service和broadcastReceiver实现的简单音乐播放器,麻雀虽小,五脏俱全,百度搜索安卓无忧,点击源码看源码,你看演示:
MusiceService代码
package mm.shandong.com.testsimplemedia.service;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.AssetFileDescriptor;
import android.content.res.AssetManager;
import android.media.MediaPlayer;
import android.os.IBinder;
public class MusicService extends Service {
int currentMusic = 0;//0表示没有音乐播放,1表示暂停,2表示正在播放,
int status;
MediaPlayer mp;
String[] musics = new String[]{"first.mp3", "second.mp3", "third.mp3"};
AssetManager am;
public MusicService() {
}
@Override
public void onCreate() {
am = getAssets();
mp = new MediaPlayer();
mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mediaPlayer) {
currentMusic++;
currentMusic = currentMusic % musics.length;
playMusic();
status = 2;
Intent intentTemp = new Intent("Update_Music_State");
intentTemp.putExtra("status", status);
intentTemp.putExtra("currentMusic", currentMusic);
sendBroadcast(intentTemp);
}
});
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("Get_Music_Control");
///动态注册播放器变化的广播接收者
MusicServiceReceiver musicServiceReceiver = new MusicServiceReceiver();
registerReceiver(musicServiceReceiver, intentFilter);
super.onCreate();
}
public class MusicServiceReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
int control = intent.getIntExtra("control", 0);
switch (control) {
case 0:
//暂停
if (status == 2) {
mp.pause();
status = 1;
}
break;
case 1:
///播放
if (status == 0) {
playMusic();
status = 2;
} else if (status == 1) {
mp.start();
status = 2;
}
break;
case 3:
break;
case 4:
//上一首
if (status == 0) {
if (currentMusic == 0) {
currentMusic = 2;
} else {
currentMusic--;
}
} else if (status == 1) {
if (currentMusic == 0) {
currentMusic = 2;
} else {
currentMusic--;
}
status = 0;
} else if (status == 2) {
if (currentMusic == 0) {
currentMusic = 2;
} else {
currentMusic--;
}
playMusic();
}
break;
case 5:
//下一首
if (status == 0) {
if (currentMusic == 2) {
currentMusic = 0;
} else {
currentMusic++;
}
} else if (status == 1) {
if (currentMusic == 2) {
currentMusic = 0;
} else {
currentMusic++;
}
status = 0;
} else if (status == 2) {
if (currentMusic == 2) {
currentMusic = 0;
} else {
currentMusic++;
}
playMusic();
}
break;
}
Intent intentTemp = new Intent("Update_Music_State");
intentTemp.putExtra("status", status);
intentTemp.putExtra("currentMusic", currentMusic);
sendBroadcast(intentTemp);
}
}
@Override
public IBinder onBind(Intent intent) {
// TODO: Return the communication channel to the service.
throw new UnsupportedOperationException("Not yet implemented");
}
public void playMusic() {
try {
AssetFileDescriptor ad = am.openFd(musics[currentMusic]);
mp.reset();
mp.setDataSource(ad.getFileDescriptor(), ad.getStartOffset(), ad.getLength());
// mp.create(this,musics[currentMusic]);
mp.prepare();
mp.start();
} catch (Exception e) {
e.printStackTrace();
}
}
}
activity代码:
package mm.shandong.com.testsimplemedia;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;
import mm.shandong.com.testsimplemedia.service.MusicService;
public class TestSimpleMediaActivity extends AppCompatActivity {
ImageButton imageButton;
TextView textViewMp3Name;
TextView textViewMp3Author;
int status = 0;
String[] authors = new String[]{"张三", "李四", "王二"};
String[] names = new String[]{"first", "second", "thrid"};
int currentMusic = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test_simple_media);
imageButton = (ImageButton) findViewById(R.id.imageButton);
textViewMp3Name = (TextView) findViewById(R.id.textViewMp3Name);
textViewMp3Author = (TextView) findViewById(R.id.textViewMp3Author);
imageButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent("Get_Music_Control");
if (status == 2) {
intent.putExtra("control", 0);
} else {
intent.putExtra("control", 1);
}
sendBroadcast(intent);
}
});
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("Update_Music_State");
MusicStatusReceiver musicStatusReceiver = new MusicStatusReceiver();
//动态注册activity变化的广播接收者
registerReceiver(musicStatusReceiver, intentFilter);
Intent intent = new Intent(this, MusicService.class);
startService(intent);
Intent intentMusicReceiver = new Intent("Get_Music_Control");
intentMusicReceiver.putExtra("control", 3);
sendBroadcast(intentMusicReceiver);
}
///上一首
public void preMusic(View view) {
Intent intentMusicReceiver = new Intent("Get_Music_Control");
intentMusicReceiver.putExtra("control", 4);
sendBroadcast(intentMusicReceiver);
}
///下一首
public void nextMusic(View view) {
Intent intentMusicReceiver = new Intent("Get_Music_Control");
intentMusicReceiver.putExtra("control", 5);
sendBroadcast(intentMusicReceiver);
}
///定义操作音乐的广播接收者
public class MusicStatusReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
status = intent.getIntExtra("status", 0);
currentMusic = intent.getIntExtra("currentMusic", 0);
switch (status) {
case 0:
textViewMp3Name.setText(names[currentMusic]);
textViewMp3Author.setText(authors[currentMusic]);
imageButton.setBackgroundResource(R.drawable.play32);
break;
case 1:
textViewMp3Name.setText(names[currentMusic]);
textViewMp3Author.setText(authors[currentMusic]);
imageButton.setBackgroundResource(R.drawable.play32);
break;
case 2:
imageButton.setBackgroundResource(R.drawable.pause32);
textViewMp3Name.setText(names[currentMusic]);
textViewMp3Author.setText(authors[currentMusic]);
break;
}
}
}
}
最后,您觉得回答满意的话,请关注一下我的微博,我的名字除了中文以外的。
关于Android音乐app源代码和app播放音乐代码的介绍到此就结束了,不知道你从中找到你需要的信息了吗 ?如果你还想了解更多这方面的信息,记得收藏关注本站。
版权说明:如非注明,本站文章均为 AH站长 原创,转载请注明出处和附带本文链接;
- 上一篇:特色全屏代码(c语言全屏代码)
- 下一篇:微信发红包html5代码(发红包的代码)
相关推荐
- 04-29包含wget源代码分析的词条[20240429更新]
- 04-29jsp收费系统源代码的简单介绍[20240429更新]
- 04-29文字特效js代码(文字效果代码)[20240429更新]
- 04-29phpqq代码(免费代码)[20240429更新]
- 04-29css广告代码生成器(广告设计生成器)[20240429更新]
- 04-29简单的菜单点击改变图片代码(点击编辑图片改变)[20240429更新]
- 04-29discuz代码注入(discuz代码使用教程)[20240429更新]
- 04-29在线网页源代码(在线网页源代码查看器)[20240429更新]
- 04-29连连看c代码(连连看的代码)[20240429更新]
- 04-29网页图片闪烁js代码(css实现图片闪烁动画)[20240429更新]
取消回复欢迎 你 发表评论:
- 标签列表
- 最近发表
- 友情链接