实例介绍
【实例简介】android 4.4系统测试时 无法播放音乐，实现了基本的UI操作，能识别本机的音乐信息
【实例截图】
【核心代码】
package com.smxy.edu.test;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.IBinder;
import android.provider.MediaStore;
import android.view.KeyEvent;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ExpandableListView;
import android.widget.ExpandableListView.OnChildClickListener;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SeekBar;
import android.widget.SimpleAdapter;
import android.widget.SimpleExpandableListAdapter;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;
import android.widget.Toast;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
//import com.jk.impl.IMusic;
//import com.jk.impl.onMusicOver;
public class KuGouActivity extends ALLActivity {
/** Called when the activity is first created. */
private List<Map<String, String>> musicList = new ArrayList<Map<String, String>>();
private String musicPath;
private String musicName;
private String musicAlbum;
private String musicArtist;
private String musicAlbumKey;
private String musicAlbumArtPath;
private ListView lv_sing;
private int musicTime;
private long mExitTime = 0;
private Intent in;
private IMusic binder;
private ImageView img_zj;
private ImageView img_up;
private ImageView img_pause;
private ImageView img_next;
private ImageView img_menu;
private SeekBar seekBar;
private SimpleAdapter adapter;
private List<List<Map<String, String>>> chile;
private int musicid=10000;
private String action = "com.jk.service.musicservice";
private boolean f = false;
private int size=0;
private SimpleExpandableListAdapter a;
private ExpandableListView pand;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
musicList = loadSongs();
initView();
if (musicList.size() > 0) {
in = new Intent();
in.setAction(action);
in.putExtra("path", musicList.get(0).get("path"));
startService(in);
bindService(in, conn, Context.BIND_AUTO_CREATE);
}
}
ServiceConnection conn = new ServiceConnection() {
public void onServiceDisconnected(ComponentName name) {
// TODO Auto-generated method stub
System.out.println("onServiceDisconnected");
}
public void onServiceConnected(ComponentName name, IBinder service) {
// TODO Auto-generated method stub
System.out.println("onServiceConnected");
binder = (IMusic) service;
}
};
private String p;
private Notification notification;
public void initView() {
TabHost tabHost = (TabHost) findViewById(R.id.table);
tabHost.setup();
TabSpec spec = tabHost.newTabSpec("spec1");
View view = View.inflate(this, R.layout.tab_item, null);
spec.setIndicator(view);
spec.setContent(R.id.linear1);
tabHost.addTab(spec);
TabSpec spec2 = tabHost.newTabSpec("spec2");
View view2 = View.inflate(this, R.layout.tab_item2, null);
spec2.setIndicator(view2);
spec2.setContent(R.id.linear2);
tabHost.addTab(spec2);
TabSpec spec3 = tabHost.newTabSpec("spec3");
View view3 = View.inflate(this, R.layout.tab_item3, null);
spec3.setIndicator(view3);
spec3.setContent(R.id.linear3);
tabHost.addTab(spec3);
TabSpec spec4 = tabHost.newTabSpec("spec4");
View view4 = View.inflate(this, R.layout.tab_item4, null);
spec4.setIndicator(view4);
spec4.setContent(R.id.linear4);
tabHost.addTab(spec4);
seekBar = (SeekBar) findViewById(R.id.seekBar1);
pand = (ExpandableListView) findViewById(R.id.expand);
img_zj = (ImageView) findViewById(R.id.img_zj);
img_up = (ImageView) findViewById(R.id.img_up);
img_pause = (ImageView) findViewById(R.id.img_pause);
img_next = (ImageView) findViewById(R.id.img_next);
img_menu = (ImageView) findViewById(R.id.img_menu);
lv_sing = (ListView) findViewById(R.id.lv_sing);
// ������ҳ�����ֵ
adapter = new SimpleAdapter(getApplicationContext(), musicList,
R.layout.song_item, new String[] { "musicName", "musicArtist",
"musicTime", "musicPath", "musicRating" }, new int[] {
R.id.tv_name, R.id.tv_songer, R.id.tv_time,
R.id.tv_musicPath, R.id.tv_musicRating });
lv_sing.setAdapter(adapter);
lv_sing.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
// Intent intent=new Intent();
// intent.putExtra("id",
// musicList.get(position).get("musicRating"));
// intent.setClass(getApplicationContext(), play.class);
// startActivity(intent);
System.out.println(position "***********");
Map<String, String> m = new HashMap<String, String>();
m = (Map<String, String>) adapter.getItem(position);
if(musicid==Integer.parseInt(m.get("id"))){
start(null);
}else{
musicid = Integer.parseInt(m.get("id"));
if (binder != null) {
binder.dorevmo();
binder.doRset();
unbindService(conn);
stopService(in);
binder = null;
in = null;
in = new Intent();
in.setAction(action);
// img_zj.
if("".equals(m.get("musicAlbumImage"))){
img_zj.setBackgroundDrawable(getResources().getDrawable(R.drawable.defaul));
}else{
InputStream i = ClassLoader.getSystemClassLoader()
.getResourceAsStream(m.get("musicAlbumImage"));
byte[] data = read(i);
Bitmap bit = BitmapFactory.decodeByteArray(data, 0,
data.length);
img_zj.setImageBitmap(bit);
}
// musicAlbumImage
in.putExtra("path", m.get("path"));
// System.out.println("path" m.get("path") "********");
startService(in);
bindService(in, conn, Context.BIND_AUTO_CREATE);
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
try {
Thread.sleep(500);
if (binder != null) {
binder.init(seekBar, new onMusicOver() {
@Override
public void onMusicOver() {
// TODO Auto-generated method stub
next(null);
}
});
}
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}).start();
f = true;
img_pause.setBackgroundDrawable(getResources().getDrawable(
R.drawable.start));
}
}
}
});
if (binder != null) {
img_pause.setBackgroundDrawable(getResources().getDrawable(
R.drawable.start));
} else {
img_pause.setBackgroundDrawable(getResources().getDrawable(
R.drawable.pause));
}
// ��������ҳ�������
List<Map<String, String>> lis = new ArrayList<Map<String, String>>();
chile = new ArrayList<List<Map<String, String>>>();
Map<String, String> pmap = new HashMap<String, String>();
Map<String, String> m;
m = new HashMap<String, String>();
for (int i = 0; i < musicList.size(); i ) {
pmap = new HashMap<String, String>();
String displayName = musicList.get(i).get("displayName");
//String displayName = name.substring(0, name.lastIndexOf("-"));
if (m.get(displayName) == null) {
m.put(displayName, displayName);
pmap.put("name", displayName);
lis.add(pmap);
}
// for(Map.Entry<String, String> entry :pmap.entrySet()){
// //System.out.println("key=" entry.getKey() "value=" entry.getValue());
// }
}
Map<String, String> mc = new HashMap<String, String>();
for (int j = 0; j < lis.size(); j ) {
String entry = lis.get(j).get("name");
List<Map<String, String>> l = new ArrayList<Map<String, String>>();
for (int i = 0; i < musicList.size(); i ) {
System.out.println(entry "******" i "****");
String displayName = musicList.get(i).get("displayName");
//String displayName = name.substring(0, name.lastIndexOf("-"));
System.out.println(displayName "displayName");
if (entry.equals(displayName)) {
mc = new HashMap<String, String>();
System.out.println(displayName "displayName********");
mc.put("musicName", musicList.get(i).get("musicName"));
mc.put("musicTime", musicList.get(i).get("musicTime"));
mc.put("path", musicList.get(i).get("path"));
mc.put("id", musicList.get(i).get("id"));
mc.put("musicAlbumImage",
musicList.get(i).get("musicAlbumImage"));
l.add(mc);
}
}
chile.add(l);
}
a = new SimpleExpandableListAdapter(this, lis,
android.R.layout.simple_expandable_list_item_1,
new String[] { "name" }, new int[] { android.R.id.text1 },
chile, android.R.layout.simple_expandable_list_item_2,
new String[] { "musicName", "musicTime" }, new int[] {
android.R.id.text1, android.R.id.text2 });
pand.setAdapter(a);
// pand.setOnItemClickListener(new OnItemClickListener() {
// @Override
// public void onItemClick(AdapterView<?> parent, View view, int
// position,
// long id) {
// // TODO Auto-generated method stub
// System.out.println(chile.get(0).get(0).get("path") "********");
// int groupIndex = ExpandableListView.getPackedPositionGroup(position);
// int childIndex = ExpandableListView.getPackedPositionChild(position);
// int type = ExpandableListView.getPackedPositionType(position);
// if(type==ExpandableListView.PACKED_POSITION_TYPE_GROUP){
// }else if(type==ExpandableListView.PACKED_POSITION_TYPE_CHILD){
// System.out.println(chile.get(groupIndex).get(childIndex).get("path") "********");
// }
// }
// });
pand.setOnChildClickListener(new OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
System.out.println( Integer.parseInt(chile.get(groupPosition)
.get(childPosition).get("id")) "ccccccccc*****");
if(musicid==Integer.parseInt(chile.get(groupPosition)
.get(childPosition).get("id"))){
start(null);
}else{
musicid = Integer.parseInt(chile.get(groupPosition)
.get(childPosition).get("id"));
if (binder != null) {
binder.dorevmo();
binder.doRset();
unbindService(conn);
stopService(in);
binder = null;
in = null;
in = new Intent();
in.setAction(action);
// img_zj.
// musicAlbumImage
in.putExtra(
"path",
chile.get(groupPosition).get(childPosition)
.get("path"));
// System.out.println("path" m.get("path") "********");
startService(in);
bindService(in, conn, Context.BIND_AUTO_CREATE);
img_pause.setBackgroundDrawable(getResources().getDrawable(
R.drawable.start));
if("".equals(chile.get(groupPosition).get(childPosition)
.get("musicAlbumImage"))){
img_zj.setBackgroundDrawable(getResources().getDrawable(R.drawable.defaul));
}else{
InputStream i = ClassLoader.getSystemClassLoader()
.getResourceAsStream(
chile.get(groupPosition).get(childPosition)
.get("musicAlbumImage"));
byte[] data = read(i);
Bitmap bit = BitmapFactory.decodeByteArray(data, 0,
data.length);
img_zj.setImageBitmap(bit);
}
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
try {
Thread.sleep(500);
if (binder != null) {
binder.init(seekBar, new onMusicOver() {
@Override
public void onMusicOver() {
// TODO Auto-generated method stub
next(null);
}
});
}
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}).start();
f = true;
img_pause.setBackgroundDrawable(getResources().getDrawable(
R.drawable.start));
}
}
return false;
}
});
}
public void up(View v) {
if (in != null && binder != null) {
binder.dorevmo();
binder.dostop();
unbindService(conn);
stopService(in);
}
int size = musicList.size();
if (musicid <= 0) {
musicid = size-1 ;
} else {
musicid = musicid - 1;
}
in = new Intent();
in.setAction(action);
in.putExtra("path", musicList.get(musicid).get("path"));
startService(in);
bindService(in, conn, Context.BIND_AUTO_CREATE);
img_pause.setBackgroundDrawable(getResources().getDrawable(
R.drawable.start));
if("".equals(musicList.get(musicid).get("musicAlbumImage"))){
img_zj.setBackgroundDrawable(getResources().getDrawable(R.drawable.defaul));
}else{
InputStream i = ClassLoader.getSystemClassLoader()
.getResourceAsStream(
musicList.get(musicid).get("musicAlbumImage"));
byte[] data = read(i);
Bitmap bit = BitmapFactory.decodeByteArray(data, 0,
data.length);
img_zj.setImageBitmap(bit);
}
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (binder != null) {
binder.init(seekBar, new onMusicOver() {
@Override
public void onMusicOver() {
// TODO Auto-generated method stub
next(null);
}
});
}
}
}).start();
}
public void start(View v) {
if (f) {
binder.dopause();
img_pause.setBackgroundDrawable(getResources().getDrawable(
R.drawable.pause));
f = false;
} else {
binder.dostart();
img_pause.setBackgroundDrawable(getResources().getDrawable(
R.drawable.start));
f = true;
}
}
public void next(View v) {
if (in != null && binder != null) {
binder.dorevmo();
binder.dostop();
unbindService(conn);
stopService(in);
}
int size = musicList.size();
if (size-1 <= musicid) {
musicid = 0;
} else {
musicid = musicid 1;
}
in = new Intent();
in.setAction(action);
in.putExtra("path", musicList.get(musicid).get("path"));
startService(in);
bindService(in, conn, Context.BIND_AUTO_CREATE);
img_pause.setBackgroundDrawable(getResources().getDrawable(
R.drawable.start));
if("".equals(musicList.get(musicid).get("musicAlbumImage"))){
img_zj.setBackgroundDrawable(getResources().getDrawable(R.drawable.defaul));
}else{
InputStream i = ClassLoader.getSystemClassLoader()
.getResourceAsStream(
musicList.get(musicid).get("musicAlbumImage"));
byte[] data = read(i);
Bitmap bit = BitmapFactory.decodeByteArray(data, 0,
data.length);
img_zj.setImageBitmap(bit);
}
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (binder != null) {
binder.init(seekBar, new onMusicOver() {
@Override
public void onMusicOver() {
// TODO Auto-generated method stub
next(null);
}
});
}
}
}).start();
showNotification();
}
public List<Map<String, String>> loadSongs() {
// ����sdcard���ϵ����и�����Ϣ
// �����װ������Ϣ�Ĵ���
// ��ѯ���и���
ContentResolver musicResolver = this.getContentResolver();
Cursor musicCursor = musicResolver.query(
MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, null,
MediaStore.Audio.Media.SIZE ">80000", null, null);
int musicColumnIndex;
if (null != musicCursor && musicCursor.getCount() > 0) {
for (musicCursor.moveToFirst(); !musicCursor.isAfterLast(); musicCursor
.moveToNext()) {
Map musicDataMap = new HashMap();
musicColumnIndex = musicCursor
.getColumnIndex(MediaStore.Audio.AudioColumns._ID);
int musicRating = musicCursor.getInt(musicColumnIndex);
musicDataMap.put("musicRating", musicRating "");
musicDataMap.put("id",size "");
size=size 1;
// ȡ�����ֲ���·��
musicColumnIndex = musicCursor
.getColumnIndex(MediaStore.Audio.AudioColumns.DATA);
musicPath = musicCursor.getString(musicColumnIndex);
musicDataMap.put("musicPath", musicPath);
// ȡ�����ֵ�����
musicColumnIndex = musicCursor
.getColumnIndex(MediaStore.Audio.AudioColumns.TITLE);
musicName = musicCursor.getString(musicColumnIndex);
musicDataMap.put("musicName", musicName);
// ȡ�����ֵ�ר������
musicColumnIndex = musicCursor
.getColumnIndex(MediaStore.Audio.AudioColumns.ALBUM);
musicAlbum = musicCursor.getString(musicColumnIndex);
musicDataMap.put("musicAlbum", musicAlbum);
// ȡ�����ֵ��ݳ���
musicColumnIndex = musicCursor
.getColumnIndex(MediaStore.Audio.AudioColumns.ARTIST);
musicArtist = musicCursor.getString(musicColumnIndex);
musicDataMap.put("musicArtist", musicArtist);
// ȡ�ø�����Ӧ��ר����Ӧ��Key
musicColumnIndex = musicCursor
.getColumnIndex(MediaStore.Audio.AudioColumns.ALBUM_KEY);
musicAlbumKey = musicCursor.getString(musicColumnIndex);
// ȡ�ø����Ĵ�С
musicColumnIndex = musicCursor
.getColumnIndex(MediaStore.Audio.AudioColumns.DURATION);
musicTime = musicCursor.getInt(musicColumnIndex);
//
// Time musicTime = new Time();
// musicTime.set(musicTime);
String readableTime = ":" ;
int m=musicTime% 60000/1000;
int o=musicTime / 60000;
if(o==0){
readableTime="00" readableTime;
}else if(0<o&&o<10){
readableTime="0" o readableTime;
}else{
readableTime=o readableTime;
}
if(m<10){
readableTime=readableTime "0" m;
}else{
readableTime= readableTime m;
}
musicDataMap.put("musicTime", readableTime);
//
musicColumnIndex = musicCursor
.getColumnIndex(MediaStore.Audio.AudioColumns.DATA);
String path = musicCursor.getString(musicColumnIndex);
musicDataMap.put("path", path);
//
musicColumnIndex = musicCursor
.getColumnIndex(MediaStore.Audio.AudioColumns.ARTIST);
String display = musicCursor.getString(musicColumnIndex);
musicDataMap.put("displayName", display);
String[] argArr = { musicAlbumKey };
ContentResolver albumResolver = this.getContentResolver();
Cursor albumCursor = albumResolver.query(
MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, null,
MediaStore.Audio.AudioColumns.ALBUM_KEY " = ?",
argArr, null);
if (null != albumCursor && albumCursor.getCount() > 0) {
albumCursor.moveToFirst();
int albumArtIndex = albumCursor
.getColumnIndex(MediaStore.Audio.AlbumColumns.ALBUM_ART);
musicAlbumArtPath = albumCursor.getString(albumArtIndex);
if (null != musicAlbumArtPath
&& !"".equals(musicAlbumArtPath)) {
musicDataMap.put("musicAlbumImage", musicAlbumArtPath);
} else {
musicDataMap.put("musicAlbumImage",
"");
}
} else {
// û��ר�����壬��Ĭ��ͼƬ
musicDataMap.put("musicAlbumImage",
"");
}
musicList.add(musicDataMap);
}
}
return musicList;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
if (keyCode == KeyEvent.KEYCODE_BACK) {
if (System.currentTimeMillis() - mExitTime > 2000) {
Toast.makeText(this, "�ٰ�һ���˳�����", Toast.LENGTH_SHORT).show();
mExitTime = System.currentTimeMillis();
} else {
for (int i = 0; i < activityList.size(); i ) {
if (null != activityList.get(i)) {
activityList.get(i).finish();
}
}
System.exit(0);// �����˳�����
}
return true;
}
return super.onKeyDown(keyCode, event);
}
public static byte[] read(InputStream in) {
// TODO Auto-generated method stub
ByteArrayOutputStream outs = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
try {
while ((len = in.read(buffer)) != -1) {
outs.write(buffer, 0, len);
}
in.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return outs.toByteArray();
}
@Override
protected void onStop() {
// TODO Auto-generated method stub
showNotification();
super.onStop();
}
public void showNotification(){
if(musicid!=10000){
notification = new Notification(R.drawable.logo, "���ڲ��Ÿ�����" musicList.get(musicid).get("musicName"), System.currentTimeMillis());
//Intent intent=new Intent(Intent.ACTION_CALL,Uri.parse("tel:18554622114"));
try {
ActivityInfo[] activitys = getPackageManager()
.getPackageInfo(getPackageName(),
PackageManager.GET_ACTIVITIES).activities;
Intent intent=new Intent();
intent.setClassName(getPackageName(), activitys[0].name);
PendingIntent in=PendingIntent.getActivity(getApplicationContext(), 100,intent , 0);
notification.setLatestEventInfo(getApplicationContext(),"���ڲ���",musicList.get(musicid).get("musicName"), in);
//notification.defaults=Notification.DEFAULT_SOUND;
notification.flags=notification.FLAG_AUTO_CANCEL;
NotificationManager nm=(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
nm.notify(0,notification);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
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