功能分类：影音
支持平台：Android
运行环境：Android
开发语言：Java
开发工具：Eclipse
源码大小：7.88M
源码简介
学习使用的音乐播放器，登陆密码是123,。
源码运行截图
- 登陆
- 音乐列表显示
- 播放界面
- 收藏界面
源码片段
package com.xue.Mp3Player;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.ExpandableListActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.ExpandableListView;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;
import com.xue.Mp3Player.R;
import com.xue.Mp3Player.Utils.DataUtils;
import com.xue.Mp3Player.Utils.MyApplication;
import com.xue.Mp3Player.Utils.PlayUtils;
public class MyMusicListActivity extends ExpandableListActivity {
private ExpandableListView myMusicListView;
private ArrayList<hashmap<string, object="">> groupsList;
private List<list<hashmap<string, object="">>> childsList;
public static MyMusicListAdapter listAdapter;
private static Context context;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mymusic_list_layout);
myMusicListView = getExpandableListView();
context = this;
groupsList = new ArrayList<hashmap<string, object="">>();
HashMap<string, object=""> group1 = new HashMap<string, object="">();
group1.put("name", "旧城");
HashMap<string, object=""> group2 = new HashMap<string, object="">();
group2.put("name", "旧梦");
HashMap<string, object=""> group3 = new HashMap<string, object="">();
group3.put("name", "旧人");//设置收藏类别
groupsList.add(group1);
groupsList.add(group2);
groupsList.add(group3);
childsList = new ArrayList<list<hashmap<string, object="">>>();
childsList.add(MyApplication.getHappyMusicList());
childsList.add(MyApplication.getQuietMusicList());
childsList.add(MyApplication.getSadMusicList());
listAdapter = new MyMusicListAdapter(this, groupsList, childsList);
myMusicListView.setAdapter(listAdapter);
}
public static Context getContext(){
return context;
}
@Override
public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {
HashMap<string, object=""> map = childsList.get(groupPosition).get(childPosition);
if (map.get("name").equals(PlayService.name) && MyApplication.playStatus == 1) {
Toast.makeText(context, "正在播放...", 0).show();
}else {
boolean b = PlayUtils.addMusicToList(context, map, MyApplication.getPlayMusicList());
if (b) {
PlayMusicListActivity.myListAdapter.notifyDataSetChanged();
PlayUtils.turnToPlay(map, context);
}
}
return super.onChildClick(parent, v, groupPosition, childPosition, id);
}
public boolean onKeyDown(int keyCode, android.view.KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
backDialog();
}
return false;
};
@Override
protected void onDestroy() {
DataUtils.upData_allLists();
super.onDestroy();
}
public void backDialog() {
AlertDialog.Builder builder = new Builder(this);
builder.setMessage("确认退出吗？");
builder.setTitle("提示");
builder.setPositiveButton("确认", new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
((Activity) context).finish();
new AsyncTask<void, void,="" void="">(){
@Override
protected Void doInBackground(Void... params) {
if (MyApplication.playStatus != 0) {
PlayService.stop();
// PlayService.player.release();
}
DataUtils.upData_allLists();
return null;
}
}.execute();
}
});
builder.setNegativeButton("取消", new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.create().show();
}
class MyMusicListAdapter extends BaseExpandableListAdapter {
private Context context;
private List<hashmap<string, object="">> groups;
private List<list<hashmap<string, object="">>> childs;
private childViewsHolder childHolder;
private GroupViewsHolder groupHolder;
public MyMusicListAdapter(Context context, List<hashmap<string, object="">> groups, List<list<hashmap<string, object="">>> childs) {
this.context = context;
this.groups = groups;
this.childs = childs;
}
private class childViewsHolder {
TextView childText;
ImageButton childButton;
}
public Object getChild(int arg0, int arg1) {
return childs.get(arg0).get(arg1);
}
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
public void removeChildItem(int groupPosition, int childPosition) {
childs.get(groupPosition).remove(childPosition);
this.notifyDataSetChanged();
}
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
if (convertView != null) {
childHolder = (childViewsHolder) convertView.getTag();
} else {
childHolder = new childViewsHolder();
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.mymusic_childs_layout, null);
childHolder.childText = (TextView) convertView.findViewById(R.id.text_childItem);
childHolder.childButton = (ImageButton) convertView.findViewById(R.id.button_deleteChildItem);
convertView.setTag(childHolder);
}
HashMap<string, object=""> childItem = childs.get(groupPosition).get(childPosition);
if (childItem != null) {
String name = (String) childItem.get("name");
childHolder.childText.setText(name);
childHolder.childButton.setOnClickListener(new childItemOnClick(groupPosition, childPosition));
}
return convertView;
}
public class childItemOnClick implements android.view.View.OnClickListener {
private int groupPosition;
private int childPosition;
public childItemOnClick(int groupPosition, int childposition) {
this.groupPosition = groupPosition;
this.childPosition = childposition;
}
public void onClick(View v) {
removeChildItem(groupPosition, childPosition);
}
}
public int getChildrenCount(int groupPosition) {
return childs.get(groupPosition).size();
}
public Object getGroup(int groupPosition) {
return groups.get(groupPosition);
}
public int getGroupCount() {
return groups.size();
}
public long getGroupId(int groupPosition) {
return groupPosition;
}
private class GroupViewsHolder {
TextView groupText;
ImageButton groupButton;
}
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
if (convertView != null) {
groupHolder = (GroupViewsHolder) convertView.getTag();
} else {
groupHolder = new GroupViewsHolder();
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.mymusic_groups_layout, null);
groupHolder.groupText = (TextView) convertView.findViewById(R.id.text_groupItem);
groupHolder.groupButton = (ImageButton) convertView.findViewById(R.id.button_playAll);
convertView.setTag(groupHolder);
}
HashMap<string, object=""> map = groups.get(groupPosition);
if (map != null) {
String name = (String) map.get("name");
groupHolder.groupText.setText(name);
groupHolder.groupButton.setOnClickListener(new GroupOnClick(groupPosition));
}
return convertView;
}
class GroupOnClick implements View.OnClickListener {
private int position;
public GroupOnClick(int position) {
this.position = position;
}
public void onClick(View v) {
switch (position) {
case 0:
PlayUtils.turnToPlay_List(context, MyApplication.getHappyMusicList());
break;
case 1:
PlayUtils.turnToPlay_List(context, MyApplication.getQuietMusicList());
break;
case 2:
PlayUtils.turnToPlay_List(context, MyApplication.getSadMusicList());
break;
default:
break;
}
}
}
public boolean hasStableIds() {
// TODO Auto-generated method stub
return false;
}
public boolean isChildSelectable(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return true;
}
}
}
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