功能分類：影音

支持平臺(tái)：Android

運(yùn)行環(huán)境：Android

開發(fā)語言：Java

開發(fā)工具：Eclipse

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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", "舊城"); 
        HashMap<string, object=""> group2 = new HashMap<string, object="">(); 
        group2.put("name", "舊夢(mèng)"); 
        HashMap<string, object=""> group3 = new HashMap<string, object="">(); 
        group3.put("name", "舊人");//設(shè)置收藏類別 
        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("確認(rèn)退出嗎？"); 
        builder.setTitle("提示"); 
        builder.setPositiveButton("確認(rèn)", 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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源碼下載地址：http://down.51cto.com/data/1968750