取到东西放到ArrayList<Map<String, Object>>里

public List fetch_installed_apps(){
         List<ApplicationInfo> packages = getPackageManager().getInstalledApplications(0);
   list = new ArrayList<Map<String, Object>>(
     packages.size());
   Iterator<ApplicationInfo> l = packages.iterator();
   
   while (l.hasNext()) {
    Map<String, Object> map = new HashMap<String, Object>();
    ApplicationInfo app = (ApplicationInfo) l.next();
    String packageName = app.packageName;
             String label = "";
             try {
                 label = getPackageManager().getApplicationLabel(app).toString();
             } catch (Exception e) {  
              Log.i("Exception",e.toString());
             }
       map = new HashMap<String, Object>();
        map.put("name", label);
       map.put("desc", packageName);
       list.add(map);
   }
   return list;
     }
   
 
 
 
 
private List<Map<String, Object>> buildListForSimpleAdapter(String path) {
   File[] files = new File(path).listFiles();
   List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(files.length);
   Map<String, Object> root = new HashMap<String, Object>();
   root.put("name", "/");
   root.put("img", R.drawable.file_root);
   root.put("path", "go to root directory");
   list.add(root);
   Map<String, Object> pmap = new HashMap<String, Object>();
   pmap.put("name", "..");
   pmap.put("img", R.drawable.file_parent);
   pmap.put("path", "go to paranet Directory");
   list.add(pmap);
   for (File file : files){
    Map<String, Object> map = new HashMap<String, Object>();
    if(file.isDirectory()){
     map.put("img", R.drawable.directory);
    }else{
     map.put("img", R.drawable.file_doc);
    }
    map.put("name", file.getName());
    map.put("path", file.getPath());
    list.add(map);
   }
   return list;
  }