Question

程序运行效果图：

程序代码：

/**
 * 获取所有软件信息
 * 1.通过异步的方式显示系统中所有软件
 * 2.单击打开指定软件
 * 3.将所有软件的包名和 activity 名保存的本地 SharedPreferences
 * @author jph
 * Date:2014.09.21
 */
public class ScanPackage1 extends Activity {
  /**扫描成功**/
  private final static int FLAG_LOAD_SUCCESS=0x10001;
  private final static int SCANNING=0x10002;  
  private ListView list;
  private List<Map<String, Object>>items=new ArrayList<Map<String,Object>>();
  private SimpleAdapter adapter;
  // 取得所有安装软件信息
  private List<PackageInfo> allPackageInfos;
  // 取得自己安装的软件信息
  private List<PackageInfo> userPackageInfos;
  // 取得系统安装的软件信息
  private List<PackageInfo> sysPackageInfos;  
  Handler mHandler=new Handler(){
    @Override
    public void handleMessage(Message msg) {
      // TODO Auto-generated method stub
      switch (msg.what) {
      case FLAG_LOAD_SUCCESS://完成扫描

        break;
      case SCANNING://正在扫描          
        items.add((Map<String, Object>) msg.obj);
        //通知适配器数据改变
        adapter.notifyDataSetChanged();       
        break;

      default:
        break;
      }       
    }       
  };
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.sp_layout);
    list=(ListView)findViewById(R.id.list);
    new ScanThread().start();
    adapter=new SimpleAdapter(this, items, R.layout.line, new String[]{
        "imgIco","appName","packageName"
    }, new int[]{R.id.imgIco,R.id.tvAppName,R.id.tvAppDesc});
    list.setAdapter(adapter);
    //ViewBinder 该类可以帮助 SimpleAdapter 加载图片（如：Bitmap,Drawable)
    adapter.setViewBinder(new ViewBinder() {      
      @Override
      public boolean setViewValue(View view, Object data,
          String textRepresentation) {
        // TODO Auto-generated method stub
         if(view instanceof ImageView  && data instanceof Drawable){  
            ImageView iv = (ImageView) view;  
            iv.setImageDrawable((Drawable) data);          
             return true;  
           }else{
             return false;  
           }   
      }
    });
    list.setOnItemClickListener(new OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
          long arg3) {
        // TODO Auto-generated method stub
        try {
          PackageInfo pInfo=allPackageInfos.get(arg2);
          Intent intent=new Intent();
          intent.setComponent(new ComponentName(pInfo.packageName, pInfo.activities[0].name));        
          startActivity(intent);
        } catch (Exception e) {
          // TODO: handle exception
          e.printStackTrace();
        }

      }
    });

  }
  // *********--------*创建一个线程加载安装程序*--------------***********//
    private class ScanThread extends Thread {
      @Override
      public void run() {
        // 取得系统安装所有软件信息
        allPackageInfos = getPackageManager().getInstalledPackages(
            PackageManager.GET_UNINSTALLED_PACKAGES
                | PackageManager.GET_ACTIVITIES);
        // 定义用户安装软件信息包
        userPackageInfos = new ArrayList<PackageInfo>();
        // 定义系统安装软件信息包
        sysPackageInfos = new ArrayList<PackageInfo>();       
        // 循环取出所有软件信息
        for (int i = 0; i < allPackageInfos.size(); i++) {          
          // 得到每个软件信息
          PackageInfo temp = allPackageInfos.get(i);
          ApplicationInfo appInfo = temp.applicationInfo;
          if ((appInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0
              || (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
            //系统软件
            sysPackageInfos.add(temp);            

          } else {
            //用户自己安装软件
            userPackageInfos.add(temp);             
          }   
          //获取程序的图标
          Drawable ico=ScanPackage1.this.getPackageManager().getApplicationIcon(appInfo);
          //获取程序的名称
          String appName=(String) ScanPackage1.this.getPackageManager().getApplicationLabel(appInfo);
          Map<String, Object>item=new HashMap<String, Object>();
          //获取程序的包名
          String packageName=appInfo.packageName;     
          item.put("imgIco", ico);
          item.put("appName", appName);
          item.put("packageName", packageName);
          Message message = new Message();
          message.what =SCANNING;
          message.obj = item;
          mHandler.sendMessage(message);

        }
        saveInfo(sysPackageInfos, userPackageInfos);      
        mHandler.sendEmptyMessage(FLAG_LOAD_SUCCESS);
      }
    };

    /**
     * 将系统中所装程序的信息写入到配置文件   
     * @param sysPackageInfos 系统安装软件信息包
     * @param userPackageInfos 用户安装软件信息包
     */
    private void saveInfo(List<PackageInfo> sysPackageInfos,List<PackageInfo> userPackageInfos) {   
       //将用户安装的软件添加到添加到系统软件的集合中
      sysPackageInfos.addAll(userPackageInfos);
      SharedPreferences sp = this.getSharedPreferences("appInfs",
          MODE_PRIVATE);
      Editor editor = sp.edit();
      for (int i = 0; i < sysPackageInfos.size(); i++) {
        try {
          //获取程序的包名
          String packageName = sysPackageInfos.get(i).packageName;
          // 取出 activity 信息
          ActivityInfo activityInfo = sysPackageInfos.get(i).activities[0];
          // 取出 activity 名字
          String activityName=activityInfo.name;          
          //将程序的信息写入到配置文件
          editor.putString(packageName, activityName);          
        } catch (Exception e) {
          // TODO: handle exception
          e.printStackTrace();
        }   

      }     
      editor.commit();
    }
}