public static String getLabel(PluginDescriptor pd) {
   PackageManager pm = PluginLoader.getApplication().getPackageManager();
   PackageInfo info =
       pm.getPackageArchiveInfo(pd.getInstalledPath(), PackageManager.GET_ACTIVITIES);
   if (info != null) {
     ApplicationInfo appInfo = info.applicationInfo;
     appInfo.sourceDir = pd.getInstalledPath();
     appInfo.publicSourceDir = pd.getInstalledPath();
     String label = null;
     try {
       if (!isMainResId(appInfo.labelRes)) {
         label = pm.getApplicationLabel(appInfo).toString();
       }
     } catch (Resources.NotFoundException e) {
     }
     if (label == null || label.equals(pd.getPackageName())) {
       // 可能设置的lable是来自宿主的资源
       if (pd.getDescription() != null) {
         int id = ResourceUtil.getResourceId(pd.getDescription());
         if (id != 0) {
           // 再宿主中查一次
           try {
             label = PluginLoader.getApplication().getResources().getString(id);
           } catch (Resources.NotFoundException e) {
           }
         }
       }
     }
     if (label != null) {
       return label;
     }
   }
   return pd.getDescription();
 }
 public static Bundle getApplicationMetaData(String apkPath) {
   // 暂时只查询Applicatoin节点下的meta信息,其他组件节点下的meta先不管
   PackageInfo info =
       PluginLoader.getApplication()
           .getPackageManager()
           .getPackageArchiveInfo(apkPath, PackageManager.GET_META_DATA);
   if (info.applicationInfo != null) {
     return info.applicationInfo.metaData;
   }
   return null;
 }
 @TargetApi(Build.VERSION_CODES.GINGERBREAD)
 public static Drawable getLogo(PluginDescriptor pd) {
   PackageManager pm = PluginLoader.getApplication().getPackageManager();
   PackageInfo info =
       pm.getPackageArchiveInfo(pd.getInstalledPath(), PackageManager.GET_ACTIVITIES);
   if (info != null) {
     ApplicationInfo appInfo = info.applicationInfo;
     appInfo.sourceDir = pd.getInstalledPath();
     appInfo.publicSourceDir = pd.getInstalledPath();
     Drawable logo = pm.getApplicationLogo(appInfo);
     return logo;
   }
   return null;
 }