android – 我如何确定该应用程序可以移动到SD卡？

我已经检查了InstalledAppDetails的Android源代码,但无法获得解决方案.

谢谢

private List<App> loadInstalledApps(Boolean includeSysApps) 
   {
       List<App> apps = new ArrayList<App>();

       //   the package manager contains the information about all installed apps
       PackageManager packageManager = getPackageManager();

       List<PackageInfo> packs = packageManager.geTinstalledPackages(0); //PackageManager.GET_Meta_DATA 

       for(int i = 0; i < packs.size(); i++) 
       {
           PackageInfo p = packs.get(i);
           ApplicationInfo a = p.applicationInfo;
           // skip system apps if they shall not be included
           if ((!includeSysApps) && ((a.flags & ApplicationInfo.FLAG_SYstem) == 1)) 
           {
               conTinue;
           }

           App app = new App();
           app.settitle(p.applicationInfo.loadLabel(packageManager).toString());
           app.setPackagename(p.packageName);
           app.setVersionName(p.versionName);
           app.setVersionCode(p.versionCodE);
           app.seTinstallDir(p.applicationInfo.sourceDir);
           app.seTinstallSize(calculateSize(app.geTinstallDir()));
           CharSequence description = p.applicationInfo.loadDescription(packageManager);
           app.setDescription(description != null ? description.toString() : "");
           if(app.geTinstallDir().contains("/mnt"))
           {
               //app on sdcard
               apps.add(app);
           }
           else
           {
               //app on phone memory
               apps.add(app);
           }        
       }
       return apps;
   }