android-获得".apk"文件的相关信息。包名、版本号等等

    String filePath = "/sdcard/feijiedemo.apk";        PackageManager packageManager = getPackageManager();        PackageInfo packageInfo = packageManager.getPackageArchiveInfo(filePath, PackageManager.GET_ACTIVITIES);        Log.d("name", packageInfo.packageName);        Log.d("uid", packageInfo.sharedUserId);        Log.d("vname", packageInfo.versionName);        Log.d("code", packageInfo.versionCode+"");