获取当前app的签名信息，当前app签名, /**

获取当前app的签名信息，当前app签名, /**

    /**      * get signature of current package      * @param context      * @return signature, null if there is no signature      */      public static String getSignature(Context context){          Log.i(TAG, "SignatureUtils.getSignature");          PackageManager pm = context.getPackageManager();          String pkgName = context.getPackageName();          try {              PackageInfo pi = pm.getPackageInfo(pkgName, PackageManager.GET_SIGNATURES);              Signature[] signatures = pi.signatures;              if(signatures != null && signatures.length > 0){                  String signature =  signatures[0].toCharsString();                  Log.i(TAG, "Signature of current package is : " + signature);                  return  signature;              }          } catch (PackageManager.NameNotFoundException e1) {              e1.printStackTrace();          }          return null;      }