问Flutter:应用程序在加密时卡住

EN

Future sifrele() async {
    try {
      crypt.setOverwriteMode(AesCryptOwMode.on);
      encFilepath = await crypt.encryptFile(realPath + '/WhatCarCanYouGetForAGrand.mp4', realPath + '/video.mp4.aes');
      print('The encryption has been completed successfully.');
    } on AesCryptException catch (e) {
      if (e.type == AesCryptExceptionType.destFileExists) {
        print('The encryption has been completed unsuccessfully.');
      }
      return;
    }
  }

Future decrypting() async {
    var videos = File(realPath + "/ElephantsDream.mp4.aes");
    try {
      realPath = await crypt.decryptFile(realPath + '/video.mp4.aes', realPath + '/cozulen.mp4');
      print('The decryption has been completed successfully.');
    } on AesCryptException catch (e) {
      if (e.type == AesCryptExceptionType.destFileExists) {
        print('The decryption has been completed unsuccessfully.');
      }
      return;
    }
  }