fix zip on android

Author: plrthink

android/src/main/java/com/rnziparchive/RNZipArchiveModule.java

@@ -327,7 +327,7 @@ public void zipWithPassword(String fileOrDirectory, String destDirectory, String
       parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
       parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
 
-      String encParts[] = _encryptionMethod.split("-");
+      String encParts[] = encryptionMethod.split("-");
 
       if (password != null && !password.isEmpty()) {
         parameters.setEncryptFiles(true);
@@ -340,7 +340,7 @@ public void zipWithPassword(String fileOrDirectory, String destDirectory, String
           } else {
             parameters.setAesKeyStrength(Zip4jConstants.ENC_METHOD_STANDARD);
           }
-        } else if (_encryptionMethod.equals("STANDARD")) {
+        } else if (encryptionMethod.equals("STANDARD")) {
           parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_STANDARD);
           Log.d(TAG, "Standard Encryption");
         } else {

index.js

@@ -17,7 +17,7 @@ export const unzipWithPassword = (source, target, password) => {
   return RNZipArchive.unzipWithPassword(source, target, password)
 }
 
-export const zipWithPassword = (source, target, password, encryptionMethod) => {
+export const zipWithPassword = (source, target, password, encryptionMethod = '') => {
   return RNZipArchive.zipWithPassword(source, target, password, encryptionMethod)
 }