new features user can choose output charset

README.md

@@ -45,8 +45,14 @@ implementation 'com.github.hsmnzaydn:easy-csv:1.0.0'
 EasyCsv easyCsv = new EasyCsv(MainActivity.this);
 
 ```
+* to output the file in diffrent charset create EasyCsv object with below constructer
+``` java
+
+EasyCsv easyCsv = new EasyCsv(MainActivity.this, StandardCharsets.YOUR_CHOOISE);
+
+```
+
 
-
 
 **Step 2: Create your headerlist and datalist**
 
@@ -85,6 +91,10 @@ public void onFail(String err) {
 });
 
 ```
+# Changelog
+* 3/5/2020
+— you can output the file with chosen Charset like UTF-8 and UTF-16 etc ...
+
 # License
 <pre>
 Copyright 2018 Huseyin Serkan Ozaydin

app/build.gradle

@@ -4,7 +4,7 @@ android {
     compileSdkVersion 28
     defaultConfig {
         applicationId "net.ozaydin.serkan.easy_csv_creator"
-        minSdkVersion 15
+        minSdkVersion 19
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"

app/src/main/java/net/ozaydin/serkan/easy_csv_creator/MainActivity.java

@@ -9,6 +9,7 @@
 import net.ozaydin.serkan.easy_csv.FileCallback;
 
 import java.io.File;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -21,7 +22,8 @@ protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
-        EasyCsv easyCsv = new EasyCsv(MainActivity.this);
+        EasyCsv easyCsv = new EasyCsv(MainActivity.this, StandardCharsets.UTF_16LE);
+        easyCsv = new EasyCsv(MainActivity.this, StandardCharsets.UTF_8); //with custom Charset outputfile
 
         List<String> headerList = new ArrayList<>();
         headerList.add("Name.Surname.Age.Adress.Location.Education-");

easy_csv/src/main/java/net/ozaydin/serkan/easy_csv/EasyCsv.java

@@ -12,9 +12,9 @@
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
+import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.List;
-
 import io.reactivex.Observable;
 import io.reactivex.Observer;
 import io.reactivex.disposables.Disposable;
@@ -23,7 +23,7 @@ public class EasyCsv {
     private Activity activity;
     private File file;
     private OutputStream outputStream;
-
+    private Charset outputCharset;
     private String separatorColumn=",";
     private String seperatorLine="\r\n";
 
@@ -32,7 +32,10 @@ public EasyCsv(Activity activity) {
         this.activity = activity;
     }
 
-
+    public EasyCsv(Activity activity, Charset outputCharset) {
+        this.activity = activity;
+        this.outputCharset = outputCharset;
+    }
     /**
      * It is used to create a csv file by processing the data received from the user.
      * @param fileName Name of will create file
@@ -103,6 +106,9 @@ public void onSubscribe(Disposable d) {
                         @Override
                         public void onNext(Object o) {
                             String dataWithLineBreak = (String) o;
+                            if (outputCharset != null) {
+                                dataWithLineBreak = Utils.convertCharset(outputCharset, dataWithLineBreak);
+                            }
                             try {
                                 finalFo.write(dataWithLineBreak.getBytes());
                             } catch (IOException e) {

easy_csv/src/main/java/net/ozaydin/serkan/easy_csv/Utility/Utils.java

@@ -1,5 +1,8 @@
 package net.ozaydin.serkan.easy_csv.Utility;
 
+import java.nio.ByteBuffer;
+import java.nio.CharBuffer;
+import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -29,6 +32,20 @@ public static List<String> separatorReplace(String separatorColumnSign,String se
         return strings;
     }
 
+    public static String convertCharset(Charset outputCharset, String text) {
+        try {
+            Charset defaultCharset = Charset.defaultCharset();
+            ByteBuffer inputBuffer = ByteBuffer.wrap(text.getBytes());
 
+            CharBuffer data = defaultCharset.decode(inputBuffer);
+            ByteBuffer outputBuffer = outputCharset.encode(data);
+            byte[] outputData = outputBuffer.array();
+
+            return new String(outputData, outputCharset);
+
+        } catch (Exception e) {
+            throw new IllegalStateException(e);
+        }
+    }
 
 }