diff --git a/app/src/main/java/com/simplemobiletools/calendar/adapters/MyPagerAdapter.java b/app/src/main/java/com/simplemobiletools/calendar/adapters/MyPagerAdapter.java
deleted file mode 100644
index 936a4b060..000000000
--- a/app/src/main/java/com/simplemobiletools/calendar/adapters/MyPagerAdapter.java
+++ /dev/null
@@ -1,39 +0,0 @@
-package com.simplemobiletools.calendar.adapters;
-
-import android.os.Bundle;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentManager;
-import android.support.v4.app.FragmentStatePagerAdapter;
-
-import com.simplemobiletools.calendar.Constants;
-import com.simplemobiletools.calendar.fragments.MonthFragment;
-
-import java.util.List;
-
-public class MyPagerAdapter extends FragmentStatePagerAdapter {
-    private final List<String> mCodes;
-    private final MonthFragment.NavigationListener mListener;
-
-    public MyPagerAdapter(FragmentManager fm, List<String> codes, MonthFragment.NavigationListener listener) {
-        super(fm);
-        mCodes = codes;
-        mListener = listener;
-    }
-
-    @Override
-    public int getCount() {
-        return mCodes.size();
-    }
-
-    @Override
-    public Fragment getItem(int position) {
-        final Bundle bundle = new Bundle();
-        final String code = mCodes.get(position);
-        bundle.putString(Constants.DAY_CODE, code);
-
-        final MonthFragment fragment = new MonthFragment();
-        fragment.setArguments(bundle);
-        fragment.setListener(mListener);
-        return fragment;
-    }
-}
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyPagerAdapter.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyPagerAdapter.kt
new file mode 100644
index 000000000..bf021b450
--- /dev/null
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyPagerAdapter.kt
@@ -0,0 +1,27 @@
+package com.simplemobiletools.calendar.adapters
+
+import android.os.Bundle
+import android.support.v4.app.Fragment
+import android.support.v4.app.FragmentManager
+import android.support.v4.app.FragmentStatePagerAdapter
+
+import com.simplemobiletools.calendar.Constants
+import com.simplemobiletools.calendar.fragments.MonthFragment
+
+class MyPagerAdapter(fm: FragmentManager, private val mCodes: List<String>, private val mListener: MonthFragment.NavigationListener) : FragmentStatePagerAdapter(fm) {
+
+    override fun getCount(): Int {
+        return mCodes.size
+    }
+
+    override fun getItem(position: Int): Fragment {
+        val bundle = Bundle()
+        val code = mCodes[position]
+        bundle.putString(Constants.DAY_CODE, code)
+
+        val fragment = MonthFragment()
+        fragment.arguments = bundle
+        fragment.setListener(mListener)
+        return fragment
+    }
+}