diff --git a/app/src/main/kotlin/com/simplemobiletools/notes/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/notes/activities/MainActivity.kt
index de20676b..714c7861 100644
--- a/app/src/main/kotlin/com/simplemobiletools/notes/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/notes/activities/MainActivity.kt
@@ -61,9 +61,11 @@ class MainActivity : SimpleActivity(), ViewPager.OnPageChangeListener {
     override fun onResume() {
         super.onResume()
         invalidateOptionsMenu()
-        pager_title_strip.setTextSize(TypedValue.COMPLEX_UNIT_PX, getTextSize())
-        pager_title_strip.setGravity(Gravity.CENTER_VERTICAL)
-        pager_title_strip.setNonPrimaryAlpha(0.4f)
+        pager_title_strip.apply {
+            setTextSize(TypedValue.COMPLEX_UNIT_PX, getTextSize())
+            setGravity(Gravity.CENTER_VERTICAL)
+            setNonPrimaryAlpha(0.4f)
+        }
     }
 
     override fun onDestroy() {
diff --git a/app/src/main/kotlin/com/simplemobiletools/notes/databases/DBHelper.kt b/app/src/main/kotlin/com/simplemobiletools/notes/databases/DBHelper.kt
index dff00ade..76147dc3 100644
--- a/app/src/main/kotlin/com/simplemobiletools/notes/databases/DBHelper.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/notes/databases/DBHelper.kt
@@ -5,17 +5,15 @@ import android.content.Context
 import android.database.Cursor
 import android.database.sqlite.SQLiteDatabase
 import android.database.sqlite.SQLiteOpenHelper
-import com.simplemobiletools.notes.helpers.PREFS_KEY
 import com.simplemobiletools.notes.R
-import com.simplemobiletools.notes.helpers.TEXT
-import com.simplemobiletools.notes.helpers.TYPE_NOTE
 import com.simplemobiletools.notes.extensions.getIntValue
 import com.simplemobiletools.notes.extensions.getStringValue
+import com.simplemobiletools.notes.helpers.TYPE_NOTE
 import com.simplemobiletools.notes.models.Note
 import java.util.*
 
 class DBHelper private constructor(private val mContext: Context) : SQLiteOpenHelper(mContext, DBHelper.DB_NAME, null, DBHelper.DB_VERSION) {
-    private val mDb: SQLiteDatabase
+    private val mDb: SQLiteDatabase = writableDatabase
 
     companion object {
         private val DB_NAME = "notes.db"
@@ -31,10 +29,6 @@ class DBHelper private constructor(private val mContext: Context) : SQLiteOpenHe
         fun newInstance(context: Context) = DBHelper(context)
     }
 
-    init {
-        mDb = writableDatabase
-    }
-
     override fun onCreate(db: SQLiteDatabase) {
         db.execSQL("CREATE TABLE $TABLE_NAME ($COL_ID INTEGER PRIMARY KEY, $COL_TITLE TEXT UNIQUE, $COL_VALUE TEXT, $COL_TYPE INTEGER DEFAULT 0, $COL_PATH TEXT)")
         insertFirstNote(db)
@@ -50,9 +44,7 @@ class DBHelper private constructor(private val mContext: Context) : SQLiteOpenHe
 
     private fun insertFirstNote(db: SQLiteDatabase) {
         val generalNote = mContext.resources.getString(R.string.general_note)
-        val prefs = mContext.getSharedPreferences(PREFS_KEY, Context.MODE_PRIVATE)
-        val text = prefs.getString(TEXT, "")
-        val note = Note(1, generalNote, text, TYPE_NOTE)
+        val note = Note(1, generalNote, "", TYPE_NOTE)
         insertNote(note, db)
     }
 
@@ -82,10 +74,13 @@ class DBHelper private constructor(private val mContext: Context) : SQLiteOpenHe
         val cols = arrayOf(COL_ID)
         val selection = "$COL_TITLE = ?"
         val selectionArgs = arrayOf(title)
-        val cursor = mDb.query(TABLE_NAME, cols, selection, selectionArgs, null, null, null) ?: return false
-        val cnt = cursor.count
-        cursor.close()
-        return cnt == 1
+        var cursor: Cursor? = null
+        try {
+            cursor = mDb.query(TABLE_NAME, cols, selection, selectionArgs, null, null, null)
+            return cursor.count == 1
+        } finally {
+            cursor?.close()
+        }
     }
 
     fun getNotes(): List<Note> {
@@ -94,7 +89,7 @@ class DBHelper private constructor(private val mContext: Context) : SQLiteOpenHe
         var cursor: Cursor? = null
         try {
             cursor = mDb.query(TABLE_NAME, cols, null, null, null, null, "$COL_TITLE COLLATE NOCASE ASC")
-            if (cursor != null && cursor.moveToFirst()) {
+            if (cursor?.moveToFirst() == true) {
                 do {
                     val id = cursor.getIntValue(COL_ID)
                     val title = cursor.getStringValue(COL_TITLE)
@@ -119,7 +114,7 @@ class DBHelper private constructor(private val mContext: Context) : SQLiteOpenHe
         var cursor: Cursor? = null
         try {
             cursor = mDb.query(TABLE_NAME, cols, selection, selectionArgs, null, null, null)
-            if (cursor != null && cursor.moveToFirst()) {
+            if (cursor?.moveToFirst() == true) {
                 val title = cursor.getStringValue(COL_TITLE)
                 val value = cursor.getStringValue(COL_VALUE)
                 val type = cursor.getIntValue(COL_TYPE)
diff --git a/app/src/main/kotlin/com/simplemobiletools/notes/helpers/Constants.kt b/app/src/main/kotlin/com/simplemobiletools/notes/helpers/Constants.kt
index 1c687f57..78a0e7e4 100644
--- a/app/src/main/kotlin/com/simplemobiletools/notes/helpers/Constants.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/notes/helpers/Constants.kt
@@ -5,8 +5,6 @@ val NOTE_ID = "note_id"
 
 // shared preferences
 val PREFS_KEY = "Notes"
-val IS_FIRST_RUN = "is_first_run"
-val IS_DARK_THEME = "is_dark_theme"
 val CURRENT_NOTE_ID = "current_note_id"
 val WIDGET_NOTE_ID = "widget_note_id"
 val FONT_SIZE = "font_size"