add a toggle for using english

app/build.gradle

@@ -47,7 +47,7 @@ ext {
 }
 
 dependencies {
-    compile 'com.simplemobiletools:commons:2.38.5'
+    compile 'com.simplemobiletools:commons:2.38.6'
     compile 'com.facebook.stetho:stetho:1.5.0'
     compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 

app/src/main/kotlin/com/simplemobiletools/notes/App.kt

@@ -3,7 +3,9 @@ package com.simplemobiletools.notes
 import android.app.Application
 import com.facebook.stetho.Stetho
 import com.simplemobiletools.notes.BuildConfig.USE_LEAK_CANARY
+import com.simplemobiletools.notes.extensions.config
 import com.squareup.leakcanary.LeakCanary
+import java.util.*
 
 class App : Application() {
     override fun onCreate() {
@@ -15,6 +17,12 @@ class App : Application() {
             LeakCanary.install(this)
         }
 
+        if (config.useEnglish) {
+            val conf = resources.configuration
+            conf.locale = Locale.ENGLISH
+            resources.updateConfiguration(conf, resources.displayMetrics)
+        }
+
         if (BuildConfig.DEBUG)
             Stetho.initializeWithDefaults(this)
     }

app/src/main/kotlin/com/simplemobiletools/notes/activities/MainActivity.kt

@@ -44,6 +44,7 @@ class MainActivity : SimpleActivity(), ViewPager.OnPageChangeListener {
 
     var noteViewWithTextSelected: MyEditText? = null
     private var wasInit = false
+    private var storedUseEnglish = false
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -72,11 +73,17 @@ class MainActivity : SimpleActivity(), ViewPager.OnPageChangeListener {
             }
         }
 
+        storeStateVariables()
         wasInit = true
     }
 
     override fun onResume() {
         super.onResume()
+        if (storedUseEnglish != config.useEnglish) {
+            restartActivity()
+            return
+        }
+
         invalidateOptionsMenu()
         pager_title_strip.apply {
             setTextSize(TypedValue.COMPLEX_UNIT_PX, getTextSize())
@@ -142,6 +149,10 @@ class MainActivity : SimpleActivity(), ViewPager.OnPageChangeListener {
         }
     }
 
+    private fun storeStateVariables() {
+        storedUseEnglish = config.useEnglish
+    }
+
     private fun handleText(text: String) {
         val notes = mDb.getNotes()
         val list = arrayListOf<RadioItem>().apply {

app/src/main/kotlin/com/simplemobiletools/notes/activities/SettingsActivity.kt

@@ -4,7 +4,9 @@ import android.content.res.Resources
 import android.os.Bundle
 import android.view.View
 import com.simplemobiletools.commons.dialogs.RadioGroupDialog
+import com.simplemobiletools.commons.extensions.beVisibleIf
 import com.simplemobiletools.commons.extensions.updateTextColors
+import com.simplemobiletools.commons.extensions.useEnglishToggled
 import com.simplemobiletools.commons.models.RadioItem
 import com.simplemobiletools.notes.R
 import com.simplemobiletools.notes.extensions.config
@@ -13,6 +15,7 @@ import com.simplemobiletools.notes.extensions.updateWidget
 import com.simplemobiletools.notes.helpers.*
 import com.simplemobiletools.notes.models.Note
 import kotlinx.android.synthetic.main.activity_settings.*
+import java.util.*
 
 class SettingsActivity : SimpleActivity() {
     lateinit var res: Resources
@@ -27,6 +30,7 @@ class SettingsActivity : SimpleActivity() {
         super.onResume()
 
         setupCustomizeColors()
+        setupUseEnglish()
         setupDisplaySuccess()
         setupClickableLinks()
         setupMonospacedFont()
@@ -44,6 +48,16 @@ class SettingsActivity : SimpleActivity() {
         }
     }
 
+    private fun setupUseEnglish() {
+        settings_use_english_holder.beVisibleIf(config.wasUseEnglishToggled || Locale.getDefault().language != "en")
+        settings_use_english.isChecked = config.useEnglish
+        settings_use_english_holder.setOnClickListener {
+            settings_use_english.toggle()
+            config.useEnglish = settings_use_english.isChecked
+            useEnglishToggled()
+        }
+    }
+
     private fun setupDisplaySuccess() {
         settings_display_success.isChecked = config.displaySuccess
         settings_display_success_holder.setOnClickListener {

app/src/main/res/layout/activity_settings.xml

@@ -30,6 +30,26 @@
 
         </RelativeLayout>
 
+        <RelativeLayout
+            android:id="@+id/settings_use_english_holder"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/medium_margin"
+            android:background="?attr/selectableItemBackground"
+            android:padding="@dimen/activity_margin">
+
+            <com.simplemobiletools.commons.views.MySwitchCompat
+                android:id="@+id/settings_use_english"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="@null"
+                android:clickable="false"
+                android:paddingLeft="@dimen/medium_margin"
+                android:paddingStart="@dimen/medium_margin"
+                android:text="@string/use_english_language"/>
+
+        </RelativeLayout>
+
         <RelativeLayout
             android:id="@+id/settings_display_success_holder"
             android:layout_width="match_parent"