adding a couple common activities and functions

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

@@ -1,12 +1,75 @@
 package com.simplemobiletools.clock.activities
 
+import android.content.Intent
 import android.os.Bundle
+import android.view.Menu
+import android.view.MenuItem
+import android.view.WindowManager
+import com.simplemobiletools.clock.BuildConfig
 import com.simplemobiletools.clock.R
+import com.simplemobiletools.clock.extensions.config
+import com.simplemobiletools.commons.extensions.restartActivity
+import com.simplemobiletools.commons.helpers.LICENSE_KOTLIN
+import com.simplemobiletools.commons.models.FAQItem
 
 class MainActivity : SimpleActivity() {
+    private var storedUseEnglish = false
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
+        storeStateVariables()
+    }
+
+    override fun onResume() {
+        super.onResume()
+        if (storedUseEnglish != config.useEnglish) {
+            restartActivity()
+            return
+        }
+
+        if (config.preventPhoneFromSleeping) {
+            window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
+        }
+    }
+
+    override fun onPause() {
+        super.onPause()
+        storeStateVariables()
+        if (config.preventPhoneFromSleeping) {
+            window.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
+        }
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        menuInflater.inflate(R.menu.menu, menu)
+        return true
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        when (item.itemId) {
+            R.id.settings -> launchSettings()
+            R.id.about -> launchAbout()
+            else -> return super.onOptionsItemSelected(item)
+        }
+        return true
+    }
+
+    private fun storeStateVariables() {
+        storedUseEnglish = config.useEnglish
+    }
+
+    private fun launchSettings() {
+        startActivity(Intent(applicationContext, SettingsActivity::class.java))
+    }
+
+    private fun launchAbout() {
+        val faqItems = arrayListOf(
+                FAQItem(R.string.faq_1_title_commons, R.string.faq_1_text_commons),
+                FAQItem(R.string.faq_2_title_commons, R.string.faq_2_text_commons),
+                FAQItem(R.string.faq_4_title_commons, R.string.faq_4_text_commons)
+        )
+
+        startAboutActivity(R.string.app_name, LICENSE_KOTLIN, BuildConfig.VERSION_NAME, faqItems)
     }
 }

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

@@ -0,0 +1,59 @@
+package com.simplemobiletools.clock.activities
+
+import android.os.Bundle
+import com.simplemobiletools.clock.R
+import com.simplemobiletools.clock.extensions.config
+import com.simplemobiletools.commons.extensions.beVisibleIf
+import com.simplemobiletools.commons.extensions.updateTextColors
+import com.simplemobiletools.commons.extensions.useEnglishToggled
+import kotlinx.android.synthetic.main.activity_settings.*
+import java.util.*
+
+class SettingsActivity : SimpleActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_settings)
+    }
+
+    override fun onResume() {
+        super.onResume()
+
+        setupCustomizeColors()
+        setupUseEnglish()
+        setupAvoidWhatsNew()
+        setupPreventPhoneFromSleeping()
+        updateTextColors(settings_holder)
+    }
+
+    private fun setupCustomizeColors() {
+        settings_customize_colors_holder.setOnClickListener {
+            startCustomizationActivity()
+        }
+    }
+
+    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 setupAvoidWhatsNew() {
+        settings_avoid_whats_new.isChecked = config.avoidWhatsNew
+        settings_avoid_whats_new_holder.setOnClickListener {
+            settings_avoid_whats_new.toggle()
+            config.avoidWhatsNew = settings_avoid_whats_new.isChecked
+        }
+    }
+
+    private fun setupPreventPhoneFromSleeping() {
+        settings_prevent_phone_from_sleeping.isChecked = config.preventPhoneFromSleeping
+        settings_prevent_phone_from_sleeping_holder.setOnClickListener {
+            settings_prevent_phone_from_sleeping.toggle()
+            config.preventPhoneFromSleeping = settings_prevent_phone_from_sleeping.isChecked
+        }
+    }
+}

app/src/main/kotlin/com/simplemobiletools/clock/extensions/Context.kt

@@ -0,0 +1,6 @@
+package com.simplemobiletools.clock.extensions
+
+import android.content.Context
+import com.simplemobiletools.clock.helpers.Config
+
+val Context.config: Config get() = Config.newInstance(applicationContext)

app/src/main/kotlin/com/simplemobiletools/clock/helpers/Config.kt

@@ -0,0 +1,10 @@
+package com.simplemobiletools.clock.helpers
+
+import android.content.Context
+import com.simplemobiletools.commons.helpers.BaseConfig
+
+class Config(context: Context) : BaseConfig(context) {
+    companion object {
+        fun newInstance(context: Context) = Config(context)
+    }
+}