diff --git a/app/build.gradle b/app/build.gradle
index 2919b56..f693ea2 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -3,13 +3,13 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion "26.0.2"
+    compileSdkVersion 27
+    buildToolsVersion "27.0.1"
 
     defaultConfig {
         applicationId "com.simplemobiletools.flashlight"
         minSdkVersion 16
-        targetSdkVersion 26
+        targetSdkVersion 27
         versionCode 23
         versionName "2.0.0"
     }
@@ -37,24 +37,11 @@ android {
 }
 
 dependencies {
-    compile 'com.simplemobiletools:commons:2.35.7'
-    compile 'com.squareup:otto:1.3.8'
-    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    implementation 'com.simplemobiletools:commons:3.0.3'
+    implementation 'com.squareup:otto:1.3.8'
 }
 
-buildscript {
-    ext.kotlin_version = '1.1.51'
-    repositories {
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath "org.jetbrains.kotlin:kotlin-android-extensions:$kotlin_version"
-    }
-}
-
-def Properties props = new Properties()
+Properties props = new Properties()
 def propFile = new File('signing.properties')
 if (propFile.canRead()) {
     props.load(new FileInputStream(propFile))
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 452fd54..6648322 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -2,7 +2,8 @@
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
-    package="com.simplemobiletools.flashlight">
+    package="com.simplemobiletools.flashlight"
+    android:installLocation="auto">
 
     <uses-permission android:name="android.permission.CAMERA"/>
     <uses-permission android:name="android.permission.FLASHLIGHT"/>
diff --git a/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/SplashActivity.kt b/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/SplashActivity.kt
index a2dd423..4ba4513 100644
--- a/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/SplashActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/SplashActivity.kt
@@ -1,12 +1,10 @@
 package com.simplemobiletools.flashlight.activities
 
 import android.content.Intent
-import android.os.Bundle
-import android.support.v7.app.AppCompatActivity
+import com.simplemobiletools.commons.activities.BaseSplashActivity
 
-class SplashActivity : AppCompatActivity() {
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
+class SplashActivity : BaseSplashActivity() {
+    override fun initActivity() {
         startActivity(Intent(this, MainActivity::class.java))
         finish()
     }
diff --git a/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/WidgetConfigureActivity.kt b/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/WidgetConfigureActivity.kt
index 95dd333..e739f17 100644
--- a/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/WidgetConfigureActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/flashlight/activities/WidgetConfigureActivity.kt
@@ -6,7 +6,6 @@ import android.content.Intent
 import android.graphics.Color
 import android.graphics.PorterDuff
 import android.os.Bundle
-import android.support.v7.app.AppCompatActivity
 import android.widget.SeekBar
 import com.simplemobiletools.commons.dialogs.ColorPickerDialog
 import com.simplemobiletools.commons.extensions.adjustAlpha
@@ -15,13 +14,14 @@ import com.simplemobiletools.flashlight.extensions.config
 import com.simplemobiletools.flashlight.helpers.MyWidgetProvider
 import kotlinx.android.synthetic.main.widget_config.*
 
-class WidgetConfigureActivity : AppCompatActivity() {
+class WidgetConfigureActivity : SimpleActivity() {
     private var mWidgetAlpha = 0f
     private var mWidgetId = 0
     private var mWidgetColor = 0
     private var mWidgetColorWithoutTransparency = 0
 
     public override fun onCreate(savedInstanceState: Bundle?) {
+        useDynamicTheme = false
         super.onCreate(savedInstanceState)
         setResult(Activity.RESULT_CANCELED)
         setContentView(R.layout.widget_config)
diff --git a/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/MarshmallowCamera.kt b/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/MarshmallowCamera.kt
index a4bb352..5d35921 100644
--- a/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/MarshmallowCamera.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/MarshmallowCamera.kt
@@ -17,7 +17,7 @@ internal class MarshmallowCamera constructor(val context: Context) {
 
     init {
         try {
-            cameraId = manager.cameraIdList[0]
+            cameraId = manager.cameraIdList[0] ?: "0"
         } catch (ignored: CameraAccessException) {
         }
     }
diff --git a/build.gradle b/build.gradle
index 8c22f11..89e92a1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,11 +1,16 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
+    ext.kotlin_version = '1.2.0'
+
     repositories {
         jcenter()
+        google()
     }
+
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.0'
+        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -15,8 +20,8 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        google()
         maven { url "https://jitpack.io" }
-        maven { url "https://maven.google.com" }
     }
 }