Updated libraries, added Kotlin to project - Issue #39

app/build.gradle

@@ -1,8 +1,9 @@
 apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
 apply plugin: 'io.fabric'
 
 ext {
-    supportLibraryVersion = "27.0.2"
+    supportLibraryVersion = "27.1.1"
 }
 
 android {
@@ -39,30 +40,40 @@ android {
     }
 }
 
+kotlin {
+    experimental {
+        coroutines 'enable'
+    }
+}
+
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 
+    // Kotlin
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:0.22.5'
+
     // Google & Android libraries
     implementation "com.android.support:support-v4:${supportLibraryVersion}"
     implementation "com.android.support:appcompat-v7:${supportLibraryVersion}"
     implementation "com.android.support:design:${supportLibraryVersion}"
     implementation "com.android.support:cardview-v7:${supportLibraryVersion}"
     implementation "com.android.support.constraint:constraint-layout:1.1.0-beta5"
-    withPlayServicesImplementation('com.crashlytics.sdk.android:crashlytics:2.9.0@aar') {
+    withPlayServicesImplementation('com.crashlytics.sdk.android:crashlytics:2.9.3@aar') {
         transitive = true
     }
-    withPlayServicesImplementation 'com.google.firebase:firebase-core:11.8.0'
-    withPlayServicesImplementation 'com.google.firebase:firebase-config:11.8.0'
+    withPlayServicesImplementation 'com.google.firebase:firebase-core:16.0.0'
+    withPlayServicesImplementation 'com.google.firebase:firebase-config:16.0.0'
 
     // Other libraries
-    implementation "com.squareup.retrofit2:retrofit:2.3.0"
-    implementation "com.squareup.retrofit2:converter-gson:2.3.0"
-    implementation 'com.jakewharton.timber:timber:4.6.1'
+    implementation "com.squareup.retrofit2:retrofit:2.4.0"
+    implementation "com.squareup.retrofit2:converter-gson:2.4.0"
+    implementation 'com.jakewharton.timber:timber:4.7.0'
 
     // Tests
     testImplementation "junit:junit:4.12"
-    androidTestImplementation "com.android.support.test:runner:1.0.1"
-    androidTestImplementation "com.android.support.test.espresso:espresso-core:3.0.1"
+    androidTestImplementation "com.android.support.test:runner:1.0.2"
+    androidTestImplementation "com.android.support.test.espresso:espresso-core:3.0.2"
 }
 
 apply plugin: 'com.google.gms.google-services'

build.gradle

@@ -1,6 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
+    ext.kotlin_version = "1.2.41"
     repositories {
         google()
         jcenter()
@@ -9,9 +10,10 @@ buildscript {
         }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
-        classpath 'com.google.gms:google-services:3.1.2'
-        classpath 'io.fabric.tools:gradle:1.24.4'
+        classpath 'com.android.tools.build:gradle:3.1.2'
+        classpath 'com.google.gms:google-services:3.3.1'
+        classpath 'io.fabric.tools:gradle:1.25.4'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sun Jan 07 16:14:43 CET 2018
+#Fri Jun 01 08:53:12 CEST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip