[ADDED] [#17] Crashlytics library to the sample app.

Fixes #17

Author: hossain-khan

app/build.gradle

@@ -1,5 +1,7 @@
 apply plugin: 'com.android.application'
 
+apply plugin: 'io.fabric'
+
 apply plugin: 'kotlin-android'
 
 apply plugin: 'kotlin-android-extensions'
@@ -10,7 +12,7 @@ apply plugin: 'kotlin-kapt'
 android {
     compileSdkVersion rootProject.ext.androidCompileSdkVersion
     defaultConfig {
-        applicationId "com.hossainkhan.android.demo"
+        applicationId "com.hossainkhan.android.constraintlayout"
         minSdkVersion rootProject.ext.androidMinSdkVersion
         targetSdkVersion rootProject.ext.androidTargetSdkVersion
         versionCode 1
@@ -67,6 +69,14 @@ dependencies {
 
     implementation "com.jakewharton.timber:timber:$rootProject.timberLibraryVersion"
 
+    // Crashlytics
+    // https://firebase.google.com/docs/crashlytics/get-started
+    implementation "com.crashlytics.sdk.android:crashlytics:$rootProject.crashlyticsVersion"
+
+    // Firebase Core
+    // https://firebase.google.com/docs/android/setup
+    implementation "com.google.firebase:firebase-core:$rootProject.firebaseVersion"
+
     // Dagger
     // https://google.github.io/dagger/
     implementation "com.google.dagger:dagger:$rootProject.daggerVersion"
@@ -93,3 +103,7 @@ dependencies {
     })
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
 }
+
+// ADD THIS AT THE BOTTOM
+// https://firebase.google.com/docs/android/setup
+apply plugin: 'com.google.gms.google-services'

app/google-services.json

@@ -0,0 +1,44 @@
+{
+  "_____DEVELOPER_NOTE_____": "YOU MUST GENERATE YOUR OWN FIREBASE CONFIG AND DROP IT HERE.",
+  "________________________": "____________________________________________________________",
+  "project_info": {
+    "project_number": "123",
+    "firebase_url": "https://GENERATE-YOUR-CONFIG.firebaseio.com",
+    "project_id": "GENERATE-YOUR-CONFIG",
+    "storage_bucket": "GENERATE-YOUR-CONFIG.appspot.com"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:123:android:123",
+        "android_client_info": {
+          "package_name": "com.hossainkhan.android.constraintlayout"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "GENERATE-YOUR-CONFIG.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "GENERATE-YOUR-CONFIG"
+        }
+      ],
+      "services": {
+        "analytics_service": {
+          "status": 1
+        },
+        "appinvite_service": {
+          "status": 1,
+          "other_platform_oauth_client": []
+        },
+        "ads_service": {
+          "status": 2
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}

build.gradle

@@ -17,13 +17,30 @@ buildscript {
      */
     ext.androidGradleToolsVersion = '3.1.2'
 
+    /*
+     * Fabric/Firebase gradle tools version.
+     * https://firebase.google.com/docs/crashlytics/
+     */
+    ext.fabricGradleToolsVersion = '1.25.1'
+
+    /*
+     * Google play services plugin
+     * https://firebase.google.com/docs/android/setup
+     */
+    ext.googlePlayServicesToolsVersion = '3.3.1'
+
     repositories {
         google()
         jcenter()
+        maven {
+            url 'https://maven.fabric.io/public'
+        }
     }
     dependencies {
         classpath "com.android.tools.build:gradle:$androidGradleToolsVersion"
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
+        classpath "io.fabric.tools:gradle:$fabricGradleToolsVersion"
+        classpath "com.google.gms:google-services:$googlePlayServicesToolsVersion"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -63,6 +80,10 @@ ext {
     constraintLayoutVersion = '1.1.0'
     // https://developer.android.com/topic/libraries/architecture/adding-components
     archComponentVersion = '1.1.1'
+    // https://firebase.google.com/docs/android/setup
+    firebaseVersion = '15.0.2'
+    // https://firebase.google.com/docs/crashlytics/get-started
+    crashlyticsVersion = '2.9.2'
 
     // Unit test dependencies
     // --------------------------------------------------
@@ -79,7 +100,6 @@ ext {
     flashBarVersion = '1.0.1' // https://github.com/aritraroy/Flashbar/releases
 }
 
-
 //
 // Utility methods used in the build
 //