add firebase crashlytics (#5)

README.md

@@ -14,6 +14,7 @@ OCR Android App using tesseract
 ## Libraries
 - [android-image-cropper](https://github.com/ArthurHub/Android-Image-Cropper): for image cropping.
 - [tess-two](https://github.com/rmtheis/tess-two): to recognize text (tesseract) and binarize (leptonica).
+- [firebase](https://firebase.google.com/docs/android/setup): to report metrics (for development purpose, you can [remove firebase dependencies](https://github.com/testica/text-scanner/pull/5) or add your own google-services.json).
 
 ## Support
 - Android 4.0 +

app/build.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'com.android.application'
+apply plugin: 'io.fabric'
 
 android {
     compileSdkVersion 26
@@ -25,6 +26,10 @@ dependencies {
     implementation 'junit:junit:4.12'
     implementation 'com.android.support:appcompat-v7:26.1.0'
     implementation 'com.android.support:design:26.1.0'
+    implementation 'com.google.firebase:firebase-core:16.0.1'
+    implementation 'com.crashlytics.sdk.android:crashlytics:2.9.4'
     implementation 'com.rmtheis:tess-two:6.0.4'
     implementation 'com.theartofdev.edmodo:android-image-cropper:2.3.1'
 }
+
+apply plugin: 'com.google.gms.google-services'

build.gradle

@@ -4,9 +4,14 @@ buildscript {
     repositories {
         jcenter()
         google()
+        maven {
+            url 'https://maven.fabric.io/public'
+        }
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.1.4'
+        classpath 'com.google.gms:google-services:3.2.0'
+        classpath 'io.fabric.tools:gradle:1.25.2'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -17,6 +22,9 @@ allprojects {
     repositories {
         jcenter()
         google()
+        maven {
+            url 'https://maven.google.com/'
+        }
     }
 }