added signing information to build.gradle

build.gradle

@@ -1,10 +1,22 @@
 apply plugin: 'com.android.library'
 apply from: "./bintray.data.gradle"
 
+def keystorePropertiesFile = rootProject.file("keystore.properties")
+def keystoreProperties = new Properties()
+keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+
+
 android {
+    signingConfigs {
+        config {
+            keyAlias keystoreProperties['keyAlias']
+            keyPassword keystoreProperties['keyPassword']
+            storeFile file(keystoreProperties['storeFile'])
+            storePassword keystoreProperties['storePassword']
+        }
+    }
     compileSdkVersion 26
-    buildToolsVersion "26.0.1"
-
+    buildToolsVersion "26.0.2"
     defaultConfig {
         minSdkVersion 16
         targetSdkVersion 26
@@ -15,11 +27,14 @@ android {
 //            targetCompatibility JavaVersion.VERSION_1_8
 //        }
     }
-
     buildTypes {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
+            signingConfig signingConfigs.config
+        }
+        debug {
+            signingConfig signingConfigs.config
         }
     }
     lintOptions {
@@ -28,7 +43,7 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile fileTree(include: ['*.jar'], dir: 'libs')
 }
 
 task copyToLib(type: Copy) {