diff --git a/android/build.gradle b/android/build.gradle
index 849e79a..2614c62 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,36 +1,26 @@
+apply plugin: 'com.android.library'
 
-buildscript {
-    repositories {
-        jcenter()
-    }
+def _ext = rootProject.ext
 
-    dependencies {
-        classpath 'com.android.tools.build:gradle:1.3.1'
-    }
-}
-
-apply plugin: 'com.android.library'
+def _compileSdkVersion = _ext.has('compileSdkVersion') ? _ext.compileSdkVersion : 26
+def _buildToolsVersion = _ext.has('buildToolsVersion') ? _ext.buildToolsVersion : '26.0.3'
+def _minSdkVersion = _ext.has('minSdkVersion') ? _ext.minSdkVersion : 16
+def _targetSdkVersion = _ext.has('targetSdkVersion') ? _ext.targetSdkVersion : 26
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion "26.0.3"
+  compileSdkVersion _compileSdkVersion
+  buildToolsVersion _buildToolsVersion
 
-    defaultConfig {
-        minSdkVersion 16
-        targetSdkVersion 22
-        versionCode 1
-        versionName "1.0"
-    }
-    lintOptions {
-        abortOnError false
-    }
-}
+  defaultConfig {
+    minSdkVersion _minSdkVersion
+    targetSdkVersion _targetSdkVersion
+  }
 
-repositories {
-    mavenCentral()
+  lintOptions {
+    abortOnError false
+  }
 }
 
 dependencies {
-    compile 'com.facebook.react:react-native:+'
+  compile "com.facebook.react:react-native:+" // From node_modules
 }
-  
\ No newline at end of file