Merge pull request #28 from Instabug/feature/generalizedGradle

🎨 generalize build.gradle to allow the use of the root project's config

Author: salmamali

android/build.gradle

@@ -1,13 +1,17 @@
 
 apply plugin: 'com.android.library'
 
+def DEFAULT_COMPILE_SDK_VERSION = 26
+def DEFAULT_BUILD_TOOLS_VERSION = "26.0.2"
+def DEFAULT_TARGET_SDK_VERSION = 26
+
 android {
-    compileSdkVersion 26
-    buildToolsVersion "26.0.2"
+    compileSdkVersion rootProject.hasProperty('compileSdkVersion') ? rootProject.compileSdkVersion : DEFAULT_COMPILE_SDK_VERSION
+    buildToolsVersion rootProject.hasProperty('buildToolsVersion') ? rootProject.buildToolsVersion : DEFAULT_BUILD_TOOLS_VERSION
 
     defaultConfig {
         minSdkVersion 16
-        targetSdkVersion 26
+        targetSdkVersion rootProject.hasProperty('targetSdkVersion') ? rootProject.targetSdkVersion : DEFAULT_TARGET_SDK_VERSION
         versionCode 1
         versionName "1.0"
         ndk {