diff --git a/.gitignore b/.gitignore
index 95367758..2fecce14 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,7 +8,7 @@
 node_modules/
 npm-debug.log
 yarn-error.log
-  
+
 
 # Xcode
 #
@@ -29,7 +29,7 @@ DerivedData
 *.ipa
 *.xcuserstate
 project.xcworkspace
-      
+
 
 # Android/IntelliJ
 #
@@ -45,4 +45,5 @@ buck-out/
 *.keystore
 
 # Editor config
-.vscode
\ No newline at end of file
+.vscode 
+
diff --git a/android/build.gradle b/android/build.gradle
index fcabf848..889ebaa6 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,21 +1,5 @@
-
-buildscript {
-    repositories {
-        google()
-        jcenter()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.1'
-    }
-}
-
-def getExtOrDefault(name) {
-  return rootProject.ext.has(name) ? rootProject.ext.get(name) : project.properties['RNAsyncStorage_' + name]
-}
-
-def getExtOrIntegerDefault(name) {
-  return rootProject.ext.has(name) ? rootProject.ext.get(name) : (project.properties['RNAsyncStorage_' + name]).toInteger()
+def getExtOrDefault(name, defaultValue) {
+  return rootProject.ext.has(name) ? rootProject.ext.get(name) : defaultValue
 }
 
 // AsyncStorage has default size of 6MB.
@@ -37,12 +21,11 @@ def useDedicatedExecutor = rootProject.hasProperty('AsyncStorage_dedicatedExecut
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion getExtOrIntegerDefault('compileSdkVersion')
-    buildToolsVersion getExtOrDefault('buildToolsVersion')
+    compileSdkVersion getExtOrDefault('compileSdkVersion', 28)
 
     defaultConfig {
-        minSdkVersion getExtOrIntegerDefault('minSdkVersion')
-        targetSdkVersion getExtOrIntegerDefault('targetSdkVersion')
+        minSdkVersion getExtOrDefault('minSdkVersion', 16)
+        targetSdkVersion getExtOrDefault('targetSdkVersion', 28)
 
         buildConfigField "Long", "AsyncStorage_db_size", "${dbSizeInMB}L"
         buildConfigField("boolean", "AsyncStorage_useDedicatedExecutor", "${useDedicatedExecutor}")
@@ -50,6 +33,7 @@ android {
 }
 
 repositories {
+    google()
     mavenCentral()
 }
 
diff --git a/android/gradle.properties b/android/gradle.properties
deleted file mode 100644
index 109465ba..00000000
--- a/android/gradle.properties
+++ /dev/null
@@ -1,4 +0,0 @@
-RNAsyncStorage_compileSdkVersion=28
-RNAsyncStorage_buildToolsVersion=28.0.3
-RNAsyncStorage_targetSdkVersion=28
-RNAsyncStorage_minSdkVersion=19
\ No newline at end of file