diff --git a/.gitignore b/.gitignore
index e5a6801..6c131b6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,32 +1,3 @@
-# Built application files
-*.apk
-*.ap_
-
-# Files for the Dalvik VM
-*.dex
-
-# Java class files
-*.class
-
-# Generated files
-bin/
-gen/
-
-# Gradle files
-.gradle/
-build/
-/*/build/
-
-# Local configuration file (sdk path, etc)
-local.properties
-
-# Proguard folder generated by Eclipse
-proguard/
-
-# Log Files
-*.log
-
-
 # built application files
 *.apk
 *.ap_
@@ -44,8 +15,6 @@ gen/
 build/
 /build
 
-.gradle
-
 # Local configuration file (sdk path, etc)
 local.properties
 /local.properties
@@ -70,18 +39,15 @@ local.properties
 /.idea/inspectionProfiles/
 /.idea/runConfigurations.xml
 
-.gradle
 /local.properties
 /.idea/workspace.xml
 /.idea/libraries
 .DS_Store
 /build
 
-*.iml
+.gradle
 
-# Gradle
-.gradle/
-gradle/
+*.iml
 
 .bundle/
 vendor/
@@ -118,4 +84,4 @@ fastlane/screenshots/screenshots.html
 
 # scan temporary files
 fastlane/test_output
-# End of https://www.gitignore.io/api/fastlane
+# End of https://www.gitignore.io/api/fastlane
\ No newline at end of file
diff --git a/demo/.gitignore b/demo/.gitignore
index e7c6924..6c131b6 100644
--- a/demo/.gitignore
+++ b/demo/.gitignore
@@ -15,8 +15,6 @@ gen/
 build/
 /build
 
-.gradle
-
 # Local configuration file (sdk path, etc)
 local.properties
 /local.properties
@@ -41,18 +39,15 @@ local.properties
 /.idea/inspectionProfiles/
 /.idea/runConfigurations.xml
 
-.gradle
 /local.properties
 /.idea/workspace.xml
 /.idea/libraries
 .DS_Store
 /build
 
-*.iml
+.gradle
 
-# Gradle
-.gradle/
-gradle/
+*.iml
 
 .bundle/
 vendor/
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..13372ae
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..45e891d
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Tue Mar 13 01:03:20 BRT 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/library/.gitignore b/library/.gitignore
index e7c6924..6c131b6 100644
--- a/library/.gitignore
+++ b/library/.gitignore
@@ -15,8 +15,6 @@ gen/
 build/
 /build
 
-.gradle
-
 # Local configuration file (sdk path, etc)
 local.properties
 /local.properties
@@ -41,18 +39,15 @@ local.properties
 /.idea/inspectionProfiles/
 /.idea/runConfigurations.xml
 
-.gradle
 /local.properties
 /.idea/workspace.xml
 /.idea/libraries
 .DS_Store
 /build
 
-*.iml
+.gradle
 
-# Gradle
-.gradle/
-gradle/
+*.iml
 
 .bundle/
 vendor/