Updated libs

build.gradle

@@ -3,9 +3,10 @@ buildscript {
     repositories {
         mavenCentral()
         google()
+        jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.3'
+        classpath 'com.android.tools.build:gradle:3.5.3'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -15,5 +16,7 @@ buildscript {
 allprojects {
     repositories {
         mavenCentral()
+        jcenter()
+        google()
     }
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Fri Aug 03 21:40:36 KST 2018
+#Sun Dec 29 15:05:17 CET 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip

library/build.gradle

@@ -1,14 +1,14 @@
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 21
+    compileSdkVersion 29
     buildToolsVersion '27.0.3'
 
     defaultConfig {
-        minSdkVersion 11
-        targetSdkVersion 21
+        minSdkVersion 19
+        targetSdkVersion 29
         versionCode 2
-        versionName "1.0.1"
+        versionName "1.0.2"
     }
     buildTypes {
         release {

sample/build.gradle

@@ -1,15 +1,15 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 21
+    compileSdkVersion 29
     buildToolsVersion '27.0.3'
 
     defaultConfig {
         applicationId "com.skyfishjy.ripplebackground.sample"
-        minSdkVersion 11
-        targetSdkVersion 21
+        minSdkVersion 19
+        targetSdkVersion 29
         versionCode 2
-        versionName "1.0.1"
+        versionName "1.0.2"
     }
     buildTypes {
         release {