Remove jcenter publishing tasks and migrate to maven

Author: skydoves

app/src/main/java/com/skydoves/colorpickerviewdemo/MainActivity.java

@@ -52,7 +52,7 @@ public class MainActivity extends AppCompatActivity {
   private boolean FLAG_SELECTOR = false;
 
   private PowerMenu powerMenu;
-  private OnMenuItemClickListener<PowerMenuItem> powerMenuItemClickListener =
+  private final OnMenuItemClickListener<PowerMenuItem> powerMenuItemClickListener =
       new OnMenuItemClickListener<PowerMenuItem>() {
         @Override
         public void onItemClick(int position, PowerMenuItem item) {

gradle.properties

@@ -1,4 +1,5 @@
-# Designed and developed by 2019 skydoves (Jaewoong Eum)
+#
+# Copyright 2017 skydoves (Jaewoong Eum)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -11,19 +12,43 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+#
+
+# Jvm environments
+org.gradle.jvmargs=-Xmx4g
 
-# Project-wide Gradle settings.
-# IDE (e.g. Android Studio) users:
-# Gradle settings configured through the IDE *will override*
-# any settings specified in this file.
-# For more details on how to configure your build environment visit
-# http://www.gradle.org/docs/current/userguide/build_environment.html
-# Specifies the JVM arguments used for the daemon process.
-# The setting is particularly useful for tweaking memory settings.
-android.enableJetifier=true
+# AndroidX
 android.useAndroidX=true
-org.gradle.jvmargs=-Xmx1536m
-# When configured, Gradle will run in incubating parallel mode.
-# This option should only be used with decoupled projects. More details, visit
-# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
-# org.gradle.parallel=true
+
+# Required to publish to Nexus
+systemProp.org.gradle.internal.publish.checksums.insecure=true
+
+# Increase timeout when pushing to Sonatype
+systemProp.org.gradle.internal.http.connectionTimeout=120000
+systemProp.org.gradle.internal.http.socketTimeout=120000
+
+# Maven
+GROUP=com.github.skydoves
+POM_PACKAGING=aar
+
+VERSION_NAME=2.2.3-SNAPSHOT
+
+POM_ARTIFACT_ID=colorpickerview
+POM_NAME=colorpickerview
+POM_DESCRIPTION=Android colorpicker for getting colors from any images by tapping on the desired color.
+
+POM_URL=https://github.com/skydoves/colorpickerview/
+POM_SCM_URL=https://github.com/skydoves/colorpickerview/
+POM_SCM_CONNECTION=scm:git:git://github.com/skydoves/colorpickerview.git
+POM_SCM_DEV_CONNECTION=scm:git:git://github.com/skydoves/colorpickerview.git
+
+POM_LICENCE_NAME=The Apache Software License, Version 2.0
+POM_LICENCE_URL=http://www.apache.org/licenses/LICENSE-2.0.txt
+POM_LICENCE_DIST=repo
+
+POM_DEVELOPER_ID=skydoves
+POM_DEVELOPER_NAME=Jaewoong Eum
+POM_DEVELOPER_URL=https://github.com/skydoves/
+
+RELEASE_REPOSITORY_URL=https://oss.sonatype.org/service/local/staging/deploy/maven2/
+SNAPSHOT_REPOSITORY_URL=https://oss.sonatype.org/content/repositories/snapshots/