diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..39fb081
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,9 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..57889d5
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,28 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+ ext.kotlin_version = '1.2.0'
+ ext.kotlin_version = '1.1.51'
+ repositories {
+ google()
+ jcenter()
+ }
+ dependencies {
+ classpath 'com.android.tools.build:gradle:3.0.0'
+ classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+
+ // NOTE: Do not place your application dependencies here; they belong
+ // in the individual module build.gradle files
+ }
+}
+
+allprojects {
+ repositories {
+ google()
+ jcenter()
+ }
+}
+
+task clean(type: Delete) {
+ delete rootProject.buildDir
+}
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..cb05675
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,18 @@
+# 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.
+org.gradle.jvmargs=-Xmx1536m
+android.enableAapt2=false
+
+# 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
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..79e38dd
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Dec 06 16:23:31 EET 2017
+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/gradlew b/gradlew
new file mode 100644
index 0000000..9d82f78
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+## Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+ echo "$*"
+}
+
+die ( ) {
+ echo
+ echo "$*"
+ echo
+ exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+ CYGWIN* )
+ cygwin=true
+ ;;
+ Darwin* )
+ darwin=true
+ ;;
+ MINGW* )
+ msys=true
+ ;;
+esac
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+ ls=`ls -ld "$PRG"`
+ link=`expr "$ls" : '.*-> \(.*\)$'`
+ if expr "$link" : '/.*' > /dev/null; then
+ PRG="$link"
+ else
+ PRG=`dirname "$PRG"`"/$link"
+ fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD="$JAVA_HOME/jre/sh/java"
+ else
+ JAVACMD="$JAVA_HOME/bin/java"
+ fi
+ if [ ! -x "$JAVACMD" ] ; then
+ die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD="java"
+ which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+ MAX_FD_LIMIT=`ulimit -H -n`
+ if [ $? -eq 0 ] ; then
+ if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+ MAX_FD="$MAX_FD_LIMIT"
+ fi
+ ulimit -n $MAX_FD
+ if [ $? -ne 0 ] ; then
+ warn "Could not set maximum file descriptor limit: $MAX_FD"
+ fi
+ else
+ warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+ fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+ GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+ APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+ CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+ JAVACMD=`cygpath --unix "$JAVACMD"`
+
+ # We build the pattern for arguments to be converted via cygpath
+ ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+ SEP=""
+ for dir in $ROOTDIRSRAW ; do
+ ROOTDIRS="$ROOTDIRS$SEP$dir"
+ SEP="|"
+ done
+ OURCYGPATTERN="(^($ROOTDIRS))"
+ # Add a user-defined pattern to the cygpath arguments
+ if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+ OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+ fi
+ # Now convert the arguments - kludge to limit ourselves to /bin/sh
+ i=0
+ for arg in "$@" ; do
+ CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+ CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
+
+ if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
+ eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+ else
+ eval `echo args$i`="\"$arg\""
+ fi
+ i=$((i+1))
+ done
+ case $i in
+ (0) set -- ;;
+ (1) set -- "$args0" ;;
+ (2) set -- "$args0" "$args1" ;;
+ (3) set -- "$args0" "$args1" "$args2" ;;
+ (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+ (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+ (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+ (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+ (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+ (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+ esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+ JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..8a0b282
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/rollinglayoutmanagerkotlin/.gitignore b/rollinglayoutmanagerkotlin/.gitignore
new file mode 100644
index 0000000..796b96d
--- /dev/null
+++ b/rollinglayoutmanagerkotlin/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/rollinglayoutmanagerkotlin/build.gradle b/rollinglayoutmanagerkotlin/build.gradle
new file mode 100644
index 0000000..7b94afe
--- /dev/null
+++ b/rollinglayoutmanagerkotlin/build.gradle
@@ -0,0 +1,41 @@
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+
+android {
+ compileSdkVersion 26
+
+
+
+ defaultConfig {
+ minSdkVersion 16
+ targetSdkVersion 26
+ versionCode 1
+ versionName "1.0"
+ multiDexEnabled true
+
+ testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+
+ }
+
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+ }
+ }
+
+}
+def supportVersion = '26.1.0'
+dependencies {
+ implementation fileTree(dir: 'libs', include: ['*.jar'])
+ implementation "com.android.support:appcompat-v7:$supportVersion"
+ implementation "com.android.support:design:$supportVersion"
+
+ testImplementation 'junit:junit:4.12'
+ androidTestImplementation 'com.android.support.test:runner:1.0.1'
+ androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+ compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
+}
+repositories {
+ mavenCentral()
+}
diff --git a/rollinglayoutmanagerkotlin/proguard-rules.pro b/rollinglayoutmanagerkotlin/proguard-rules.pro
new file mode 100644
index 0000000..f1b4245
--- /dev/null
+++ b/rollinglayoutmanagerkotlin/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/rollinglayoutmanagerkotlin/src/androidTest/java/net/vrgsoft/rollinglayoutmanagerkotlin/ExampleInstrumentedTest.java b/rollinglayoutmanagerkotlin/src/androidTest/java/net/vrgsoft/rollinglayoutmanagerkotlin/ExampleInstrumentedTest.java
new file mode 100644
index 0000000..470b73e
--- /dev/null
+++ b/rollinglayoutmanagerkotlin/src/androidTest/java/net/vrgsoft/rollinglayoutmanagerkotlin/ExampleInstrumentedTest.java
@@ -0,0 +1,26 @@
+package net.vrgsoft.rollinglayoutmanagerkotlin;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see Testing documentation
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+ @Test
+ public void useAppContext() throws Exception {
+ // Context of the app under test.
+ Context appContext = InstrumentationRegistry.getTargetContext();
+
+ assertEquals("net.vrgsoft.rollinglayoutmanagerkotlin.test", appContext.getPackageName());
+ }
+}
diff --git a/rollinglayoutmanagerkotlin/src/main/AndroidManifest.xml b/rollinglayoutmanagerkotlin/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..1970d75
--- /dev/null
+++ b/rollinglayoutmanagerkotlin/src/main/AndroidManifest.xml
@@ -0,0 +1,2 @@
+
diff --git a/rollinglayoutmanagerkotlin/src/main/java/net/vrgsoft/rollinglayoutmanagerkotlin/RollingLayoutManager.kt b/rollinglayoutmanagerkotlin/src/main/java/net/vrgsoft/rollinglayoutmanagerkotlin/RollingLayoutManager.kt
new file mode 100644
index 0000000..b0f8645
--- /dev/null
+++ b/rollinglayoutmanagerkotlin/src/main/java/net/vrgsoft/rollinglayoutmanagerkotlin/RollingLayoutManager.kt
@@ -0,0 +1,80 @@
+package net.vrgsoft.rollinglayoutmanagerkotlin
+
+
+import android.content.Context
+import android.graphics.PointF
+import android.support.v7.widget.LinearLayoutManager
+import android.support.v7.widget.LinearSmoothScroller
+import android.support.v7.widget.RecyclerView
+import android.util.Log
+
+
+class RollingLayoutManager(context: Context) : LinearLayoutManager(context) {
+
+ override fun onLayoutChildren(recycler: RecyclerView.Recycler?, state: RecyclerView.State) {
+ updateViewScale()
+ super.onLayoutChildren(recycler, state)
+ }
+
+ private fun updateViewScale() {
+
+ val height = height.toFloat()
+ for (i in 0 until childCount) {
+ val view = getChildAt(i)
+ val childHeight = view.height
+ val rotationTresholdPersent = 1f - childHeight / height
+ val thresholdPx = (height * rotationTresholdPersent).toInt()
+ var scale: Float
+ val viewTop = getDecoratedTop(view)
+ if (viewTop >= thresholdPx) {
+ val delta = viewTop - thresholdPx
+ scale = (childHeight - delta) / childHeight.toFloat()
+ scale = Math.max(scale, 0f)
+ view.alpha = 0.1f + 0.9f * scale
+ view.pivotX = (view.width / 2).toFloat()
+ view.pivotY = (-view.height / 12).toFloat()
+ view.rotationX = -90 * (1 - scale)
+ } else {
+ view.rotationX = 0f
+ view.alpha = 1f
+ }
+ }
+ }
+
+ override fun smoothScrollToPosition(recyclerView: RecyclerView, state: RecyclerView.State?, position: Int) {
+ if (position >= itemCount) {
+ Log.e(TAG, "Cannot scroll to $position, item count is $itemCount")
+ return
+ }
+
+ val scroller = object : LinearSmoothScroller(recyclerView.context) {
+ override fun computeScrollVectorForPosition(targetPosition: Int): PointF? {
+ return this@RollingLayoutManager.computeScrollVectorForPosition(targetPosition)
+ }
+
+ override fun getVerticalSnapPreference(): Int {
+ return LinearSmoothScroller.SNAP_TO_START
+ }
+ }
+ scroller.targetPosition = position
+ startSmoothScroll(scroller)
+ }
+
+ override fun computeScrollVectorForPosition(targetPosition: Int): PointF? {
+ if (childCount == 0) {
+ return null
+ }
+ val firstChildPos = getPosition(getChildAt(0))
+ val direction = if (targetPosition < firstChildPos) -1 else 1
+ return PointF(0f, direction.toFloat())
+ }
+
+ override fun scrollVerticallyBy(dy: Int, recycler: RecyclerView.Recycler?, state: RecyclerView.State?): Int {
+ updateViewScale()
+ return super.scrollVerticallyBy(dy, recycler, state)
+ }
+
+ companion object {
+ private val TAG = "RollingLayoutManager"
+ }
+}
diff --git a/rollinglayoutmanagerkotlin/src/main/res/values/strings.xml b/rollinglayoutmanagerkotlin/src/main/res/values/strings.xml
new file mode 100644
index 0000000..7dc0c98
--- /dev/null
+++ b/rollinglayoutmanagerkotlin/src/main/res/values/strings.xml
@@ -0,0 +1,3 @@
+
+ RollingLayoutManagerKotlin
+
diff --git a/rollinglayoutmanagerkotlin/src/test/java/net/vrgsoft/rollinglayoutmanagerkotlin/ExampleUnitTest.java b/rollinglayoutmanagerkotlin/src/test/java/net/vrgsoft/rollinglayoutmanagerkotlin/ExampleUnitTest.java
new file mode 100644
index 0000000..302536f
--- /dev/null
+++ b/rollinglayoutmanagerkotlin/src/test/java/net/vrgsoft/rollinglayoutmanagerkotlin/ExampleUnitTest.java
@@ -0,0 +1,17 @@
+package net.vrgsoft.rollinglayoutmanagerkotlin;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see Testing documentation
+ */
+public class ExampleUnitTest {
+ @Test
+ public void addition_isCorrect() throws Exception {
+ assertEquals(4, 2 + 2);
+ }
+}
\ No newline at end of file
diff --git a/sample/.gitignore b/sample/.gitignore
new file mode 100644
index 0000000..796b96d
--- /dev/null
+++ b/sample/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/sample/build.gradle b/sample/build.gradle
new file mode 100644
index 0000000..7295553
--- /dev/null
+++ b/sample/build.gradle
@@ -0,0 +1,39 @@
+apply plugin: 'com.android.application'
+
+apply plugin: 'kotlin-android'
+
+apply plugin: 'kotlin-android-extensions'
+
+android {
+ compileSdkVersion 26
+ defaultConfig {
+ applicationId "net.vrgsoft.rollinglayoutmanagerkotlin"
+ minSdkVersion 16
+ targetSdkVersion 26
+ versionCode 1
+ versionName "1.0"
+ testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+ multiDexEnabled true
+ }
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+ }
+ }
+}
+
+def supportVersion = '26.1.0'
+dependencies {
+ implementation fileTree(dir: 'libs', include: ['*.jar'])
+ implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
+ implementation 'com.android.support:appcompat-v7:26.1.0'
+ implementation "com.android.support:appcompat-v7:$supportVersion"
+ implementation "com.android.support:cardview-v7:$supportVersion"
+
+ implementation "com.android.support:design:$supportVersion"
+ testImplementation 'junit:junit:4.12'
+ androidTestImplementation 'com.android.support.test:runner:1.0.1'
+ androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+ compile project(path: ':rollinglayoutmanagerkotlin')
+}
diff --git a/sample/proguard-rules.pro b/sample/proguard-rules.pro
new file mode 100644
index 0000000..f1b4245
--- /dev/null
+++ b/sample/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/sample/src/androidTest/java/net/vrgsoft/rollinglayoutmanagerkotlin/ExampleInstrumentedTest.kt b/sample/src/androidTest/java/net/vrgsoft/rollinglayoutmanagerkotlin/ExampleInstrumentedTest.kt
new file mode 100644
index 0000000..5736a68
--- /dev/null
+++ b/sample/src/androidTest/java/net/vrgsoft/rollinglayoutmanagerkotlin/ExampleInstrumentedTest.kt
@@ -0,0 +1,24 @@
+package net.vrgsoft.rollinglayoutmanagerkotlin
+
+import android.support.test.InstrumentationRegistry
+import android.support.test.runner.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+ @Test
+ fun useAppContext() {
+ // Context of the app under test.
+ val appContext = InstrumentationRegistry.getTargetContext()
+ assertEquals("net.vrgsoft.rollinglayoutmanagerkotlin", appContext.packageName)
+ }
+}
diff --git a/sample/src/main/AndroidManifest.xml b/sample/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..4b769c7
--- /dev/null
+++ b/sample/src/main/AndroidManifest.xml
@@ -0,0 +1,24 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/sample/src/main/java/net/vrgsoft/rollinglayoutmanagerkotlin/SampleActivity.kt b/sample/src/main/java/net/vrgsoft/rollinglayoutmanagerkotlin/SampleActivity.kt
new file mode 100644
index 0000000..b883744
--- /dev/null
+++ b/sample/src/main/java/net/vrgsoft/rollinglayoutmanagerkotlin/SampleActivity.kt
@@ -0,0 +1,38 @@
+package net.vrgsoft.rollinglayoutmanagerkotlin
+
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import android.support.v7.widget.RecyclerView
+import java.util.*
+
+
+
+
+class SampleActivity : AppCompatActivity() {
+
+
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+ setContentView(R.layout.activity_sample)
+
+ val recyclerView = findViewById(R.id.recycler_view)
+
+
+ val rollingLayoutManager = RollingLayoutManager(this)
+ val simpleAdapter = SimpleAdapter(createTestData(20))
+
+ recyclerView.setLayoutManager(rollingLayoutManager)
+ recyclerView.setAdapter(simpleAdapter)
+ }
+
+ private fun createTestData(count: Int): List {
+ val strings = ArrayList()
+ for (i in 0 until count) {
+ strings.add(UUID.randomUUID().toString())
+ }
+
+ return strings
+ }
+
+
+}
diff --git a/sample/src/main/java/net/vrgsoft/rollinglayoutmanagerkotlin/SimpleAdapter.kt b/sample/src/main/java/net/vrgsoft/rollinglayoutmanagerkotlin/SimpleAdapter.kt
new file mode 100644
index 0000000..d352d4d
--- /dev/null
+++ b/sample/src/main/java/net/vrgsoft/rollinglayoutmanagerkotlin/SimpleAdapter.kt
@@ -0,0 +1,43 @@
+package net.vrgsoft.rollinglayoutmanagerkotlin
+
+import android.support.v7.widget.RecyclerView
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+
+import java.util.ArrayList
+
+
+class SimpleAdapter @JvmOverloads constructor(private var mData: List? = ArrayList()) : RecyclerView.Adapter() {
+
+ fun setData(data: List) {
+ mData = data
+ }
+
+ override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): SimpleViewHolder {
+
+ val inflater = LayoutInflater.from(parent.context)
+ return SimpleViewHolder(inflater.inflate(R.layout.item_simple, parent, false))
+ }
+
+ override fun onBindViewHolder(holder: SimpleViewHolder, position: Int) {
+ holder.bind(mData!![position])
+ }
+
+ override fun getItemCount(): Int {
+ return mData!!.size
+ }
+
+ inner class SimpleViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+ private val mTextView: TextView
+
+ init {
+ mTextView = itemView.findViewById(R.id.title)
+ }
+
+ fun bind(data: String) {
+ mTextView.text = data
+ }
+ }
+}
diff --git a/sample/src/main/res/drawable-v24/ic_launcher_foreground.xml b/sample/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..c7bd21d
--- /dev/null
+++ b/sample/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,34 @@
+
+
+
+
+