library created

.gitignore

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+# Created by .ignore support plugin (hsz.mobi)
+### Android template
+# Built application files
+*.apk
+*.ap_
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# IntelliJ
+*.iml
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/gradle.xml
+.idea/dictionaries
+.idea/libraries
+.idea/modules.xml
+app/build
+# Keystore files
+# Uncomment the following line if you do not want to check your keystore files in.
+#*.jks
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+
+# Google Services (e.g. APIs or Firebase)
+google-services.json
+
+# Freeline
+freeline.py
+freeline/
+freeline_project_description.json
+### Kotlin template
+# Compiled class file
+
+# Log file
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.war
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# CMake
+cmake-build-debug/
+
+
+## File-based project format:
+*.iws
+
+## Plugin-specific files:
+
+# IntelliJ
+
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+vcs.xml
+
+workspace.xml
+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff:
+
+# Sensitive or high-churn files:
+
+# Gradle:
+
+# CMake
+cmake-build-release/
+
+# Mongo Explorer plugin:
+
+## File-based project format:
+
+## Plugin-specific files:
+
+# IntelliJ
+
+# mpeltonen/sbt-idea plugin
+
+# JIRA plugin
+
+# Cursive Clojure plugin
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+### Android template
+# Built application files
+
+# Files for the ART/Dalvik VM
+
+# Java class files
+
+# Generated files
+
+# Gradle files
+
+# Local configuration file (sdk path, etc)
+
+# Proguard folder generated by Eclipse
+
+# Log Files
+
+# Android Studio Navigation editor temp files
+
+# Android Studio captures folder
+
+# IntelliJ
+
+# Keystore files
+# Uncomment the following line if you do not want to check your keystore files in.
+#*.jks
+
+# External native build folder generated in Android Studio 2.2 and later
+
+# Google Services (e.g. APIs or Firebase)
+
+# Freeline
+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff:
+
+# Sensitive or high-churn files:
+
+# Gradle:
+
+# CMake
+
+# Mongo Explorer plugin:
+
+## File-based project format:
+
+## Plugin-specific files:
+
+# IntelliJ
+
+# mpeltonen/sbt-idea plugin
+
+# JIRA plugin
+
+# Cursive Clojure plugin
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+### Android template
+# Built application files
+
+# Files for the ART/Dalvik VM
+
+# Java class files
+
+# Generated files
+
+# Gradle files
+
+# Local configuration file (sdk path, etc)
+
+# Proguard folder generated by Eclipse
+
+# Log Files
+
+# Android Studio Navigation editor temp files
+
+# Android Studio captures folder
+
+# IntelliJ
+
+# Keystore files
+# Uncomment the following line if you do not want to check your keystore files in.
+#*.jks
+
+# External native build folder generated in Android Studio 2.2 and later
+
+# Google Services (e.g. APIs or Firebase)
+
+.idea

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "com.kodmap.app.kmrecyclerviewstickyheader"
+        minSdkVersion 16
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(include: ['*.jar'], dir: 'libs')
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.android.support:recyclerview-v7:28.0.0'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+    implementation project(':kmrecyclerviewstickyheader')
+}

app/proguard-rules.pro

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+# 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

app/src/androidTest/java/com/kodmap/app/kmrecyclerviewstickyheader/ExampleInstrumentedTest.java

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+package com.kodmap.app.kmrecyclerviewstickyheader;
+
+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 <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.kodmap.app.kmrecyclerviewstickyheader", appContext.getPackageName());
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.kodmap.app.kmrecyclerviewstickyheader">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/kodmap/app/kmrecyclerviewstickyheader/ItemType.java

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+package com.kodmap.app.kmrecyclerviewstickyheader;
+
+public class ItemType {
+    public static final Integer Post = 1;
+    public static final Integer Header = 2;
+}

app/src/main/java/com/kodmap/app/kmrecyclerviewstickyheader/MainActivity.java

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+package com.kodmap.app.kmrecyclerviewstickyheader;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+
+
+import com.kodmap.library.kmrecyclerviewstickyheader.KmHeaderItemDecoration;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MainActivity extends AppCompatActivity {
+
+    private RecyclerViewAdapter adapter;
+    private RecyclerView recyclerView;
+    private LinearLayoutManager layoutManager;
+    private KmHeaderItemDecoration kmHeaderItemDecoration;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        initAdapter();
+        initData();
+    }
+
+    private void initAdapter() {
+        adapter = new RecyclerViewAdapter();
+        layoutManager = new LinearLayoutManager(this);
+        recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
+        recyclerView.setLayoutManager(layoutManager);
+        kmHeaderItemDecoration = new KmHeaderItemDecoration(adapter);
+        recyclerView.setAdapter(adapter);
+    }
+
+    private void initData() {
+        List<Model> modelList = new ArrayList<>();
+        for (Integer i = 1; i < 10; i++) {
+            Model headerModel = new Model("Header " + i, ItemType.Header);
+            modelList.add(headerModel);
+            for (Integer j = 1; j < 8; j++) {
+                Model model = new Model("Post " + i + " " + j, ItemType.Post);
+                modelList.add(model);
+            }
+        }
+        adapter.submitList(modelList);
+    }
+}