animator_selector.xml

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:state_enabled="true"
        android:state_pressed="true">
        <objectAnimator
            android:duration="@android:integer/config_shortAnimTime"
            android:propertyName="translationZ"
            android:valueFrom="@dimen/button_elevation"
            android:valueTo="@dimen/button_press_elevation"
            android:valueType="floatType" />
    </item>
    <item>
        <objectAnimator
            android:duration="@android:integer/config_shortAnimTime"
            android:propertyName="translationZ"
            android:valueFrom="@dimen/button_press_elevation"
            android:valueTo="@dimen/button_elevation"
            android:valueType="floatType" />
    </item>
</selector>

bools.xml

<resources>
    <bool name="fab_layout_alignParentBottom">true</bool>
    <bool name="fab_layout_alignParentRight">true</bool>
</resources>

build.txt

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.0.2"

    defaultConfig {
        applicationId "me.kalehv.app.stickies"
        minSdkVersion 16
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:21.0.0'
    compile 'com.android.support:cardview-v7:21.0.0'
    compile 'com.android.support:recyclerview-v7:21.0.0'
    compile 'com.android.support:palette-v7:21.0.0'
    compile 'com.android.support:support-v4:21.0.0'
}

colors.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>

    <color name="red_50">#fde0dc</color>
    <color name="red_100">#f9bdbb</color>
    <color name="red_200">#f69988</color>
    <color name="red_300">#f36c60</color>
    <color name="red_400">#e84e40</color>
    <color name="red_500">#e51c23</color>
    <color name="red_600">#dd191d</color>
    <color name="red_700">#d01716</color>
    <color name="red_800">#c41411</color>
    <color name="red_900">#b0120a</color>
    <color name="red_A100">#ff7997</color>
    <color name="red_A200">#ff5177</color>
    <color name="red_A400">#ff2d6f</color>
    <color name="red_A700">#e00032</color>

    <color name="pink_50">#fce4ec</color>
    <color name="pink_100">#f8bbd0</color>
    <color name="pink_200">#f48fb1</color>
    <color name="pink_300">#f06292</color>
    <color name="pink_400">#ec407a</color>
    <color name="pink_500">#e91e63</color>
    <color name="pink_600">#d81b60</color>
    <color name="pink_700">#c2185b</color>
    <color name="pink_800">#ad1457</color>
    <color name="pink_900">#880e4f</color>
    <color name="pink_A100">#ff80ab</color>
    <color name="pink_A200">#ff4081</color>
    <color name="pink_A400">#f50057</color>
    <color name="pink_A700">#c51162</color>

    <color name="purple_50">#f3e5f5</color>
    <color name="purple_100">#e1bee7</color>
    <color name="purple_200">#ce93d8</color>
    <color name="purple_300">#ba68c8</color>
    <color name="purple_400">#ab47bc</color>
    <color name="purple_500">#9c27b0</color>
    <color name="purple_600">#8e24aa</color>
    <color name="purple_700">#7b1fa2</color>
    <color name="purple_800">#6a1b9a</color>
    <color name="purple_900">#4a148c</color>
    <color name="purple_A100">#ea80fc</color>
    <color name="purple_A200">#e040fb</color>
    <color name="purple_A400">#d500f9</color>
    <color name="purple_A700">#aa00ff</color>

    <color name="dark_purple_50">#ede7f6</color>
    <color name="dark_purple_100">#d1c4e9</color>
    <color name="dark_purple_200">#b39ddb</color>
    <color name="dark_purple_300">#9575cd</color>
    <color name="dark_purple_400">#7e57c2</color>
    <color name="dark_purple_500">#673ab7</color>
    <color name="dark_purple_600">#5e35b1</color>
    <color name="dark_purple_700">#512da8</color>
    <color name="dark_purple_800">#4527a0</color>
    <color name="dark_purple_900">#311b92</color>
    <color name="dark_purple_A100">#b388ff</color>
    <color name="dark_purple_A200">#7c4dff</color>
    <color name="dark_purple_A400">#651fff</color>
    <color name="dark_purple_A700">#6200ea</color>

    <color name="indigo_50">#e8eaf6</color>
    <color name="indigo_100">#c5cae9</color>
    <color name="indigo_200">#9fa8da</color>
    <color name="indigo_300">#7986cb</color>
    <color name="indigo_400">#5c6bc0</color>
    <color name="indigo_500">#3f51b5</color>
    <color name="indigo_600">#3949ab</color>
    <color name="indigo_700">#303f9f</color>
    <color name="indigo_800">#283593</color>
    <color name="indigo_900">#1a237e</color>
    <color name="indigo_A100">#8c9eff</color>
    <color name="indigo_A200">#536dfe</color>
    <color name="indigo_A400">#3d5afe</color>
    <color name="indigo_A700">#304ffe</color>

    <color name="blue_50">#e7e9fd</color>
    <color name="blue_100">#d0d9ff</color>
    <color name="blue_200">#afbfff</color>
    <color name="blue_300">#91a7ff</color>
    <color name="blue_400">#738ffe</color>
    <color name="blue_500">#5677fc</color>
    <color name="blue_600">#4e6cef</color>
    <color name="blue_700">#455ede</color>
    <color name="blue_800">#3b50ce</color>
    <color name="blue_900">#2a36b1</color>
    <color name="blue_A100">#a6baff</color>
    <color name="blue_A200">#6889ff</color>
    <color name="blue_A400">#4d73ff</color>
    <color name="blue_A700">#4d69ff</color>

    <color name="light_blue_50">#e1f5fe</color>
    <color name="light_blue_100">#b3e5fc</color>
    <color name="light_blue_200">#81d4fa</color>
    <color name="light_blue_300">#4fc3f7</color>
    <color name="light_blue_400">#29b6f6</color>
    <color name="light_blue_500">#03a9f4</color>
    <color name="light_blue_600">#039be5</color>
    <color name="light_blue_700">#0288d1</color>
    <color name="light_blue_800">#0277bd</color>
    <color name="light_blue_900">#01579b</color>
    <color name="light_blue_A100">#80d8ff</color>
    <color name="light_blue_A200">#40c4ff</color>
    <color name="light_blue_A400">#00b0ff</color>
    <color name="light_blue_A700">#0091ea</color>

    <color name="cyan_50">#e0f7fa</color>
    <color name="cyan_100">#b2ebf2</color>
    <color name="cyan_200">#80deea</color>
    <color name="cyan_300">#4dd0e1</color>
    <color name="cyan_400">#26c6da</color>
    <color name="cyan_500">#00bcd4</color>
    <color name="cyan_600">#00acc1</color>
    <color name="cyan_700">#0097a7</color>
    <color name="cyan_800">#00838f</color>
    <color name="cyan_900">#006064</color>
    <color name="cyan_A100">#84ffff</color>
    <color name="cyan_A200">#18ffff</color>
    <color name="cyan_A400">#00e5ff</color>
    <color name="cyan_A700">#00b8d4</color>

    <color name="teal_50">#e0f2f1</color>
    <color name="teal_100">#b2dfdb</color>
    <color name="teal_200">#80cbc4</color>
    <color name="teal_300">#4db6ac</color>
    <color name="teal_400">#26a69a</color>
    <color name="teal_500">#009688</color>
    <color name="teal_600">#00897b</color>
    <color name="teal_700">#00796b</color>
    <color name="teal_800">#00695c</color>
    <color name="teal_900">#004d40</color>
    <color name="teal_A100">#a7ffeb</color>
    <color name="teal_A200">#64ffda</color>
    <color name="teal_A400">#1de9b6</color>
    <color name="teal_A700">#00bfa5</color>

    <color name="green_50">#d0f8ce</color>
    <color name="green_100">#a3e9a4</color>
    <color name="green_200">#72d572</color>
    <color name="green_300">#42bd41</color>
    <color name="green_400">#2baf2b</color>
    <color name="green_500">#259b24</color>
    <color name="green_600">#0a8f08</color>
    <color name="green_700">#0a7e07</color>
    <color name="green_800">#056f00</color>
    <color name="green_900">#0d5302</color>
    <color name="green_A100">#a2f78d</color>
    <color name="green_A200">#5af158</color>
    <color name="green_A400">#14e715</color>
    <color name="green_A700">#12c700</color>

    <color name="light_green_50">#f1f8e9</color>
    <color name="light_green_100">#dcedc8</color>
    <color name="light_green_200">#c5e1a5</color>
    <color name="light_green_300">#aed581</color>
    <color name="light_green_400">#9ccc65</color>
    <color name="light_green_500">#8bc34a</color>
    <color name="light_green_600">#7cb342</color>
    <color name="light_green_700">#689f38</color>
    <color name="light_green_800">#558b2f</color>
    <color name="light_green_900">#33691e</color>
    <color name="light_green_A100">#ccff90</color>
    <color name="light_green_A200">#b2ff59</color>
    <color name="light_green_A400">#76ff03</color>
    <color name="light_green_A700">#64dd17</color>

    <color name="lime_50">#f9fbe7</color>
    <color name="lime_100">#f0f4c3</color>
    <color name="lime_200">#e6ee9c</color>
    <color name="lime_300">#dce775</color>
    <color name="lime_400">#d4e157</color>
    <color name="lime_500">#cddc39</color>
    <color name="lime_600">#c0ca33</color>
    <color name="lime_700">#afb42b</color>
    <color name="lime_800">#9e9d24</color>
    <color name="lime_900">#827717</color>
    <color name="lime_A100">#f4ff81</color>
    <color name="lime_A200">#eeff41</color>
    <color name="lime_A400">#c6ff00</color>
    <color name="lime_A700">#aeea00</color>

    <color name="yellow_50">#fffde7</color>
    <color name="yellow_100">#fff9c4</color>
    <color name="yellow_200">#fff59d</color>
    <color name="yellow_300">#fff176</color>
    <color name="yellow_400">#ffee58</color>
    <color name="yellow_500">#ffeb3b</color>
    <color name="yellow_600">#fdd835</color>
    <color name="yellow_700">#fbc02d</color>
    <color name="yellow_800">#f9a825</color>
    <color name="yellow_900">#f57f17</color>
    <color name="yellow_A100">#ffff8d</color>
    <color name="yellow_A200">#ffff00</color>
    <color name="yellow_A400">#ffea00</color>
    <color name="yellow_A700">#ffd600</color>

    <color name="amber_50">#fff8e1</color>
    <color name="amber_100">#ffecb3</color>
    <color name="amber_200">#ffe082</color>
    <color name="amber_300">#ffd54f</color>
    <color name="amber_400">#ffca28</color>
    <color name="amber_500">#ffc107</color>
    <color name="amber_600">#ffb300</color>
    <color name="amber_700">#ffa000</color>
    <color name="amber_800">#ff8f00</color>
    <color name="amber_900">#ff6f00</color>
    <color name="amber_A100">#ffe57f</color>
    <color name="amber_A200">#ffd740</color>
    <color name="amber_A400">#ffc400</color>
    <color name="amber_A700">#ffab00</color>

    <color name="orange_50">#fff3e0</color>
    <color name="orange_100">#ffe0b2</color>
    <color name="orange_200">#ffcc80</color>
    <color name="orange_300">#ffb74d</color>
    <color name="orange_400">#ffa726</color>
    <color name="orange_500">#ff9800</color>
    <color name="orange_600">#fb8c00</color>
    <color name="orange_700">#f57c00</color>
    <color name="orange_800">#ef6c00</color>
    <color name="orange_900">#e65100</color>
    <color name="orange_A100">#ffd180</color>
    <color name="orange_A200">#ffab40</color>
    <color name="orange_A400">#ff9100</color>
    <color name="orange_A700">#ff6d00</color>

    <color name="deep_orange_50">#fbe9e7</color>
    <color name="deep_orange_100">#ffccbc</color>
    <color name="deep_orange_200">#ffab91</color>
    <color name="deep_orange_300">#ff8a65</color>
    <color name="deep_orange_400">#ff7043</color>
    <color name="deep_orange_500">#ff5722</color>
    <color name="deep_orange_600">#f4511e</color>
    <color name="deep_orange_700">#e64a19</color>
    <color name="deep_orange_800">#d84315</color>
    <color name="deep_orange_900">#bf360c</color>
    <color name="deep_orange_A100">#ff9e80</color>
    <color name="deep_orange_A200">#ff6e40</color>
    <color name="deep_orange_A400">#ff3d00</color>
    <color name="deep_orange_A700">#dd2c00</color>

    <color name="brown_50">#efebe9</color>
    <color name="brown_100">#d7ccc8</color>
    <color name="brown_200">#bcaaa4</color>
    <color name="brown_300">#a1887f</color>
    <color name="brown_400">#8d6e63</color>
    <color name="brown_500">#795548</color>
    <color name="brown_600">#6d4c41</color>
    <color name="brown_700">#5d4037</color>
    <color name="brown_800">#4e342e</color>
    <color name="brown_900">#3e2723</color>

    <color name="grey_50">#fafafa</color>
    <color name="grey_100">#f5f5f5</color>
    <color name="grey_200">#eeeeee</color>
    <color name="grey_300">#e0e0e0</color>
    <color name="grey_400">#bdbdbd</color>
    <color name="grey_500">#9e9e9e</color>
    <color name="grey_600">#757575</color>
    <color name="grey_700">#616161</color>
    <color name="grey_800">#424242</color>
    <color name="grey_900">#212121</color>
    <color name="grey_black_1000">#000000</color>
    <color name="grey_white_1000">#ffffff</color>

    <color name="blue_grey_50">#eceff1</color>
    <color name="blue_grey_100">#cfd8dc</color>
    <color name="blue_grey_200">#b0bec5</color>
    <color name="blue_grey_300">#90a4ae</color>
    <color name="blue_grey_400">#78909c</color>
    <color name="blue_grey_500">#607d8b</color>
    <color name="blue_grey_600">#546e7a</color>
    <color name="blue_grey_700">#455a64</color>
    <color name="blue_grey_800">#37474f</color>
    <color name="blue_grey_900">#263238</color>


    <!-- Colors for the app -->
    <!-- Colors for the app -->
    <color name="primary">@color/purple_500</color>
    <color name="primary_dark">@color/purple_700</color>
    <color name="accent">@color/light_blue_A200</color>
    <color name="tint">@color/grey_white_1000</color>
    <color name="grey_tint">@color/grey_500</color>

</resources>

dimens.xml

  <!--FAB-->
  <dimen name="fab_size">56dp</dimen>
  <dimen name="fab_marginRight">16dp</dimen>
  <dimen name="fab_marginBottom">16dp</dimen>
  <dimen name="fab_elevation">2dp</dimen>
  <dimen name="fab_press_elevation">4dp</dimen>
  <dimen name="button_elevation">2dp</dimen>
  <dimen name="button_press_elevation">4dp</dimen>
  <!--FAB-->

drawable-v21_ripple.xml

<!-- res/drawable/oval_ripple.xml -->
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
        android:color="?android:colorControlHighlight">
    <item>
        <shape android:shape="oval">
            <solid android:color="?android:colorAccent"/>
        </shape>
    </item>
</ripple>

layout__activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                xmlns:tools="http://schemas.android.com/tools"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:paddingLeft="@dimen/activity_horizontal_margin"
                android:paddingRight="@dimen/activity_horizontal_margin"
                android:paddingTop="@dimen/activity_vertical_margin"
                android:paddingBottom="@dimen/activity_vertical_margin"
                tools:context=".MainActivity">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/cardList"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MyWActivity"
        />

    <ImageButton
        android:id="@+id/fab"
        style="@style/AppTheme.FAB"
        android:contentDescription="@string/acc_add_new"/>

</RelativeLayout>

MainActivity.java

package me.kalehv.app.myapp;

import android.annotation.TargetApi;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.Outline;
import android.os.Build;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewOutlineProvider;
import android.widget.ImageButton;

public class MainActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initViews();
    }

    @Override
    public void onResume() {
        super.onResume();
    }

    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    private void initViews() {
        //FAB
        int size = getResources().getDimensionPixelSize(R.dimen.fab_size);
        ImageButton fab = (ImageButton) findViewById(R.id.fab);

        ViewOutlineProvider viewOutlineProvider = new ViewOutlineProvider() {
            @Override
            public void getOutline(View view, Outline outline) {
                // Or read size directly from the view's width/height
                int size = getResources().getDimensionPixelSize(R.dimen.fab_size);
                outline.setOval(0, 0, size, size);
            }
        };
        fab.setOutlineProvider(viewOutlineProvider);
    }
}

styles-v21.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="AppTheme" parent="android:Theme.Material.Light">
    </style>

    <style name="AppTheme.FAB" parent="AppTheme">
        <item name="android:layout_width">@dimen/fab_size</item>
        <item name="android:layout_height">@dimen/fab_size</item>
        <item name="android:layout_alignParentBottom">@bool/fab_layout_alignParentBottom</item>
        <item name="android:layout_alignParentRight">@bool/fab_layout_alignParentRight</item>
        <item name="android:gravity">bottom</item>
        <item name="android:layout_marginBottom">@dimen/fab_marginBottom</item>
        <item name="android:layout_marginRight">@dimen/fab_marginBottom</item>
        <item name="android:background">@drawable/ripple</item>
        <item name="android:elevation">@dimen/fab_elevation</item>
        <item name="android:src">@drawable/ic_action_new</item>
        <item name="android:stateListAnimator">@animator/selector</item>
        <item name="android:tint">@color/tint</item>
    </style>

</resources>

styles.xml

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light">
        <!-- Customize your theme here. -->
    </style>

    <style name="AppTheme.FAB" parent="AppTheme">
        <item name="android:layout_width">@dimen/fab_size</item>
        <item name="android:layout_height">@dimen/fab_size</item>
        <item name="android:layout_alignParentBottom">@bool/fab_layout_alignParentBottom</item>
        <item name="android:layout_alignParentRight">@bool/fab_layout_alignParentRight</item>
        <item name="android:gravity">bottom</item>
        <item name="android:layout_marginBottom">@dimen/fab_marginBottom</item>
        <item name="android:layout_marginRight">@dimen/fab_marginBottom</item>
        <item name="android:background">@drawable/ripple</item>
        <item name="android:src">@drawable/ic_action_new</item>
        <item name="android:tint">@color/tint</item>
    </style>

</resources>