Continue from Tutorial 103

package com.notarazi.myscrolling1;

import android.os.Bundle;

import android.support.design.widget.FloatingActionButton;

import android.support.design.widget.Snackbar;

import android.support.v7.app.AppCompatActivity;

import android.support.v7.widget.Toolbar;

import android.view.View;

import android.view.Menu;

import android.view.MenuItem;

public class ScrollingActivity extends AppCompatActivity {

   @Override

   protected void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.activity_scrolling);

       Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

       setSupportActionBar(toolbar);

       FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);

       fab.setOnClickListener(new View.OnClickListener() {

           @Override

           public void onClick(View view) {

               Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)

                       .setAction("Action", null).show();

           }

       });

   }

   @Override

   public boolean onCreateOptionsMenu(Menu menu) {

       // Inflate the menu; this adds items to the action bar if it is present.

       getMenuInflater().inflate(R.menu.menu_scrolling, menu);

       return true;

   }

   @Override

   public boolean onOptionsItemSelected(MenuItem item) {

       // Handle action bar item clicks here. The action bar will

       // automatically handle clicks on the Home/Up button, so long

       // as you specify a parent activity in AndroidManifest.xml.

       int id = item.getItemId();

       //noinspection SimplifiableIfStatement

       if (id == R.id.action_settings) {

           return true;

       }

       return super.onOptionsItemSelected(item);

   }

}

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

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"

   xmlns:app="http://schemas.android.com/apk/res-auto"

   xmlns:tools="http://schemas.android.com/tools"

   android:layout_width="match_parent"

   android:layout_height="match_parent"

   android:fitsSystemWindows="true"

   tools:context="com.notarazi.myscrolling1.ScrollingActivity">

   <android.support.design.widget.AppBarLayout

       android:id="@+id/app_bar"

       android:layout_width="match_parent"

       android:layout_height="@dimen/app_bar_height"

       android:fitsSystemWindows="true"

       android:theme="@style/AppTheme.AppBarOverlay">

       <android.support.design.widget.CollapsingToolbarLayout

           android:id="@+id/toolbar_layout"

           android:layout_width="match_parent"

           android:layout_height="match_parent"

           android:fitsSystemWindows="true"

           app:contentScrim="?attr/colorPrimary"

           app:layout_scrollFlags="scroll|exitUntilCollapsed">

           <android.support.v7.widget.Toolbar

               android:id="@+id/toolbar"

               android:layout_width="match_parent"

               android:layout_height="?attr/actionBarSize"

               app:layout_collapseMode="pin"

               app:popupTheme="@style/AppTheme.PopupOverlay" />

       </android.support.design.widget.CollapsingToolbarLayout>

   </android.support.design.widget.AppBarLayout>

   <include layout="@layout/content_scrolling" />

   <android.support.design.widget.FloatingActionButton

       android:id="@+id/fab"

       android:layout_width="wrap_content"

       android:layout_height="wrap_content"

       android:layout_margin="@dimen/fab_margin"

       android:src="@android:drawable/ic_dialog_email"

       app:layout_anchor="@id/app_bar"

       app:layout_anchorGravity="bottom|end" />

</android.support.design.widget.CoordinatorLayout>

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

<android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"

   xmlns:app="http://schemas.android.com/apk/res-auto"

   xmlns:tools="http://schemas.android.com/tools"

   android:layout_width="match_parent"

   android:layout_height="match_parent"

   app:layout_behavior="@string/appbar_scrolling_view_behavior"

   tools:context="com.notarazi.myscrolling1.ScrollingActivity"

   tools:showIn="@layout/activity_scrolling">

   <TextView

       android:layout_width="wrap_content"

       android:layout_height="wrap_content"

       android:layout_margin="@dimen/text_margin"

       android:text="@string/large_text" />

</android.support.v4.widget.NestedScrollView>