Actionbar Tutorials Part 04----Custom View in The ActionBar

screenshots:

activity_main.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.ram.customviewintheactionbar.MainActivity"
    tools:ignore="MergeRootFrame" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World"
        android:textAppearance="?android:attr/textAppearanceLarge" />

</LinearLayout>

customview.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/RelativeLayout1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="CustomView"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:textColor="#ff0000" />

    <Button
        android:id="@+id/button_clickHere"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:text="Click here" />

</RelativeLayout>

MainActivity.java:
package com.ram.customviewintheactionbar;

import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

@SuppressLint("NewApi")
public class MainActivity extends ActionBarActivity {

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

        android.support.v7.app.ActionBar actionBar = getSupportActionBar();

        actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);

        LayoutInflater inflater = getLayoutInflater();

        View v = inflater.inflate(R.layout.customview, null);

        actionBar.setCustomView(v);

        Button clickHereButton = (Button) v.findViewById(R.id.button_clickHere);
        clickHereButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                Toast.makeText(getApplicationContext(),
                        "click Here button is working", Toast.LENGTH_LONG)
                        .show();
            }
        });

    }

}