Android-L: A little example of the new Toolbar view.

Toolbar.java

        Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar);
        
        //Title and subtitle
        toolbar.setTitle("MY toolbar");
        toolbar.setSubtitle("Subtitle");

        //Menu
        toolbar.inflateMenu(R.menu.toolbar_menu);

        toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
            @Override
            public boolean onMenuItemClick(MenuItem menuItem) {

                switch (menuItem.getItemId()){
                    case R.id.action_share:
                        Toast.makeText(ToolbarActivity.this,"Share",Toast.LENGTH_SHORT).show();
                        return true;
                }

                return false;
            }
        });
        
        //Navigation Icon
        toolbar.setNavigationIcon(R.drawable.ic_launcher);
        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(ToolbarActivity.this,"Navigation",Toast.LENGTH_SHORT).show();
            }
        });

toolbar_layout.xm

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="vertical"
              android:layout_width="match_parent"
              android:layout_height="match_parent">

    <Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="56dp">
    </Toolbar>
    
    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/gray"/>
        
</LinearLayout>

toolbar_menu.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context="example.gmariotti.it.test21.ToolbarActivity" >

    <item android:id="@+id/action_search"
          android:title="@string/action_search"
          android:icon="@drawable/ic_search"
          android:showAsAction="ifRoom" />

    <item android:id="@+id/action_share"
          android:title="@string/action_share"
          android:icon="@drawable/ic_share"
          android:showAsAction="ifRoom" />


    <item android:id="@+id/action_settings"
        android:title="@string/action_settings"
        android:orderInCategory="100"
        android:showAsAction="never" />
</menu>

@yelinaung You can use the new ToolBar for greater flexibility:
http://developer.android.com/reference/android/widget/Toolbar.html
http://developer.android.com/reference/android/support/v7/widget/Toolbar.html

@cforlife
android:navigationIcon

@siddharth96
http://antonioleiva.com/material-design-everywhere/

It would be good to show how navdrawer works too

@bamsbamx +1

HOW TO MAKE TOOLBAR TRANSPARENT

@balrampandey19

<style name="ToolbarTheme" parent="Theme.AppCompat">
    <item name="android:background">**your color**</item>
</style>

and then use it like this in layout

<Toolbar
        ...
        app:theme="@style/ToolbarTheme"/>

I am exploring the Toolbar. I don't find a way to define android.support.v7.widget.Toolbar using XML completely. What I mean by this is that the toolbar components such as title, subtitle need to added through code but not using XML. Is there a way to add these components using XML? If not, why toolbar is designed like this?

very good bro