1 <menu xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:app="http://schemas.android.com/apk/res-auto"
 3     xmlns:tools="http://schemas.android.com/tools"
 4     tools:context=".MainActivity">
 5     <item
 6         android:id="@+id/action_search"
 7         android:orderInCategory="80"
 8         android:title="action_search"
 9         app:showAsAction="ifRoom"
10         android:icon="@drawable/search_ic_selector"/>
11 </menu>

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <android.support.v7.widget.Toolbar
 3     xmlns:android="http://schemas.android.com/apk/res/android"
 4     xmlns:app="http://schemas.android.com/apk/res-auto"
 5     android:id="@+id/common_toolbar_top"
 6     android:layout_width="match_parent"
 7     android:layout_height="wrap_content"
 8     android:background="@color/colorPrimary"
 9     android:minHeight="?attr/actionBarSize"
10     app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
11     app:navigationIcon="?attr/homeAsUpIndicator"
12     app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
13    >
14 </android.support.v7.widget.Toolbar>

<includelayout="@layout/common_toolbar">
</include>

1 Toolbar toolbar = (Toolbar) findViewById(R.id.common_toolbar_top);
2 setSupportActionBar(toolbar);

setTitle(R.string.fragment_for_why_title);

@Override
public boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {int id = item.getItemId();//noinspection SimplifiableIfStatementif (id == R.id.action_search) {return true;}return super.onOptionsItemSelected(item);
}