How to add Search bar with edit text in toolbar

as my understanding I hope this code can help you...

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:elevation="10dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/gray_500"
        android:orientation="vertical"
        android:gravity="center|right">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1"
            android:background="@color/white"
            android:orientation="horizontal"
            android:gravity="center|right">
            <TextView
                android:layout_width="0dp"
                android:layout_height="60dp"
                android:layout_weight="8"
                android:layout_margin="5dp"
                android:text="snap deal"
                android:gravity="center" >
            </TextView>

            <TextView
                android:layout_width="0dp"
                android:layout_height="60dp"
                android:layout_weight="2"
                android:layout_margin="5dp"
                android:ems="10"
                android:text="Img"
                android:gravity="center" >
            </TextView>


        </LinearLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1"
            android:background="@color/white"
            android:gravity="center|right">

            <EditText
                android:id="@+id/editMobileNo"
                android:layout_width="match_parent"
                android:layout_height="40dp"
                android:layout_margin="5dp"
                android:background="@drawable/login_edittext"
                android:ems="10"
                android:hint="Find your dil ki deal"
                android:drawableLeft="@drawable/search"
                android:gravity="center" >
            </EditText>

        </LinearLayout>

    </LinearLayout>

</android.support.v7.widget.Toolbar>

this is custom shape for EditText login_edittext.xml

 <?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape>
            <gradient 
                android:angle="270"
                android:endColor="@color/white"
                android:startColor="@color/white" />
            <stroke 
                android:width="1dp"
                android:color="@color/gray_500" />
            <corners 
                android:radius="1dp" />
            <padding 
                android:bottom="10dp" 
                android:left="10dp" 
                android:right="10dp" 
                android:top="10dp" />
        </shape>
    </item>

</selector>

this is just sketch... you need to change back color ,size ,image etc.....

Just add an edit text as part of your toolbar, something like this:

<android.support.v7.widget.Toolbar
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/primaryColor"
    android:elevation="4dp">

    <EditText
        android:id="@+id/searchEditText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        />

</android.support.v7.widget.Toolbar>

I believe the view you are looking for is a SearchView. You can define on your menu.xml that you want to add it to your ActionBar/ToolBar. Like this:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <item
        android:id="@+id/search"
        android:icon="@drawable/search_icon"
        android:title="@string/search"
        app:actionViewClass="android.support.v7.widget.SearchView"
        app:showAsAction="always" />

</menu>

Back on your Activity or Fragment you can manipulate the search view behavior and looks:

@Override
public void onPrepareOptionsMenu(Menu menu) {
    super.onPrepareOptionsMenu(menu);
    MenuItem searchViewMenuItem = menu.findItem(R.id.search);
    searchView = (SearchView) searchViewMenuItem.getActionView();
    ImageView v = (ImageView) searchView.findViewById(android.support.v7.appcompat.R.id.search_button);
    v.setImageResource(R.drawable.search_icon); //Changing the image

    if (!searchFor.isEmpty()) {
        searchView.setIconified(false);
        searchView.setQuery(searchFor, false);
    }

    searchView.setQueryHint(getResources().getString(R.string.search_hint));
    searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
        @Override
        public boolean onQueryTextSubmit(String query) {
          //Do your search
        }

        @Override
        public boolean onQueryTextChange(String newText) {
            if(newText.isEmpty()) clearSearch();
            return false;
        }
    });
}

That is a simpler way to do it. The most advised way is to actually have an activity to respond to your search intents. For more info on that behalf visit: http://developer.android.com/intl/pt-br/guide/topics/search/search-dialog.html