Docs: Changed custom_toast to toast_layout

<h2 id="CustomToastView">Creating a Custom Toast View</h2>

<p>If a simple text message isn't enough, you can create a customized layout for your

toast notification. To create a custom layout, define a View layout,

in XML or in your application code, and pass the root {@link android.view.View} object

to the {@link android.widget.Toast#setView(View)} method.</p>

<p>For example, you can create the layout for the toast visible in the screenshot to the right

with the following XML (saved as <em>toast_layout.xml</em>):</p>

<p>

  If a simple text message isn't enough, you can create a customized layout

  for your toast notification. To create a custom layout, define a View

  layout, in XML or in your application code, and pass the root {@link

  android.view.View} object to the {@link android.widget.Toast#setView(View)}

  method.

</p>

<p>

  For example, you can create the layout for the toast visible in the

  screenshot to the right with the following XML (saved as

  <em>layout/custom_toast.xml</em>):

</p>

<pre>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

              android:id="@+id/toast_layout_root"

              android:id="@+id/custom_toast_container"

              android:orientation="horizontal"

              android:layout_width="fill_parent"

              android:layout_height="fill_parent"

</LinearLayout>

</pre>

<p>Notice that the ID of the LinearLayout element is "toast_layout_root". You must use this

ID to inflate the layout from the XML, as shown here:</p>

<p>

  Notice that the ID of the LinearLayout element is "custom_toast_container".

  You must use this ID and the ID of the XML layout file "custom_toast" to

  inflate the layout, as shown here:

</p>

<pre>

LayoutInflater inflater = getLayoutInflater();

View layout = inflater.inflate(R.layout.custom_toast,

                               (ViewGroup) findViewById(R.id.toast_layout_root));

                (ViewGroup) findViewById(R.id.custom_toast_container));

TextView text = (TextView) layout.findViewById(R.id.text);

text.setText("This is a custom toast");