Adding Custom VIew- Android

Question

I have following layout file. It has camera preview on half screen and button with it. I want to add a custom View which draws circle. I have done coding the class Custom View class. But now the problem is how/what to do in order to add my Custom view in layout and how to integrate that to my main class. I have not been able to get it properly working so far.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal"
android:baselineAligned="false">


<LinearLayout
    android:id="@+id/camera_preview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_weight="1"
    android:orientation="horizontal">
    <MyDrawing
        android:id="@+id/Drawing"
        android:layout_width="259dp"
        android:layout_height="fill_parent"
        android:orientation="horizontal"
        />

</LinearLayout>


<LinearLayout
    android:id="@+id/buttonsLayout"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="center"
    android:orientation="vertical"
    android:weightSum="1">

    <Button
        android:id="@+id/button_capture"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:layout_marginTop="100dp"
        android:text="Capture/Stop"
        />
</LinearLayout>

Answer 1

Change this :

<MyDrawing
        android:id="@+id/Drawing"
        android:layout_width="259dp"
        android:layout_height="fill_parent"
        android:orientation="horizontal"
        />

To:

<com.package.file.location.MyDrawing
        android:id="@+id/Drawing"
        android:layout_width="259dp"
        android:layout_height="fill_parent"
        android:orientation="horizontal"
        />

Always add complete path to the view