Question

I have made a custom view that I’m setting inside the onCreate() method in the Main Activity.

Like this:

compassView = new CompassView(this);
setContentView(compassView);

My question is. How do I reference the view in xml, so I can put it inside a linearlayout together with other controls?

Answer 1

Assuming your CompassView is a class which is placed in the Package called ,

com.android.sample

Create a XML like this,

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

  <com.android.sample.CompassView 
       android:id="@+id/compassview"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"

      />
</LinearLayout>

And now as usual, setContentView(R.layout.xmlname); in your onCreate().

And compassView = (CompassView)findViewbyId(R.id.compassview);