Question

my question is simple. I have class TouchSurfaceView which extends GLSurfaceView. I want create activity where will three TextViews and Button on bottom and TouchSurfaceView on top, but I don’t know how read this in XML layout.

Answer 1

You just reference it usingthe full name (including the package) as if it were any other Vew:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    >
    <your.package.TouchSurfaceView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />
     <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="text"
        />
<!-- etcetera -->
</LinearLayout>

You need a constructor that takes AttributeSet as parameter (is used when inflating the xml):

public TouchSurfaceView(Context context, AttributeSet attr) {
  super(context, attr);
  // the rest of your code
}