GLView is a widget intended to make incorporating 3D objects in your app as painless as possible, on the level of including 2D images with ImageView.

Some sample layout XML:

<com.github.wartman4404.glview.GLObjectView
 android:id="@+id/glview"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 app:light_ambient_intensity=".2"
 app:light_dir_x="-0.5"
 app:light_dir_y="-0.5"
 app:light_dir_z="0.0"
 app:light_directional_intensity=".5"
 app:src_material="@string/teapot_material"
 app:src_object="@string/teapot_object" />

And the corresponding code:

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    GLObjectView glview = (GLObjectView) findViewById(R.id.glview);
    glview.load();
}

That's all you need!