全画面表示のソフト作るのはこんだけ。

| os layout |

layout :=
'<?xml
version="1.0"
encoding="utf-8"?>

<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android";
android:id = "@+id/BackGround"
android:orientation = "vertical"
android:layout_width = "match_parent"
android:layout_height = "match_parent"
android:background= "#ff000000">

<Button
android:id = "@+id/Hello"
android:layout_width = "wrap_content"
android:layout_height = "wrap_content"
android:text = "Hello"
>
</Button>

</LinearLayout>
'.

PackageLoader fileInPackage: 'Android'.

os := Android new.
os fullShow: layout.