Thit k giao din trn Android

Thit k giao din trn AndroidMultiUniTrn V Tt BnhTng quanTrong Android, dng Activity hin th mn hnh.Mi activity s cha cc View theo dng cu trc cy, ngha l mt Layout gc cha cc view/layout con bn trong hoc ch c 1 view duy nht. (lu Layout cng l mt view nh)C th thit k giao din trong code java hoc trong file xml trong th mc layout.Tree view

Layout mu ca helloworld