Fragment on android

下面是Fragment 的sample....  繼承於Fragment .....

覆寫了 onCreateView()

public class MyFragment extends Fragment {

    @Override

    public View onCreateView(LayoutInflater inflater, ViewGroup container,

                             Bundle savedInstanceState) {

        super.onCreateView(inflater, container, savedInstanceState);

        View view = inflater.inflate(R.layout.my_fragment, container, false);

        TextView textView = (TextView) view.findViewById(R.id.textView);

        String title = getArguments().getString("title");

        textView.setText(title);

        return view;

    }

}

在Mainactivity.java 裡面....  呼叫  getFragmentManager() 得到 manager 

public void onAddClick(View view) {

        FragmentManager manager = getFragmentManager();

        FragmentTransaction transaction = manager.beginTransaction();

        Fragment fragment = manager.findFragmentById(R.id.frameLayout);

        if (fragment == null) {

            String title = "Fragment A";

            MyFragment fragmentA = new MyFragment();

            Bundle bundle = new Bundle();

            bundle.putString("title", title);

            fragmentA.setArguments(bundle);

            transaction.add(R.id.frameLayout, fragmentA, TAG);

            transaction.commit();

        } else {

            showToast("fragment exists");

        }

    }