【FragmentActivity】的简单实例

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一、FragmentActivity类

public class DemoFragmentActivity_2 extends FragmentActivity{private ViewPager pager;@Overrideprotected void onCreate(Bundle arg0) {super.onCreate(arg0);setContentView(R.layout.demo_activity_fragment_2);pager = (ViewPager) findViewById(R.id.pager_fragment);pager.setAdapter(new FragmentActivityAdatper(getSupportFragmentManager()));}}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >    <TextView android:id="@+id/tv_postion"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="tv_postion"/>    <ListView android:id="@android:id/list"        android:layout_width="match_parent"        android:layout_height="wrap_content"></ListView></LinearLayout>

二、FragmentPaperAdapter类

public class FragmentActivityAdatper extends FragmentPagerAdapter{public FragmentActivityAdatper(FragmentManager fm) {super(fm);}@Overridepublic Fragment getItem(int position) {return MyListFragment.newInstance(position);}@Overridepublic int getCount() {return 4;}}

三、ListFragment类

public class MyListFragment extends ListFragment{private int positon;public static Fragment newInstance(int pos){Fragment instance = new MyListFragment();Bundle args = new Bundle();args.putInt("postion", pos);instance.setArguments(args);return instance;}@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);positon = getArguments()==null?0:getArguments().getInt("postion", 0);}@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {LayoutInflater li = LayoutInflater.from(getActivity());View v = li.inflate(R.layout.demo_activity_listfragment, null);TextView tv = (TextView) v.findViewById(R.id.tv_postion);tv.setText(""+positon);return v;}@Overridepublic void onActivityCreated(Bundle savedInstanceState) {super.onActivityCreated(savedInstanceState);setListAdapter(new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1,new String[]{"a","b","c"} ));}}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >    <TextView android:id="@+id/tv_postion"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="tv_postion"/>    <ListView android:id="@android:id/list"        android:layout_width="match_parent"        android:layout_height="wrap_content"></ListView></LinearLayout>