Question

我创建了ActionBarTab，我需要在女ListView tab中添加ListViews，listView有差异数据。但我无法在Tabs中显示我的MainActivity.xml。

@SuppressLint("NewApi") public class MainActivity extends FragmentActivity implements ActionBar.TabListener{ static String [] Years; static ArrayAdapter<String> adapter; static ListView Lists; public static Context context; public static Activity activity; AppSectionsPagerAdapter mAppSectionsPagerAdapter; ViewPager mViewPager; private String[] tabs = { "tab 1", "tab 2", "tab 3","tab 4","tab 5" }; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mAppSectionsPagerAdapter = new AppSectionsPagerAdapter(getSupportFragmentManager()); final ActionBar actionBar = getActionBar(); actionBar.setHomeButtonEnabled(false); actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); mViewPager = (ViewPager) findViewById(R.id.pager); mViewPager.setAdapter(mAppSectionsPagerAdapter); mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() { @Override public void onPageSelected(int position) { actionBar.setSelectedNavigationItem(position); } }); for (int i = 0; i < mAppSectionsPagerAdapter.getCount(); i++) { actionBar.addTab(actionBar.newTab().setText(tabs[i]) .setTabListener(this)); } } @Override public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { } @Override public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { mViewPager.setCurrentItem(tab.getPosition()); } @Override public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { } public static class AppSectionsPagerAdapter extends FragmentPagerAdapter { public AppSectionsPagerAdapter(FragmentManager fm) { super(fm); } @Override public Fragment getItem(int i) { switch (i) { case 0: Years = context.getResources().getStringArray(R.array.YEAR); Lists = (ListView) activity.findViewById(R.id.list); adapter = new ArrayAdapter<String>(context,android.R.layout.simple_list_item_1, Years); Lists.setAdapter(adapter); case 1: case 2: case 3: case 4: default: return null; } } @Override public int getCount() { return 5; } @Override public CharSequence getPageTitle(int position) { return "Section " + (position + 1); } } }：

switch case 0 :

注意：在ListView我无法显示activity_main.xml。

<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/pager" android:layout_width="match_parent" android:layout_height="match_parent" > <ListView android:id="@+id/list" android:layout_width="fill_parent" android:layout_height="wrap_content" /> </android.support.v4.view.ViewPager>：

simple_list_item_1.xml

<?xml version="1.0" encoding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/text1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="center_vertical" android:minHeight="?android:attr/listPreferredItemHeight" android:paddingLeft="6dip" android:textAppearance="?android:attr/textAppearanceLarge" />：

string-array

这是我string.xml中的listView，我从这里填写<string-array name="YEAR"> <item>1992</item> <item>1993</item> <item>1994</item> <item>1995</item> <item>1996</item> <item>1997</item> <item>1998</item> <item>1999</item> </string-array>：

{{1}}

Answer 1

好的。创建一个fragment_section_listview.xml：

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
        <ListView
        android:id="@+id/list"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />
</FrameLayout>

注意：从ListView删除activity_main.xml将其更改为：

<android.support.v4.view.ViewPager 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

然后在class：

中创建MainActivity

public static class LstView extends Fragment{
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_section_listview, container, false);

        Years = context.getResources().getStringArray(R.array.YEAR); 
        Lists = (ListView) rootView.findViewById(R.id.list);
        adapter = new ArrayAdapter<String>(context,android.R.layout.simple_list_item_1, Years);
        Lists.setAdapter(adapter);
        return rootView;
    }
}

然后write中的switch case：

 switch (i) {
   case 0:
     return new LstView();
      Other Code .....

如何在ActionBarTab中显示ListView？

1 个答案: