我終於用一種有點古怪的方式解決了我的問題。我添加了支持操作欄和常規tabhost,然後我隱藏了原始tabhost,並獲得了viewpager和支持操作欄以相互響應。
下面的代碼,如果有人有興趣:
public class MainActivity extends SherlockFragmentActivity {
TabHost mTabHost;
ViewPager mViewPager;
TabsAdapter mTabsAdapter;
static ActionBar bar;
//public static int THEME = R.style.Theme_app;
@Override
protected void onCreate(Bundle savedInstanceState) {
//setTheme(THEME); //Used for theme switching in samples
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_tabs_pager);
mTabHost = (TabHost)findViewById(android.R.id.tabhost);
mTabHost.setup();
bar = getSupportActionBar();
bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
ActionBar.Tab tab1 = bar.newTab();
ActionBar.Tab tab2 = bar.newTab();
ActionBar.Tab tab3 = bar.newTab();
ActionBar.Tab tab4 = bar.newTab();
ActionBar.Tab tab5 = bar.newTab();
tab1.setText("Home");
tab2.setText("Learn");
tab3.setText("Media");
tab4.setText("Connect");
tab5.setText("The Book");
tab1.setTabListener(new MyTabListener());
tab2.setTabListener(new MyTabListener());
tab3.setTabListener(new MyTabListener());
tab4.setTabListener(new MyTabListener());
tab5.setTabListener(new MyTabListener());
bar.addTab(tab1);
bar.addTab(tab2);
bar.addTab(tab3);
bar.addTab(tab4);
bar.addTab(tab5);
mViewPager = (ViewPager)findViewById(R.id.pager);
mTabsAdapter = new TabsAdapter(this, mTabHost, mViewPager);
mTabsAdapter.addTab(mTabHost.newTabSpec("Home").setIndicator("Home"),
FragmentStackSupport.CountingFragment.class, null);
mTabsAdapter.addTab(mTabHost.newTabSpec("Learn").setIndicator("Learn"),
FragB.FragBList.class, null);
mTabsAdapter.addTab(mTabHost.newTabSpec("Media").setIndicator("Media"),
FragC.FragCList.class, null);
mTabsAdapter.addTab(mTabHost.newTabSpec("Connect").setIndicator("Connect"),
FragD.FragDList.class, null);
mTabsAdapter.addTab(mTabHost.newTabSpec("The Book").setIndicator("The Book"),
FragE.FragEList.class, null);
if (savedInstanceState != null) {
mTabHost.setCurrentTabByTag(savedInstanceState.getString("tab"));
}
mTabHost.getTabWidget().getChildAt(0).setVisibility(View.GONE);
mTabHost.getTabWidget().getChildAt(1).setVisibility(View.GONE);
mTabHost.getTabWidget().getChildAt(2).setVisibility(View.GONE);
mTabHost.getTabWidget().getChildAt(3).setVisibility(View.GONE);
mTabHost.getTabWidget().getChildAt(4).setVisibility(View.GONE);
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putString("tab", mTabHost.getCurrentTabTag());
}
/**
* This is a helper class that implements the management of tabs and all
* details of connecting a ViewPager with associated TabHost. It relies on a
* trick. Normally a tab host has a simple API for supplying a View or
* Intent that each tab will show. This is not sufficient for switching
* between pages. So instead we make the content part of the tab host
* 0dp high (it is not shown) and the TabsAdapter supplies its own dummy
* view to show as the tab content. It listens to changes in tabs, and takes
* care of switch to the correct paged in the ViewPager whenever the selected
* tab changes.
*/
public static class TabsAdapter extends FragmentPagerAdapter
implements TabHost.OnTabChangeListener, ViewPager.OnPageChangeListener {
private final Context mContext;
private final TabHost mTabHost;
private final ViewPager mViewPager;
private final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>();
public static int tabPosition;
static final class TabInfo {
private final String tag;
private final Class<?> clss;
private final Bundle args;
TabInfo(String _tag, Class<?> _class, Bundle _args) {
tag = _tag;
clss = _class;
args = _args;
}
}
static class DummyTabFactory implements TabHost.TabContentFactory {
private final Context mContext;
public DummyTabFactory(Context context) {
mContext = context;
}
@Override
public View createTabContent(String tag) {
View v = new View(mContext);
v.setMinimumWidth(0);
v.setMinimumHeight(0);
return v;
}
}
public TabsAdapter(FragmentActivity activity, TabHost tabHost, ViewPager pager) {
super(activity.getSupportFragmentManager());
mContext = activity;
mTabHost = tabHost;
mViewPager = pager;
mTabHost.setOnTabChangedListener(this);
mViewPager.setAdapter(this);
mViewPager.setOnPageChangeListener(this);
}
public void addTab(TabHost.TabSpec tabSpec, Class<?> clss, Bundle args) {
tabSpec.setContent(new DummyTabFactory(mContext));
String tag = tabSpec.getTag();
TabInfo info = new TabInfo(tag, clss, args);
mTabs.add(info);
mTabHost.addTab(tabSpec);
notifyDataSetChanged();
}
@Override
public int getCount() {
return mTabs.size();
}
@Override
public Fragment getItem(int position) {
TabInfo info = mTabs.get(position);
return Fragment.instantiate(mContext, info.clss.getName(), info.args);
}
@Override
public void onTabChanged(String tabId) {
int position = mTabHost.getCurrentTab();
mViewPager.setCurrentItem(position);
}
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
// Unfortunately when TabHost changes the current tab, it kindly
// also takes care of putting focus on it when not in touch mode.
// The jerk.
// This hack tries to prevent this from pulling focus out of our
// ViewPager.
TabWidget widget = mTabHost.getTabWidget();
widget.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
mTabHost.setCurrentTab(position);
bar.setSelectedNavigationItem(position);
//widget.setDescendantFocusability(oldFocusability);
}
@Override
public void onPageScrollStateChanged(int state) {
}
}
private class MyTabListener implements ActionBar.TabListener
{
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
try {
mViewPager.setCurrentItem(tab.getPosition());
} catch (Exception e) {
// TODO: handle exception
}
//
// TODO Auto-generated method stub
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
}
這是有點hackish的,還有沒有其他的方法? – lemon
是的,有=)我最終對這個解決方案並不滿意,請參閱下面的答案。 – Thoast83