我在 4.1.2 中使用 sherlock 片段活动实现了 sherlock 主题
使用
android:theme="@style/Theme.Sherlock.Light"
然后选项卡小部件显示为（选项卡图标在此处显示正常）
这没关系，但是相同的代码在 2.3.3 中不起作用并显示类似的选项卡（这里的选项卡图标不像上面那样显示）
如何在所有版本中获得带有图标的相同选项卡小部件。？
这是我的 xml 代码
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TabWidget
android:id="@android:id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:divider="@color/Columbia_Blue"
android:baselineAligned="true"
android:background="@android:color/darker_gray"
android:orientation="horizontal" />
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="0" />
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="@android:color/white" />
</LinearLayout>
</TabHost>
这是java代码：
public class HomeFragment extends SherlockFragmentActivity {
private TabHost mTabHost;
private ViewPager mViewPager;
private TabsAdapter mTabsAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.home_tab_pager);
BitmapDrawable bitmap = (BitmapDrawable) getResources().getDrawable(
R.drawable.blue);
bitmap.setTileModeXY(TileMode.REPEAT, TileMode.REPEAT);
getSupportActionBar().setBackgroundDrawable(bitmap);
mTabHost = (TabHost) findViewById(android.R.id.tabhost);
mTabHost.setup();
mViewPager = (ViewPager) findViewById(R.id.pager);
mTabsAdapter = new TabsAdapter(this, mTabHost, mViewPager);
mTabsAdapter.addTab(
mTabHost.newTabSpec("List").setIndicator("",
getResources().getDrawable(R.drawable.list_icon)),
ListFragmentActivity.ListFragment.class, null);
mTabsAdapter.addTab(
mTabHost.newTabSpec("Map").setIndicator("",
getResources().getDrawable(R.drawable.globe_icon)),
ListFragmentActivity.ListFragment1.class, null);
if (savedInstanceState != null) {
mTabHost.setCurrentTabByTag(savedInstanceState.getString("tab"));
}
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putString("tab", mTabHost.getCurrentTabTag());
}
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>();
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 void onPageScrollStateChanged(int arg0) {
// TODO Auto-generated method stub
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub
}
@Override
public void onPageSelected(int position) {
// TODO Auto-generated method stub
TabWidget widget = mTabHost.getTabWidget();
int oldFocusability = widget.getDescendantFocusability();
widget.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
mTabHost.setCurrentTab(position);
widget.setDescendantFocusability(oldFocusability);
}
@Override
public void onTabChanged(String tabId) {
int position = mTabHost.getCurrentTab();
mViewPager.setCurrentItem(position);
}
@Override
public Fragment getItem(int position) {
// TODO Auto-generated method stub
TabInfo info = mTabs.get(position);
return Fragment.instantiate(mContext, info.clss.getName(),
info.args);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return mTabs.size();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Used to put dark icons on light action bar
menu.add("Pause").setIcon(R.drawable.pause_button)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
menu.add("Sign Out").setTitle("Sign out").setIcon(R.drawable.sign_out)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
menu.add("Settings").setTitle("Settings").setIcon(R.drawable.settings)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
return true;
}
@Override
public boolean onOptionsItemSelected(final MenuItem item) {
AlertDialog.Builder builder = new AlertDialog.Builder(HomeFragment.this);
if (item.getTitle().equals("Pause")) {
builder.setTitle(R.string.alert);
builder.setMessage(R.string.alert_pause_msg);
builder.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
item.setTitle("Resume").setIcon(
R.drawable.resume_button);
}
});
builder.setNegativeButton("No",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
});
builder.show();
return true;
}
if (item.getTitle().equals("Resume")) {
item.setTitle("Pause").setIcon(R.drawable.pause_button);
return true;
}
if (item.getTitle().equals("Sign out")) {
AuthPreferences pref = new AuthPreferences(getApplicationContext());
pref.clearCredentials();
Intent intent = new Intent(this, FootMarkActivity.class);
startActivity(intent);
return true;
}
if (item.getTitle().equals("Settings")) {
Intent intent = new Intent(this, SettingsActivity.class);
startActivity(intent);
}
return true;
}
}