我在应用程序中使用android.support.v7.app.ActionBar，除了一个细节外，它都能很好地工作
在4.4.2之前的设备上（我在4.0、4.1、4.2和2.3上进行了测试）Kitkat可以正常工作，但其余的则不能Kitkat和Pre- Kitkat：
package com.example.testtabbar;
import java.util.Locale;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBar.Tab;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
public class TestActivity extends ActionBarActivity implements ActionBar.TabListener {
/**
* The {@link android.support.v4.view.PagerAdapter} that will provide
* fragments for each of the sections. We use a {@link FragmentPagerAdapter}
* derivative, which will keep every loaded fragment in memory. If this
* becomes too memory intensive, it may be best to switch to a
* {@link android.support.v13.app.FragmentStatePagerAdapter}.
*/
SectionsPagerAdapter mSectionsPagerAdapter;
/**
* The {@link ViewPager} that will host the section contents.
*/
ViewPager mViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test);
// Set up the action bar.
final ActionBar actionBar = getSupportActionBar();
actionBar.setCustomView(new Button(this));
actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
mSectionsPagerAdapter = new SectionsPagerAdapter(this, getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
// When swiping between different sections, select the corresponding
// tab. We can also use ActionBar.Tab#select() to do this if we have
// a reference to the Tab.
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
// For each of the sections in the app, add a tab to the action bar.
for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
// Create a tab with text corresponding to the page title defined by
// the adapter. Also specify this Activity object, which implements
// the TabListener interface, as the callback (listener) for when
// this tab is selected.
actionBar.addTab(actionBar.newTab().setText(mSectionsPagerAdapter.getPageTitle(i)).setTabListener(this));
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.test, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A {@link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(final Context context, final FragmentManager fm) {
super(fm);
}
@Override
public PlaceholderFragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a PlaceholderFragment (defined as a static inner class below).
return PlaceholderFragment.newInstance(position + 1);
}
@Override
public int getCount() {
// Show 3 total pages.
return 3;
}
@Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case 0:
return getString(R.string.title_section1).toUpperCase(l);
case 1:
return getString(R.string.title_section2).toUpperCase(l);
case 2:
return getString(R.string.title_section3).toUpperCase(l);
}
return null;
}
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_test, container, false);
TextView textView = (TextView) rootView.findViewById(R.id.section_label);
textView.setText(Integer.toString(getArguments().getInt(ARG_SECTION_NUMBER)));
return rootView;
}
}
/* (non-Javadoc)
* @see android.support.v7.app.ActionBar.TabListener#onTabReselected(android.support.v7.app.ActionBar.Tab, android.support.v4.app.FragmentTransaction)
*/
@Override
public void onTabReselected(Tab arg0, android.support.v4.app.FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
/* (non-Javadoc)
* @see android.support.v7.app.ActionBar.TabListener#onTabSelected(android.support.v7.app.ActionBar.Tab, android.support.v4.app.FragmentTransaction)
*/
@Override
public void onTabSelected(Tab tab, android.support.v4.app.FragmentTransaction arg1) {
mViewPager.setCurrentItem(tab.getPosition());
}
/* (non-Javadoc)
* @see android.support.v7.app.ActionBar.TabListener#onTabUnselected(android.support.v7.app.ActionBar.Tab, android.support.v4.app.FragmentTransaction)
*/
@Override
public void onTabUnselected(Tab arg0, android.support.v4.app.FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
}
编辑：使用自定义视图和选项卡导航时，选项卡导航在较旧的设备中位于顶部，如何使操作栏呈现在选项卡条上方？
上面的代码在1类中演示了该问题，该按钮表示一个自定义布局
创建2个模拟器1 4.4，另一个是2.3，当您同时运行两个模拟器时，您会发现问题。
编辑：
尝试了透明图标后，结果如下：
附言左侧的白色是操作栏bg，但是中间的白色是我从屏幕快照中删除了一些文本以保护应用程序的身份
我需要左侧的图标触摸左边缘，因此下一步将测试ActionBarSherlock
最佳答案
将ViewPager与TabStrip结合使用，可以在this project中检出