更新:
您使用 actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); 我的所有三个片段都使用 actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST); 所以标签不显示。我试图同时显示选项卡和列表导航,但现在可以工作了。我想在我的片段中使用标签导航和导航模式列表。我怎样才能实现它?– 约翰·史密斯 1 小时前
你不能两者兼得。在这种情况下我会推荐的是
a) 您可以开始使用导航抽屉/滑动菜单模式,而不是使用 Navigation_mode_list。
https://developer.android.com/design/patterns/navigation-drawer.html
b) 使用 viewpager + viewpager 条代替选项卡。然后您可以使用 Naviagation_mode_list。
c) 代替使用navigation_mode_list,您可以有一个操作栏菜单项,有人可以按下它来启动一个对话框。
原来的
ActionBar 中的 Tabs 和 Tabhost 中的 Tabs 实际上是不同的,并且不使用相同的样式集。这可以解释为什么你改变风格没有做任何事情。
现在,您可以采取几种方法来获得类似 Holo 的风格。
- 您可以使用 ActionBarSherlock.Tabs + Fragments 而根本不使用 TabHost。(我的推荐)
- 您可以使用Holo Colors Generator直接设置 Tabhost 的样式(实际上,特定的 TabHost 需要更多的努力)
我重新开始(ActionBarSherlock.Tabs + Fragments)的原因是Android开发的发展方向。使用 Fragments 可以让您拥有完全可重用的代码块。此外,viewpager 还可以让您进行流畅的滑动操作以添加交互性。这是实现它并在 2.2 模拟器上测试的代码。
package com.example.stackoverflow;
import java.util.Locale;
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.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.ActionBar.TabListener;
import com.actionbarsherlock.app.SherlockFragmentActivity;
public class MainActivity extends SherlockFragmentActivity implements
TabListener {
/**
* The {@link android.support.v4.view.PagerAdapter} that will provide
* fragments for each of the sections. We use a
* {@link android.support.v4.app.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.v4.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_main);
// Set up the action bar.
final ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Create the adapter that will return a fragment for each of the three
// primary sections of the app.
mSectionsPagerAdapter = new SectionsPagerAdapter(
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 void onTabSelected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
// When the given tab is selected, switch to the corresponding page in
// the ViewPager.
mViewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
@Override
public void onTabReselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
/**
* A {@link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a DummySectionFragment (defined as a static inner class
// below) with the page number as its lone argument.
Fragment fragment = new DummySectionFragment();
Bundle args = new Bundle();
args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1);
fragment.setArguments(args);
return fragment;
}
@Override
public int getCount() {
// Show 3 total pages.
return 4;
}
@Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case 0:
return "Simple";
case 1:
return "Contacts";
case 2:
return "Custom";
case 3:
return "Throttle";
}
return null;
}
}
/**
* A dummy fragment representing a section of the app, but that simply
* displays dummy text.
*/
public static class DummySectionFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
public static final String ARG_SECTION_NUMBER = "section_number";
public DummySectionFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main_dummy,
container, false);
TextView dummyTextView = (TextView) rootView
.findViewById(R.id.section_label);
dummyTextView.setText(Integer.toString(getArguments().getInt(
ARG_SECTION_NUMBER)));
return rootView;
}
}
}
要生成此代码,我使用 File->New-> Other -> Android Folder -> Android - Activity -> Blank Activity -> Navigation style 设置为 Fixed Tabs + swipe。但是,您不能直接将其与 actionbarsherlock 一起使用,因为您需要将 Actionbar 变量替换为 getSupportActionBar,就像我在上面的代码中所做的那样。