1. 第一种，使用 TabHost + ViewPager 实现
该方法会有一个Bug，当设置tabHost.setCurrentTab()为0时，ViewPager不显示（准确的说是加载），只有点击其他任意一个tab后才会加载。
有解的同学吼一声~~~~~~~
Activity:
package com.swordy.demo.android.fragment;
import java.util.Random;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.TabHost;
import android.widget.TabHost.OnTabChangeListener;
import android.widget.TabWidget;
import android.widget.TextView;
import com.swordy.demo.android.R;
import com.swordy.library.android.util.ELog;
/**
* 1. 使用TabHost和ViewPager组合实现一个可以滑动的tab
* 2. bug：如果当前页为0，则ViewPager第一次不加载。
*
* @author swordy
* @email mryangjian@live.com
* @since Jan 20, 2014
* @version 1.0
*/
public class SlideTabs1 extends FragmentActivity
{
private static final String TAG = "AndroidDemos.SlideTabs1";
private TabHost mTabHost;
private ViewPager mViewPager;
private PagerAdapter mPagerAdapter;
private String[] addresses = { "first", "second", "third" };
@Override
protected void onCreate(Bundle arg0)
{
super.onCreate(arg0);
setContentView(R.layout.fragment_slidetabs1);
mViewPager = (ViewPager) findViewById(R.id.viewPager1);
mPagerAdapter = new MyPagerAdapter(getSupportFragmentManager());
mViewPager.setAdapter(mPagerAdapter);
mTabHost = (TabHost) findViewById(android.R.id.tabhost);
mTabHost.setup();
mTabHost.addTab(mTabHost.newTabSpec("one").setIndicator("one-1")
.setContent(R.id.viewPager1));
mTabHost.addTab(mTabHost.newTabSpec("two").setIndicator("two-2")
.setContent(R.id.viewPager1));
mTabHost.addTab(mTabHost.newTabSpec("three").setIndicator("three-3")
.setContent(R.id.viewPager1));
TabWidget tabWidget = mTabHost.getTabWidget();
int count = tabWidget.getChildCount();
for (int i = 0; i != count; i++)
{
final int index = i;
tabWidget.getChildAt(i).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v)
{
mTabHost.setCurrentTab(index);
mViewPager.setCurrentItem(index);
}
});
}
mTabHost.setOnTabChangedListener(new OnTabChangeListener() {
@Override
public void onTabChanged(String tabId)
{
ELog.i(TAG, "@--> onTabChanged by tabId: " + tabId);
}
});
mViewPager.setOnPageChangeListener(new OnPageChangeListener() {
@Override
public void onPageSelected(int arg0)
{
ELog.i(TAG, "@--> onPageSelected: " + arg0);
mTabHost.setCurrentTab(arg0);
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2)
{
}
@Override
public void onPageScrollStateChanged(int arg0)
{
}
});
}
private class MyPagerAdapter extends FragmentStatePagerAdapter
{
public MyPagerAdapter(FragmentManager fm)
{
super(fm);
}
@Override
public Fragment getItem(int position)
{
ELog.i(TAG, "@--> getItem by position" + position);
ELog.i(TAG, "@--> getItem by position" + position);
return MyFragment.create(addresses[position]);
}
@Override
public int getCount()
{
return addresses.length;
}
}
public static class MyFragment extends Fragment
{
public static MyFragment create(String address)
{
ELog.i(TAG, "@--> MyFragment.create()");
MyFragment f = new MyFragment();
Bundle b = new Bundle();
b.putString("address", address);
f.setArguments(b);
return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
Random r = new Random(System.currentTimeMillis());
Bundle b = getArguments();
View v = inflater.inflate(R.layout.fragment_viewpager1_layout1, null);
v.setBackgroundColor(r.nextInt() >> 8 | 0xFF > 8 | 0xFF > 8 | 0xFF > 8 | 0xFF > 8 | 0xFF > 8 | 0xFF > 8 | 0xFF > 8 | 0xFF > 8 | 0xFF