TabHost和ViewPager结合第一个页面不显示

============问题描述============

我使用TabHost和ViewPager想实现滑动切换的效果，但一打开程序，ViewPager的第一个页面是不会显示的（空白），只有点击了其他Tab，再点回第一个Tab，才会显示ViewPager的第一个页面，我在一开始已经用了mViewPager.setCurrentItem(0)指令，但还是无效，请哪位大侠指点一下！！！

package com.product.shiningbaby.fragment;

import android.os.Bundle;
import android.support.v4.app.Fragment;
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.util.Log;
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.product.shiningbaby.R;

public class FragmentImage extends Fragment {
        
        private TabHost mTabHost;
        //private TabWidget mTabWidget;
        private ViewPager mViewPager;
        private PagerAdapter mPagerAdapter;
        private String[] tags={"最热","最新","动态"};
        
        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,  Bundle savedInstanceState)
        {
                View root= inflater.inflate(R.layout.fragment_image, container,false);
                mViewPager=(ViewPager)root.findViewById(R.id.viewpager1);
                mPagerAdapter=new SlidePagerAdapter(getFragmentManager());
                mViewPager.setAdapter(mPagerAdapter);
                mViewPager.setCurrentItem(0);
                
                mTabHost=(TabHost)root.findViewById(android.R.id.tabhost);
                mTabHost.setup();
                mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator(tags[0]).setContent(R.id.viewpager1));
                mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator(tags[1]).setContent(R.id.viewpager1));
                mTabHost.addTab(mTabHost.newTabSpec("tab3").setIndicator(tags[2]).setContent(R.id.viewpager1));
                
                mTabHost.setOnTabChangedListener(new OnTabChangeListener()
                {
                        //第一次打开程序，TabChange时间不会发生，只有点击后才会发生
                        @Override
                        public void onTabChanged(String tabId)
                        {
                                mViewPager.setCurrentItem(mTabHost.getCurrentTab());
                                Log.d("myfather","currentTab is: "+mTabHost.getCurrentTab());
                                
                        }
                });
                
                mViewPager.setOnPageChangeListener(new OnPageChangeListener()
                {
                        @Override
                        public void onPageSelected(int index)
                        {
                                mTabHost.setCurrentTab(index);
                        }
                        
                         @Override
                         public void onPageScrolled(int arg0, float arg1, int arg2)
                         {
                                 
                         }
                         
                         @Override
                         public void onPageScrollStateChanged(int arg0)
                         {
                                 
                         }
                });
                
                return root;
                
        }
        
        @Override
    public void onCreate(Bundle savedInstanceState) {
            // TODO Auto-generated method stub
            super.onCreate(savedInstanceState);
    }
        
        private class SlidePagerAdapter extends FragmentStatePagerAdapter
        {
                public SlidePagerAdapter(FragmentManager fm)
                {
                        super(fm);
                }
                
                @Override
                public Fragment getItem(int position)
                {
                        return SlideFragment.create(tags[position]);
                }
                
                @Override
                public int getCount()
                {
                        return tags.length;
                }
        
        }
        
        public static class SlideFragment extends Fragment
        {
                public static SlideFragment create(String tag)
                {
                        SlideFragment f=new SlideFragment();
                        Bundle b=new Bundle();
                        b.putString("tag", tag);
                        f.setArguments(b);
                        return f;
                }
                
                @Override
                public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState)
                {
                        
                        View v=inflater.inflate(R.layout.fragment_image_newest, container,false);
                        TextView t=(TextView)v.findViewById(R.id.text1);
                        t.setText(getArguments().getString("tag"));
                        return v;
                }
        }

}

============解决方案1============

这个确实不显示，找半天也没找到原因，最后的方法时先将其设到1然后到0
在你的代码中就变成
mViewPager.setCurrentItem(1);
mViewPager.setCurrentItem(0);