Android ViewPager未正确加载中间页

我有一个片段，里面有一个

TabHost

，有3个选项卡。我的主要活动有一个导航抽屉，当选择了内部带有选项卡布局的选项时，它会第一次正确加载所有3个选项卡，但如果我打开抽屉并再次单击带有选项卡的选项，中间的选项将永远不会显示。在调试过程中，我也经常收到此消息

W/FragmentManager﹕ moveToState: Fragment state for PageThreeFragment{426c2ad8 #3 id=0x7f0f0063 android:switcher:2131689571:2} not updated inline; expected state 3 found 2

我希望有人能帮我解决这个错误，因为解决方案是逃避我

代码内部带有选项卡布局的片段

package com.robotca.ControlApp.Fragments;

import android.content.Context;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TabHost;
import android.widget.TabWidget;

import java.util.ArrayList;
import com.robotca.ControlApp.R;

public class HelpFragment extends Fragment
{

private TabHost mTabHost;
private ViewPager mViewPager;
private TabsAdapter mTabsAdapter;

public HelpFragment() {
}

@Override
public void onCreate(Bundle instance)
{
    super.onCreate(instance);

}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.fragment_help, container, false);

    mTabHost = (TabHost) v.findViewById(android.R.id.tabhost);
    mTabHost.setup();

    mViewPager = (ViewPager) v.findViewById(R.id.pager);
    mTabsAdapter = new TabsAdapter(getActivity(), mTabHost, mViewPager);

    // Here we load the content for each tab.
    mTabsAdapter.addTab(mTabHost.newTabSpec("one").setIndicator("Setup"), PageOneFragment.class, null);
    mTabsAdapter.addTab(mTabHost.newTabSpec("two").setIndicator("Using"), PageTwoFragment.class, null);
    mTabsAdapter.addTab(mTabHost.newTabSpec("three").setIndicator("FAQ"), PageThreeFragment.class, null);


    return v;
}

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;
        }

        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 int getCount()
    {
        return mTabs.size();
    }

    @Override
    public Fragment getItem(int position)
    {
        TabInfo info = mTabs.get(position);

        return Fragment.instantiate(mContext, info.clss.getName(), info.args);

    }

    public void onTabChanged(String tabId)
    {
        int position = mTabHost.getCurrentTab();
        mViewPager.setCurrentItem(position);
    }

    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels)
    {
    }

    public void onPageSelected(int position)
    {
        // Unfortunately when TabHost changes the current tab, it kindly
        // also takes care of putting focus on it when not in touch mode.
        // The jerk.
        // This hack tries to prevent this from pulling focus out of our
        // ViewPager.
        TabWidget widget = mTabHost.getTabWidget();
        int oldFocusability = widget.getDescendantFocusability();
        widget.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
        mTabHost.setCurrentTab(position);
        widget.setDescendantFocusability(oldFocusability);
    }

    public void onPageScrollStateChanged(int state)
    {
    }
}
}

所有3个片段的布局都是一个简单的文本视图

梯度锉

dependencies {
//    compile project(':control_app_lib')
compile fileTree(dir: 'libs', include: ['*.jar'])
///////////////

compile 'org.ros.android_core:android_10:[0.2,0.3)'
compile 'org.ros.android_core:android_15:[0.2,0.3)'
compile 'com.github.rosjava.android_extras:gingerbread:[0.2,0.3)'
compile 'org.ros.rosjava_messages:tf2_msgs:[0.5,0.6)'
compile 'com.google.code.gson:gson:2.5'
compile 'com.android.support:support-v13:23.0.1'
compile 'com.android.support:appcompat-v7:23.0.1'
compile 'com.android.support:cardview-v7:23.0.1'
compile 'com.android.support:recyclerview-v7:23.0.1'
compile 'org.osmdroid:osmdroid-android:5.0.1'
compile 'org.slf4j:slf4j-android:1.6.1-RC1'
compile 'com.github.MKergall.osmbonuspack:OSMBonusPack:v5.7'
compile 'com.android.support:support-v4:23.0.1'
compile 'com.github.amlcurran.showcaseview:library:5.4.1'
}

---

中报告了与ViewPager+FragmentStatePagerAdapter相关的问题，其中包含嵌套片段

尝试将支持库版本降级到

23.0.1

。在

23.1.1

和

23.2.0

中，似乎存在此缺陷

---

希望这有帮助

将每个支持库的版本号减少到23.0.1对我来说是个好办法

build.gradle文件-

compile 'com.android.support:design:23.0.1'
compile 'com.android.support:appcompat-v7:23.0.1'
compile 'com.android.support:support-v13:23.0.1'    
compile 'com.android.support:recyclerview-v7:23.0.1'

---

我希望这就是您想要的。

您的支持库版本是23.2.0吗？是的，这就是我正在使用的版本。嗨，您能解决这个问题吗？很遗憾，这对我不起作用。support-v4和appcombat-v7都必须是23.0.1吗？即使我的代码也遇到了这个问题。我还没弄明白这个问题。虽然，尝试了你的建议-仍然卡住了。对我来说，即使有两个选项卡，它们第一次也可以加载，但是如果我再次单击导航抽屉中的选项，它们都不会出现。有三个选项，只有中间没有显示upI首先将appcompat-v7和support:design库更改为23.0.1，但没有任何用处。之后，我将所有android支持库（包括recycler视图库）更改为23.0.1，现在我不再收到MoveToState警告。我希望这能对你的情况有所帮助。你能在你的gradle文件中发布你所拥有的吗？谢谢你的尝试，但遗憾的是，这对我不起作用

dependencies {
//    compile project(':control_app_lib')
compile fileTree(dir: 'libs', include: ['*.jar'])
///////////////

compile 'org.ros.android_core:android_10:[0.2,0.3)'
compile 'org.ros.android_core:android_15:[0.2,0.3)'
compile 'com.github.rosjava.android_extras:gingerbread:[0.2,0.3)'
compile 'org.ros.rosjava_messages:tf2_msgs:[0.5,0.6)'
compile 'com.google.code.gson:gson:2.5'
compile 'com.android.support:support-v13:23.0.1'
compile 'com.android.support:appcompat-v7:23.0.1'
compile 'com.android.support:cardview-v7:23.0.1'
compile 'com.android.support:recyclerview-v7:23.0.1'
compile 'org.osmdroid:osmdroid-android:5.0.1'
compile 'org.slf4j:slf4j-android:1.6.1-RC1'
compile 'com.github.MKergall.osmbonuspack:OSMBonusPack:v5.7'
compile 'com.android.support:support-v4:23.0.1'
compile 'com.github.amlcurran.showcaseview:library:5.4.1'
}

compile 'com.android.support:design:23.0.1'
compile 'com.android.support:appcompat-v7:23.0.1'
compile 'com.android.support:support-v13:23.0.1'    
compile 'com.android.support:recyclerview-v7:23.0.1'