包含tabhost和viewpager的片段不重叠的ListFragment

Question

MyListFragment.java this extends ListFragment and onListItemClick() I need to migrate to another two Fragments which should be displayed over this ListFragment. 

我不知道如何解决这个错误我坚持了3天帮我。我没有得到任何可以记录和显示的错误，这已经变得不可能。

public void onListItemClick(ListView l, View v, int position, long id) { 

     Log.d("ListCLicked","Yes Clicked"); 

     //String clickedDetail = (String)l.getItemAtPosition(position); 

      /* 
      * The second fragment not yet loaded. 
      * Load MyDetailFragment by FragmentTransaction, and pass 
      * data from current fragment to second fragment via bundle. 
      */ 
      MyDetailFragment myDetailFragment = new MyDetailFragment(); 
      Bundle bundle = new Bundle(); 
      //bundle.putString("KEY_DETAIL", clickedDetail); 
      myDetailFragment.setArguments(bundle); 
      Log.d("ListCLicked1","Yes Clicked"); 
      FragmentTransaction fragmentTransaction = 
        getChildFragmentManager().beginTransaction(); 
      Log.d("ListCLicked2","Yes Clicked"); 
      fragmentTransaction.add(R.id.tablistfragment, new MyDetailFragment()); 
      Log.d("ListCLicked3","Yes Clicked"); 
      fragmentTransaction.commit(); 


    } 

MyDetailFragment.java is Fragment that an inflate to detailfragment.xml containg two fragments to be overlapped over the MyListFragment. MyListFragment is containg loaders and which log my phonebook contacts and form a list out of them on click of any List Item I need to get the fragment containing the details about the contact.Help Help Help Help help Help!!!!!!!!! 

package com.example.crush_crm; 

import android.os.Bundle; 
import android.os.StrictMode; 
import android.support.v4.app.Fragment; 
import android.util.Log; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 





public class MyDetailFragment extends Fragment { 


    ContactDetails con; 

    public String number,callnumber,phn,emailtext; 
    View view; 

    public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) 
    { 

     Log.d("MyDetailFragment1","Here it is"); 
     if (android.os.Build.VERSION.SDK_INT > 9) { 
      StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); 
      StrictMode.setThreadPolicy(policy); 
     } 
     view=inflater.inflate(R.layout.detailfragment, null); 

     Log.d("MyDetailFragment","Here it is"); 




     return view ; 

    } 

    @Override 
    public void onActivityCreated(Bundle savedInstanceState) { 
     super.onActivityCreated(savedInstanceState); 


    } 


} 

MyDetailActivity extends FragmentActivity initialising the Tabhost and Viewpager.This activity doesn't get called when I execute even gives no error.I execute ContactHistory which inflates tablayout.xml , where I specify tools:context=".MyDetailACtivity" 



import android.content.Intent; 
import android.net.Uri; 
import android.os.Bundle; 
import android.support.v4.app.FragmentActivity; 
import android.support.v4.view.ViewPager.OnPageChangeListener; 
import android.util.Log; 
import android.view.View; 
import android.widget.TabHost; 
import android.widget.TabHost.OnTabChangeListener; 







public class MyDetailActivity extends FragmentActivity implements OnTabChangeListener,OnPageChangeListener{ 

    public ContactHistory his; 

    ContactDetails con; 

    public String number,callnumber,phn,emailtext; 


    public void OnCreate(Bundle savedInstanceState) 
    { 
     super.onCreate(savedInstanceState); 


     Log.d("hiiiiiiii i m in ","main"); 
     his=(ContactHistory)getSupportFragmentManager().findFragmentById(R.id.oppofragment); 
     his.mTabHost1.setup(); 


     MyDetailActivity.AddTab(this, his.mTabHost1, his.mTabHost1.newTabSpec("History").setIndicator("History")); 
     MyDetailActivity.AddTab(this, his.mTabHost1, his.mTabHost1.newTabSpec("Opportunity").setIndicator("Opportunity")); 

     his.mAdapter = new TabsPagerAdapter(this.getSupportFragmentManager()); 
     // Fragments and ViewPager Initialization 
     Log.d("Tabs Added1 ","Done"); 

     his.mViewPager1.setAdapter(his.mAdapter); 
     his.mViewPager1.setOnPageChangeListener(MyDetailActivity.this); 
     Log.d("Tabs Added2 ","Done"); 
     his.mTabHost1.setOnTabChangedListener(this); 

    } 


    private static void AddTab(MyDetailActivity activity, TabHost tabHost, TabHost.TabSpec tabSpec) { 
     tabSpec.setContent(new MyTabFactory(activity)); 
     tabHost.addTab(tabSpec); 
    } 
    public void onTabChanged(String tag) { 
     int pos = his.mTabHost1.getCurrentTab(); 
     his.mViewPager1.setCurrentItem(pos); 
    } 
    @Override 
    public void onPageScrollStateChanged(int arg0) { 
    } 

    // Manages the Page changes, synchronizing it with Tabs 
    @Override 
    public void onPageScrolled(int arg0, float arg1, int arg2) { 
     int pos = his.mViewPager1.getCurrentItem(); 
     his.mTabHost1.setCurrentTab(pos); 
    } 

    @Override 
     public void onPageSelected(int arg0) { 
    } 
    public void CallAct(View v) 
    { 
     Log.d("Hiiiiiiii","i m in main"); 
     con=(ContactDetails)getSupportFragmentManager().findFragmentById(R.id.contactfragment); 

     number=con.phone.getText().toString(); 
     Log.d("Phone Number",number); 
     callnumber="tel:"+number; 
       Log.d("Phone Number",callnumber); 

       Intent callButton=new Intent(Intent.ACTION_CALL,Uri.parse(callnumber)); 
       Log.d("Not Working","Intent Issue"); 
       startActivity(callButton); 





     } 

    public void MailAct(View v) 
    { 
     con=(ContactDetails)getSupportFragmentManager().findFragmentById(R.id.contactfragment); 
     emailtext=con.textemail.getText().toString(); 

       Intent emailIntent=new Intent(Intent.ACTION_SEND); 
       emailIntent.putExtra(Intent.EXTRA_EMAIL, new String[] {emailtext}); 
       emailIntent.setType("message/rfc822"); 
       startActivity(emailIntent); 



     } 


} 

ContactHistory.java ContactHistory just gives an inflate call to the tablayout and finds the ids for the tabhost and viewpagers. 



import android.os.Bundle; 
import android.os.StrictMode; 
import android.support.v4.app.Fragment; 
import android.support.v4.view.ViewPager; 
import android.util.Log; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.TabHost; 

public class ContactHistory extends Fragment { 

    View view; 
    public TabsPagerAdapter mAdapter; 
    public ViewPager mViewPager; 
    public TabHost mTabHost; 

    public View onCreateView(LayoutInflater inflator,ViewGroup container,Bundle saveInstanceState) 
    { 
     Log.d("ContactHistory","History Oppurutnity"); 
     view=inflator.inflate(R.layout.tablayout,container,false); 
     Log.d("onCreateView","Here I m OKKKKKKKKKKKKKKKKKKKKKKKKKK"); 
     if (android.os.Build.VERSION.SDK_INT > 9) { 
      StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); 
      StrictMode.setThreadPolicy(policy); 
     } 

     mViewPager = (ViewPager)view.findViewById(R.id.viewpager); 
     mTabHost = (TabHost) view.findViewById(android.R.id.tabhost); 
     Log.d("I m not ohk","I go from here"); 
     return view; 
    } 

} 

tablayout.xml this layout I used in another project works very fine without any problem even it gets displayed but here I need to overlap it over the Listfragment. 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context=".MainActivity" > 

    <TabHost 
     android:id="@android:id/tabhost" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content"> 

     <LinearLayout 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:orientation="vertical" > 

      <TabWidget 
       android:id="@android:id/tabs" 
       android:layout_width="fill_parent" 
       android:layout_height="wrap_content" 
       android:layout_weight="0" 
       android:orientation="horizontal" /> 

      <FrameLayout 
       android:id="@android:id/tabcontent" 
       android:layout_width="0dp" 
       android:layout_height="0dp" 
       android:layout_weight="0" /> 

      <android.support.v4.view.ViewPager 
       android:id="@+id/viewpager" 
       android:layout_width="fill_parent" 
       android:layout_height="wrap_content" 
       android:layout_gravity="top" /> 
     </LinearLayout> 
    </TabHost> 

</RelativeLayout> 

detailfragment.xml contains the two fragments the ContactDetails fragment works very fine but the fragment ContactHistory with tabhost and ViewPager doesn't get displayed and I also don't get any error 
<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" > 

    <fragment 
     android:id="@+id/contactfragment" 
     android:name="com.example.crush_crm.ContactDetails" 
     android:layout_width="match_parent" 
     android:layout_height="230dp" 
     /> 

    <fragment 
     android:id="@+id/oppofragment" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:layout_below="@id/contactfragment" 
     class="com.example.crush_crm.ContactHistory" /> 

</RelativeLayout> 

我不明白犯规得到显示的错误，但我的片段oppofragment哪里，当我尝试dispaly它就会显示contactfragment。

Answer 1

从我的理解来看，这可能是因为嵌套的片段。

嵌套碎片并不是真正解决问题的好方法。 你最好使用自定义视图：扩展一个Linear/RelativeLayout，并把它放在里面。

变化

public class MyDetailFragment extends Fragment { 

到

public class MyDetailView extends LinearLayout { 

，如果需要

然后，您不需要使用分片经理一些其他的调整，可以通过XML添加MyDetailView或按照你的意愿编程。

希望它可以帮助