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뷰 팝업 (이클립스 마법사로 자동 생성)을 호스팅하는 탭 활동이 있습니다. 각 탭에서 특정 조각을 인스턴스화하기 위해 자동 생성 된 FragmentPagerAdapter를 약간 수정했습니다. 처음에는 4 탭, 첫 번째 탭에 대한 3 조각 및 여전히 마지막에 자동 생성 된 자리 표시 자, 그들은 일했다. 마지막 단락의 자리 표시자를 내 단편의 인스턴스로 바꿨을 때 다음 두 가지 탭 중 하나의 단편이 비어있게됩니다. | |ViewPager 내부에 하나의 조각이 표시되지 않습니다.
[MasterFragment] [RequestMap] [MasterFragment] [MasterFragment]
이 _____________________ 빈 유지
또한 "임의의"동작 순서 (탭을 변경하고 버튼을 클릭하여 몇 가지 작업을 수행하면 스왑을 표시하지 않는 조각을 만들 수 있으며 다음과 같이 마지막 조각이됩니다) :
_____1st TAB ___ | ____ 2 번째 TAB_ | ___ 3 번째 TAB _____ | ____ 4 번째 TAB ____ | |
[MasterFragment] [RequestMap] [MasterFragment] [MasterFragment]
이 __________________________________ 빈 유지 이클립스 마법사에서 생성 된 같은 자동이기 때문에이 viewPager의 설정에 관한 코드를 생략
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
switch (position) {
case REQUEST_TAB:
masterFragment = new MasterFragment(MasterFragment.ALL_REQUEST);
return masterFragment;
case MAP_TAB:
requestMap = new RequestMap();
return requestMap;
case OWNER_TAB:
masterFragmentOwner = new MasterFragment(MasterFragment.OWNER_REQUEST);
System.out.println("I should have created the Owner MasterFragment");
return masterFragmentOwner;
case JOINED_TAB:
masterFragmentJoined = new MasterFragment(MasterFragment.JOINED_REQUEST);
return masterFragmentJoined;
}
return null;
}
@Override
public int getCount() {
return 4;
}
@Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case REQUEST_TAB:
return getString(R.string.request_tab_title).toUpperCase(l);
case MAP_TAB:
return getString(R.string.map_tab_title).toUpperCase(l);
case OWNER_TAB:
return getString(R.string.owner_tab_title).toUpperCase(l);
case JOINED_TAB:
return getString(R.string.joined_tab_title).toUpperCase(l);
default:
return "";
}
}
}
:
여기 내 FragmentPagerAdapter의 코드입니다. 여기에 MasterFragment 클래스의 코드가있는 동안 : 나는 중요한 뭔가를 누락하는 경우
package it.polimi.frontend.fragment;
import it.polimi.appengine.entity.manager.model.Request;
import it.polimi.appengine.entity.manager.model.User;
import it.polimi.frontend.activity.R;
import it.polimi.frontend.util.QueryManager;
import it.polimi.frontend.util.QueryManager.OnRequestLoadedListener;
import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.view.InflateException;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class MasterFragment extends Fragment implements OnRequestLoadedListener, RequestList.OnRequestSelectedListener, RequestDetail.OnUserClickedListener{
private boolean twoPane;
private static View view;
public final static int ALL_REQUEST=0;
public final static int OWNER_REQUEST=1;
public final static int JOINED_REQUEST=2;
private int mode;
public MasterFragment(){
this.mode=0;
}
public MasterFragment(int mode){
this.mode=mode;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
QueryManager.getInstance().addListener(this);
if (view != null) {
ViewGroup parent = (ViewGroup) view.getParent();
if (parent != null)
parent.removeView(view);
}
try {
view = inflater.inflate(R.layout.fragment_master,container, false);
List<Request> requests = new ArrayList<Request>();
RequestList requestListFragment = null;
switch (mode) {
case OWNER_REQUEST:
requests = QueryManager.getInstance().getCurrentUser().getRequests();
System.out.println("Dovrei aver recuperato le richieste dell'owner");
break;
case JOINED_REQUEST:
String mail=null;
if (QueryManager.getInstance().getCurrentUser()!=null){
User current =QueryManager.getInstance().getCurrentUser();
mail = current.getPwAccount() != null ?
current.getPwAccount()
: current.getGmailAccount() != null ?
current.getGmailAccount()
: current.getFbAccount() != null ?
current.getFbAccount()
: null;
requests = QueryManager.getInstance().getUserPartecipation(mail);
}
else
requests = new ArrayList<Request>();
break;
default: //ALL_REQUEST case and all the other possibilities
requests = QueryManager.getInstance().getRequests();
break;
}
requestListFragment = new RequestList(requests, mode);
if (view.findViewById(R.id.detail_container) != null) {//TABLET CASE
twoPane = true;
getChildFragmentManager().beginTransaction()
.replace(R.id.request_list_container,requestListFragment,RequestList.ID)
.commit();
} else { //PHONE CASE:
getChildFragmentManager().beginTransaction()
.replace(R.id.container,requestListFragment,RequestList.ID)
.commit();
}
} catch (InflateException e) {
// is already there, just return view as it is
e.printStackTrace();
}
return view;
}
@Override
public void onRequestSelected(int position, Request request) {
if (twoPane) {
DetailContainerFragment detailContFrag = new DetailContainerFragment(request,mode);
getChildFragmentManager().beginTransaction()
.replace(R.id.detail_container, detailContFrag, DetailContainerFragment.ID).commit();
} else {
switch (mode) {//This empty switch if for future changes
case OWNER_REQUEST:
break;
case JOINED_REQUEST:
break;
default://ALL_REQUEST
break;
}
RequestDetail fragment = new RequestDetail(request,mode);
Fragment reqList=getChildFragmentManager().findFragmentByTag(RequestList.ID);
getChildFragmentManager().beginTransaction()
.hide(reqList)
.addToBackStack(RequestDetail.ID)
.add(R.id.container,fragment,RequestDetail.ID)
.commit();
}
}
@Override
public void onUserClicked(User user,String requestId) {
if (!twoPane) {
FeedbackDetail fragment = new FeedbackDetail(user,this.mode,requestId);
Fragment reqDetail=getChildFragmentManager().findFragmentByTag(RequestDetail.ID);
getChildFragmentManager().beginTransaction()
.hide(reqDetail)
.addToBackStack(FeedbackDetail.ID)
.add(R.id.container,fragment,FeedbackDetail.ID)
.commit();
} else {
/*DetailContainerFragment should take care of it*/
}
}
@Override
public void onRequestLoaded(List<Request> requests) {
System.out.println("Ho caricato: "+requests.size());
RequestList requestListFragment = (RequestList)getChildFragmentManager().findFragmentByTag(RequestList.ID);
switch (mode) {//Also this switch is for future changes, but the requests list is anyway fetched and assigned to RequestList above
case OWNER_REQUEST:
//TODO
break;
case JOINED_REQUEST:
//TODO
break;
default: //ALL_REQUEST
if (requestListFragment!=null)
requestListFragment.setRequestAdapter(requests);
break;
}
}
}
알려 주시기 바랍니다. 내가 콘솔에서 쇼를 위로 배치 System.out에, 그래서 "빈"조각이 생성되어 있어야 말을 잊었 , 그것은 자신의 onCreateView를 통과해야 : 는
편집 사전에 모두 감사합니다().