Mieszanka TabListener, ActionBarSherlock Fragment i ListFragment, PageAdapter? Bałagan

Question

Mam aktywność z 2 fragmentami. Zdecydowałem się użyć Adapenta strony, aby przeskoczyć między dwoma widokami, ale, aby pozostać blisko najlepszych praktyk w zakresie projektowania Androida, zdecydowałem się również użyć zakładek paska akcji (naprawione). Używam ActionBarSherlock i trochę kodu z here do implementacji kart. Wystarczy tylko pageadapter aktywność pracował wspaniale, teraz mam dwa problemy: 1) pierwszy fragment (MatchRugbyButtonFragment) superimpress obraz siebie, więc jeśli mogę go dotknąć i przesunąć lub zmienić coś widzę powyższy obrazek działający fragment. 2) kiedy przejdę do drugiego fragmentu, pierwszy straci wszystkie zmienne (reset timera, reset liczników, ecc). Musiałem utworzyć tablistener, ponieważ jeden fragment to SherlockFragment, a drugi to SherlockListFragment, który spowodował błąd, w którym nie mógł przesłać fragmentu do SherlockListFragment. Oto aktywny:

import java.util.ArrayList; 
    import java.util.Arrays; 
    import java.util.List; 
    import java.util.Vector; 

    import android.content.Intent; 
    import android.os.Bundle; 
    import android.support.v4.app.Fragment; 
    import android.support.v4.app.FragmentManager; 
    import android.support.v4.app.FragmentTransaction; 
    import android.support.v4.app.ListFragment; 
    import android.support.v4.view.ViewPager; 
    import android.view.View; 
    import android.widget.ArrayAdapter; 
    import android.widget.Toast; 

     import com.actionbarsherlock.app.ActionBar; 
    import com.actionbarsherlock.app.ActionBar.Tab; 
    import com.actionbarsherlock.app.SherlockFragment; 
    import com.actionbarsherlock.app.SherlockFragmentActivity; 
    import com.actionbarsherlock.view.Menu; 
    import com.actionbarsherlock.view.MenuInflater; 
    import com.actionbarsherlock.view.MenuItem; 


    public class MatchRugbyFragments extends SherlockFragmentActivity implements View.OnClickListener, View.OnLongClickListener{ 


public static ArrayList<String> commentary; 

public static ArrayAdapter<String> adapter; 



// list contains fragments to instantiate in the viewpager 
static List<Fragment> fragments = new Vector<Fragment>(); 
// page adapter between fragment list and view pager 
private MyPagerAdapter mPagerAdapter; 
// view pager 
private ViewPager mPager; 




protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState);  
    setContentView(R.layout.fragments_rugby); 

    FragmentManager fragmentManager = getSupportFragmentManager(); 
    FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); 

    MatchRugbyButtonFragment buttonFrag = new MatchRugbyButtonFragment(); 
    MatchRugbySummaryFragment listFrag = new MatchRugbySummaryFragment(); 
    fragmentTransaction.add(R.id.pager, buttonFrag); 
    fragmentTransaction.add(R.id.pager, listFrag); 
    fragmentTransaction.commit(); 


    // creating fragments and adding to list 
    fragments.add(buttonFrag); 
    fragments.add(listFrag); 


    // creating adapter and linking to view pager 
    this.mPagerAdapter = new MyPagerAdapter(super.getSupportFragmentManager(),fragments); 
    mPager = (ViewPager) super.findViewById(R.id.pager); 
    mPager.setAdapter(this.mPagerAdapter); 


    String[] array = {""}; 
    commentary = new ArrayList<String>(); 
    commentary.addAll(Arrays.asList(array)); 

    adapter = new ArrayAdapter<String>(this, 
      R.layout.list_item_commentary, commentary); 





    final ActionBar bar = getSupportActionBar(); 
    bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); 
    bar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE); 
    bar.setHomeButtonEnabled(true); 

    bar.addTab(bar.newTab() 
      .setText("Comandi") 
      .setTabListener(new TabListener<MatchRugbyButtonFragment>(
        this, "comandi", MatchRugbyButtonFragment.class))); 
    bar.addTab(bar.newTab() 
      .setText("Riassunto") 
      .setTabListener(new TabListenerList<MatchRugbySummaryFragment>(
        this, "riassunto", MatchRugbySummaryFragment.class))); 


    if (savedInstanceState != null) { 
     bar.setSelectedNavigationItem(savedInstanceState.getInt("tab", 0)); 
    } 
} 

@Override 
protected void onSaveInstanceState(Bundle outState) { 
    super.onSaveInstanceState(outState); 
    outState.putInt("tab", getActionBar().getSelectedNavigationIndex()); 
} 

//Comandi per il click prolungato 
public boolean onLongClick(View view) { 

    return false; 
} 


@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    MenuInflater inflater = getSupportMenuInflater(); 
    inflater.inflate(R.menu.rugby_match_menu, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    switch (item.getItemId()) { 
    case android.R.id.home: 
     // app icon in action bar clicked; go home 
     Intent intent = new Intent(this, SportScoutActivity.class); 
     intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
     startActivity(intent); 
     return true; 
    default: 
     return super.onOptionsItemSelected(item); 
    } 
} 
public static void addCommentaryRow(String s){ 
    adapter.add(s); 
    MatchRugbySummaryFragment f2 = (MatchRugbySummaryFragment) fragments.get(1); 
    f2.setListAdapter(adapter); 
} 

public static String commentaryToString(){ 
    String sAdapter= adapter.toString(); 
    return sAdapter; 
} 

public void onClick(View arg0) { 


} 



/** 
* @return the commentary 
*/ 
public ArrayList<String> getCommentary() { 
    return commentary; 
} 



/** 
* @param commentary the commentary to set 
*/ 
public void setCommentary(ArrayList<String> commentary) { 
    MatchRugbyFragments.commentary = commentary; 
} 



/** 
* @return the adapter 
*/ 
public ArrayAdapter<String> getAdapter() { 
    return adapter; 
} 



/** 
* @param adapter the adapter to set 
*/ 
public void setAdapter(ArrayAdapter<String> adapter) { 
    MatchRugbyFragments.adapter = adapter; 
} 

// page 1 fragment listener implementation 
public void onPage1(String s) {  



    // page 2 fragment update 


} 

public static class TabListener<T> implements ActionBar.TabListener { 
    private final SherlockFragmentActivity mActivity; 
    private final String mTag; 
    private final Class<T> mClass; 
    private final Bundle mArgs; 
    private android.support.v4.app.Fragment mFragment; 

    public TabListener(SherlockFragmentActivity activity, String tag, Class<T> clz) { 
     this(activity, tag, clz, null); 
    } 

    public TabListener(SherlockFragmentActivity activity, String tag, Class<T> clz, Bundle args) { 
     mActivity = activity; 
     mTag = tag; 
     mClass = clz; 
     mArgs = args; 

     // Check to see if we already have a fragment for this tab, probably 
     // from a previously saved state. If so, deactivate it, because our 
     // initial state is that a tab isn't shown. 
     mFragment = mActivity.getSupportFragmentManager().findFragmentByTag(mTag); 
     if (mFragment != null && !mFragment.isDetached()) { 
      FragmentTransaction ft = mActivity.getSupportFragmentManager().beginTransaction(); 
      ft.detach(mFragment); 
      ft.commit(); 
     } 
    } 

    public void onTabSelected(Tab tab, FragmentTransaction ft) { 
     if (mFragment == null) { 
      mFragment = (SherlockFragment) Fragment.instantiate(mActivity, mClass.getName(), mArgs); 
      ft.add(android.R.id.content, mFragment, mTag); 
     } else { 
      ft.attach(mFragment); 
     } 
    } 

    public void onTabUnselected(Tab tab, FragmentTransaction ft) { 
     if (mFragment != null) { 
      ft.detach(mFragment); 
     } 
    } 

    public void onTabReselected(Tab tab, FragmentTransaction ft) { 
     Toast.makeText(mActivity, "Reselected!", Toast.LENGTH_SHORT).show(); 
    } 


} 

public static class TabListenerList<T> implements ActionBar.TabListener { 
    private final SherlockFragmentActivity mActivity; 
    private final String mTag; 
    private final Class<T> mClass; 
    private final Bundle mArgs; 
    private android.support.v4.app.ListFragment mFragment; 

    public TabListenerList(SherlockFragmentActivity activity, String tag, Class<T> clz) { 
     this(activity, tag, clz, null); 
    } 

    public TabListenerList(SherlockFragmentActivity activity, String tag, Class<T> clz, Bundle args) { 
     mActivity = activity; 
     mTag = tag; 
     mClass = clz; 
     mArgs = args; 

     // Check to see if we already have a fragment for this tab, probably 
     // from a previously saved state. If so, deactivate it, because our 
     // initial state is that a tab isn't shown. 
     mFragment = (ListFragment) mActivity.getSupportFragmentManager().findFragmentByTag(mTag); 
     if (mFragment != null && !mFragment.isDetached()) { 
      FragmentTransaction ft = mActivity.getSupportFragmentManager().beginTransaction(); 
      ft.detach(mFragment); 
      ft.commit(); 
     } 
    } 

    public void onTabSelected(Tab tab, FragmentTransaction ft) { 
     if (mFragment == null) { 
      mFragment = (ListFragment) Fragment.instantiate(mActivity, mClass.getName(), mArgs); 
      ft.add(android.R.id.content, mFragment, mTag); 
     } else { 
      ft.attach(mFragment); 
     } 
    } 

    public void onTabUnselected(Tab tab, FragmentTransaction ft) { 
     if (mFragment != null) { 
      ft.detach(mFragment); 
     } 
    } 

    public void onTabReselected(Tab tab, FragmentTransaction ft) { 
     Toast.makeText(mActivity, "Reselected!", Toast.LENGTH_SHORT).show(); 
    } 


} 
    } 

Oto klasa pageadapter:

package com.gmail.david.corsalini.sportscout; 

    import java.util.List; 

    import android.support.v4.app.Fragment; 
    import android.support.v4.app.FragmentManager; 
    import android.support.v4.app.FragmentPagerAdapter; 

    public class MyPagerAdapter extends FragmentPagerAdapter { 

    // fragments to instantiate in the viewpager 
    private List<Fragment> fragments; 

    // constructor 
    public MyPagerAdapter(FragmentManager fm,List<Fragment> fragments) { 
     super(fm); 
     this.fragments = fragments; 
    } 

    // return access to fragment from position, required override 
    @Override 
    public Fragment getItem(int position) { 
     return this.fragments.get(position); 
    } 

    // number of fragments in list, required override 
    @Override 
    public int getCount() { 
     return this.fragments.size(); 
    } 

} 

Answer 1

!!! problem rozwiązany !!!

Nie wiem, czy to jest najlepsza praktyka tutaj na SO, ale rozwiązałem mój problem, dziękuję to page i chcę podzielić się nim, aby pomóc komuś w potrzebie. Tam pasek akcji jest "oryginalny", więc musiałem dostosować go nieco do ABS. Oto ostateczna klasy, który obsługuje każdy aspekt karcie i Swype (w tym umieszczenie wypustki wewnątrz lub na zewnątrz na pasku akcji automagicznie):

import java.util.ArrayList; 
    import java.util.Arrays; 
    import android.content.Context; 
    import android.content.Intent; 
    import android.os.Bundle; 
    import android.support.v4.app.Fragment; 
    import android.support.v4.app.FragmentPagerAdapter; 
    import android.support.v4.app.FragmentTransaction; 
    import android.support.v4.view.ViewPager; 
    import android.util.Log; 
    import android.view.View; 
    import android.widget.ArrayAdapter; 
    import com.actionbarsherlock.app.ActionBar; 
    import com.actionbarsherlock.app.ActionBar.Tab; 
    import com.actionbarsherlock.app.SherlockFragmentActivity; 
    import com.actionbarsherlock.view.Menu; 
    import com.actionbarsherlock.view.MenuInflater; 
    import com.actionbarsherlock.view.MenuItem; 



    public class MatchRugbyFragments extends SherlockFragmentActivity implements View.OnClickListener, View.OnLongClickListener{ 


public static ArrayList<String> commentary; 

public static ArrayAdapter<String> adapter; 

private ViewPager mViewPager; 
private TabsAdapter mTabsAdapter; 

protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState);  
    setContentView(R.layout.fragments_rugby); 


    String[] array = {}; 
    commentary = new ArrayList<String>(); 
    commentary.addAll(Arrays.asList(array)); 

    adapter = new ArrayAdapter<String>(this, 
      R.layout.list_item_commentary, commentary); 



    mViewPager = new ViewPager(this); 
    mViewPager.setId(R.id.pager); 
    setContentView(mViewPager); 
    final ActionBar bar = getSupportActionBar(); 
    bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); 
    bar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE); 
    bar.setHomeButtonEnabled(true); 


    mTabsAdapter = new TabsAdapter(this, mViewPager); 
    mTabsAdapter.addTab(bar.newTab().setText(""+"Comandi"), 
      MatchRugbyButtonFragment.class, null); 
    mTabsAdapter.addTab(bar.newTab().setText(""+"Riassunto"), 
      MatchRugbySummaryFragment.class, null); 


} 

@Override 
protected void onSaveInstanceState(Bundle outState) { 
    super.onSaveInstanceState(outState); 
    outState.putInt("tab", getActionBar().getSelectedNavigationIndex()); 
} 

//Comandi per il click prolungato 
public boolean onLongClick(View view) { 

    return false; 
} 


@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    MenuInflater inflater = getSupportMenuInflater(); 
    inflater.inflate(R.menu.rugby_match_menu, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    switch (item.getItemId()) { 
    case android.R.id.home: 
     // app icon in action bar clicked; go home 
     Intent intent = new Intent(this, SportScoutActivity.class); 
     intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
     startActivity(intent); 
     return true; 
    default: 
     return super.onOptionsItemSelected(item); 
    } 
} 
public static void addCommentaryRow(String s){ 
    adapter.add(s); 

} 

public static String commentaryToString(){ 
    String sAdapter= adapter.toString(); 
    return sAdapter; 
} 

public void onClick(View arg0) { 


} 



/** 
* @return the commentary 
*/ 
public ArrayList<String> getCommentary() { 
    return commentary; 
} 



/** 
* @param commentary the commentary to set 
*/ 
public void setCommentary(ArrayList<String> commentary) { 
    MatchRugbyFragments.commentary = commentary; 
} 



/** 
* @return the adapter 
*/ 
public ArrayAdapter<String> getAdapter() { 
    return adapter; 
} 



/** 
* @param adapter the adapter to set 
*/ 
public void setAdapter(ArrayAdapter<String> adapter) { 
    MatchRugbyFragments.adapter = adapter; 
} 





public static class TabsAdapter extends FragmentPagerAdapter 
implements ActionBar.TabListener, ViewPager.OnPageChangeListener { 
    private final Context mContext; 
    private final ActionBar mActionBar; 
    private final ViewPager mViewPager; 
    private final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>(); 

    static final class TabInfo { 
     private final Class<?> clss; 
     private final Bundle args; 

     TabInfo(Class<?> _class, Bundle _args) { 
      clss = _class; 
      args = _args; 
     } 
    } 

    public TabsAdapter(SherlockFragmentActivity activity, ViewPager pager) { 
     super(activity.getSupportFragmentManager()); 
     mContext = activity; 
     mActionBar = activity.getSupportActionBar(); 
     mViewPager = pager; 
     mViewPager.setAdapter(this); 
     mViewPager.setOnPageChangeListener(this); 
    } 

    public void addTab(ActionBar.Tab tab, Class<?> clss, Bundle args) { 
     TabInfo info = new TabInfo(clss, args); 
     tab.setTag(info); 
     tab.setTabListener(this); 
     mTabs.add(info); 
     mActionBar.addTab(tab); 
     notifyDataSetChanged(); 
    } 


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

    public Fragment getItem(int position) { 
     TabInfo info = mTabs.get(position); 
     return Fragment.instantiate(mContext, info.clss.getName(), info.args); 
    } 


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


    public void onPageSelected(int position) { 
     mActionBar.setSelectedNavigationItem(position); 
    } 


    public void onPageScrollStateChanged(int state) { 
    } 


    public void onTabSelected(Tab tab, FragmentTransaction ft) { 
     mViewPager.setCurrentItem(tab.getPosition()); 
     Log.v("TAG", "clicked"); 
     Object tag = tab.getTag(); 
     for (int i=0; i<mTabs.size(); i++) { 
      if (mTabs.get(i) == tag) { 
       mViewPager.setCurrentItem(i); 
      } 
     } 
    } 




    public void onTabUnselected(Tab tab, android.app.FragmentTransaction ft) {} 

    public void onTabUnselected(Tab tab, FragmentTransaction ft) { 


    } 

    public void onTabReselected(Tab tab, FragmentTransaction ft) { 


    } 


} 
    } 

Answer 2

pisałem tutorial tutaj - http://lomza.totem-soft.com/tutorial-actionbarsherlock-tabs-viewpager-listfragment-with-tab-listeners-and-more/ na ten temat. Podstawowa implementacja jest bardzo podobna do jednej z postów Davida. Być może będzie to przydatne dla kogoś;)