übergeben Variable zwischen FragmentAktivität und sein Fragment

Question

Ich bin eine FragmentAktivität und ein ShareFragment erstellt. Ich möchte die Variable (Bild-URL) von FragmentActivity an ShareFragment übergeben. Ich versuche das Paket zu verwenden, um Extras in ShareFragment zu erhalten, aber es funktioniert nicht. Ich habe dies in FragmentActivity

private ShareFragment mShareFragment; 
    FragmentManager fm = getSupportFragmentManager(); 
    mShareFragment = (ShareFragment) fm.findFragmentById(R.id.sharefragment); 

Sharefragment.java:

public class ShareFragment extends Fragment { 
private CallbackManager mCallbackManager; 
private OnShareContentChangedListener mShareContentChangedListener; 
private ViewPager mViewPage; 

// The resource to url mapping 
private static final ArrayList<Pair<Integer, String>> IMAGE_IDS = 
     new ArrayList<Pair<Integer, String>>() {{ 
      add(new Pair<>(R.drawable.goofy, "http://shareitexampleapp.parseapp.com/goofy/")); 
      add(new Pair<>(R.drawable.liking, "http://shareitexampleapp.parseapp.com/liking/")); 
      add(new Pair<>(R.drawable.viking, "http://shareitexampleapp.parseapp.com/viking/")); 
     }}; 
private String _url; 

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

    super.onCreateView(inflater, container, savedInstanceState); 
    mCallbackManager = CallbackManager.Factory.create(); 

    View view = inflater.inflate(share_it_view, container, false); 

    LoginButton loginButton = (LoginButton) view.findViewById(R.id.connectWithFbButton); 
    loginButton.setFragment(this); 
    loginButton.setReadPermissions("public_profile"); 

    setupViewPage(view); 
    LikeView pageLike = (LikeView) view.findViewById(R.id.like_page); 
    pageLike.setFragment(this); 
    return view; 
} 

@Override 
public void onActivityResult(int requestCode, int resultCode, Intent data) { 
    super.onActivityResult(requestCode, resultCode, data); 
    mCallbackManager.onActivityResult(requestCode, resultCode, data); 
    System.out.println(".......ONACTIVITYRESULT......." ); 
} 

public void setOnShareContentChangeListener(OnShareContentChangedListener listener) { 
    mShareContentChangedListener = listener; 


} 

public String getCurrentShareContent() { 

    return IMAGE_IDS.get(mViewPage.getCurrentItem()).second; 
} 

private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter { 
    public ScreenSlidePagerAdapter(FragmentManager fm) { 
     super(fm); 
    } 

    @Override 
    public Fragment getItem(int position) { 
     ShareImageFragment imageFragment = new ShareImageFragment(); 
     imageFragment.setImage(IMAGE_IDS.get(position).first); 
     return imageFragment; 
    } 

    @Override 
    public int getCount() { 
     return IMAGE_IDS.size(); 
    } 
} 

private void setupViewPage(View view) { 
    mViewPage = (ViewPager) view.findViewById(R.id.pager); 
    PagerAdapter adapter = new ScreenSlidePagerAdapter(getFragmentManager()); 
    mViewPage.setAdapter(adapter); 

    final PageSelector pageSelector = (PageSelector) view.findViewById(R.id.page_selector); 
    pageSelector.setImageCount(IMAGE_IDS.size()); 

    final LikeView photoLike = (LikeView) view.findViewById(R.id.like_photo); 
    photoLike.setFragment(this); 

    mViewPage.setOnPageChangeListener(new ViewPager.OnPageChangeListener() { 
     @Override 
     public void onPageScrolled(
       int position, 
       float positionOffset, 
       int positionOffsetPixels) { 
      pageSelector.setPosition(position); 
      String shareContent = IMAGE_IDS.get(position).second; 
      photoLike.setObjectIdAndType(
        shareContent, 
        LikeView.ObjectType.OPEN_GRAPH); 
      mShareContentChangedListener.onShareContentChanged(shareContent); 
     } 

     @Override 
     public void onPageSelected(int position) { 
     } 

     @Override 
     public void onPageScrollStateChanged(int state) { 

     } 
    }); 
} 

public interface OnShareContentChangedListener { 
    void onShareContentChanged(String content); 
} 

}

Answer 1

dies versuchen, zu hoffen, dass es

Bundle bundle = new Bundle(); 
bundle.putString("name", name); 
bundle.putString("address", address); 
FragmentA fragmentA = new FragmentA(); 
fragmentA.setArguments(bundle); 

dann in Fragment

String name = getArguments().getString("name"); 
String address = getArguments().getString("address"); 

hilft

Andere Art und Weise

den Wert in Fragmente Get:

String name = ((C)getActivity()).getValue(); 

Toast.makeText(getActivity(), name, Toast.LENGTH_SHORT); 

C-Klasse:

public String getValue() 
{ 
    return trainerStrDescription; 
}