Android从其父活动刷新片段列表

概述我有一个主活动,其中包含带有3个菜单按钮的 *** 作栏.然后我在这个主要活动中有一个片段,里面有一个列表.我希望能够刷新主活动片段中的列表,当单击其中一个菜单按钮时,或者最好只删除列表中的所有行.任何帮助表示赞赏.谢谢.publicclassFavouriteextendsSherlockFragmentAct

我有一个主活动,其中包含带有3个菜单按钮的 *** 作栏.

然后我在这个主要活动中有一个片段,里面有一个列表.

我希望能够刷新主活动片段中的列表,当单击其中一个菜单按钮时,或者最好只删除列表中的所有行.

任何帮助表示赞赏.

谢谢.

public class Favourite extends SherlockFragmentActivity {    Actionbar actionbar;    public voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.favourite);        actionbar = getSupportActionbar();        actionbar.setdisplayShowTitleEnabled(false);        BitmapDrawable bg = (BitmapDrawable)getResources().getDrawable(R.drawable.actionbar_bg);        bg.setTileModeX(TileMode.REPEAT);         getSupportActionbar().setBackgroundDrawable(bg);        getSupportActionbar().setIcon(R.drawable.favourite_Title);        actionbar.setNavigationMode(Actionbar.NAVIGATION_MODE_TABS);        Actionbar.Tab tabAll = actionbar.newTab();        Actionbar.Tab tabfavs = actionbar.newTab();        Actionbar.Tab tabhist = actionbar.newTab();        tabAll.setText("all");        tabfavs.setText("favs");        tabhist.setText("hist");        tabAll.setTabListener(new MyTabListener());        tabfavs.setTabListener(new MyTabListener());        tabhist.setTabListener(new MyTabListener());        actionbar.addTab(tabAll);        actionbar.addTab(tabfavs);        actionbar.addTab(tabhist);        try{        }        catch(Exception e)        {        }    }    @OverrIDe    public boolean onCreateOptionsMenu(Menu menu) {        MenuInflater inflater = getSupportMenuInflater();        inflater.inflate(R.menu.actionbar_itemList_favourite, menu);        return true;    }    @OverrIDe    public boolean onoptionsItemSelected(MenuItem item) {        switch(item.getItemID()) {                case R.ID.history:                    break;                case R.ID.favourite:                    Intent favAct = new Intent(this, Favourite.class);                    startActivity(favAct);                    break;                case R.ID.delete:                    ///I WANT TO BE ABLE TO REFRESH FRAGMENTList FROM HERE                }                return true;    }  }class MyTabListener implements Actionbar.TabListener {    public voID onTabSelected(Tab tab, FragmentTransaction ft) {        if(tab.getposition()==0)        {            FavouriteallWords frag = new FavouriteallWords();            ft.replace(androID.R.ID.content, frag);        }        else if(tab.getposition()==1)        {            FavouriteFavWords frag = new FavouriteFavWords();            ft.replace(androID.R.ID.content, frag);        }        else if(tab.getposition()==2)        {            FavouriteHistWords frag = new FavouriteHistWords();            ft.replace(androID.R.ID.content, frag);        }    }    public voID onTabUnselected(Tab tab, FragmentTransaction ft) {        // Todo auto-generated method stub    }    public voID onTabReselected(Tab tab, FragmentTransaction ft) {        // Todo auto-generated method stub    }}

////////////////////我的列表碎片类

public class FavouriteallWords extends ListFragment {    ArrayAdapter<String> adapter;    List<String> stringOfFavWords;    public voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);    }    @OverrIDe    public VIEw onCreateVIEw(LayoutInflater inflater, VIEwGroup group, Bundle saved)    {           adapter = new ArrayAdapter<String>(                  inflater.getContext(), R.layout.row, stringOfFavWords);                  setlistadapter(adapter);          return super.onCreateVIEw(inflater, group, saved);      }    @OverrIDe    public voID onActivityCreated (Bundle savedInstanceState)    {           super.onActivityCreated(savedInstanceState);    }}

解决方法:

您可以使用INTERFACE轻松实现此目的

MainActivity.java

public class MainActivity extends Activity {    public FragmentRefreshListener getFragmentRefreshListener() {        return fragmentRefreshListener;    }    public voID setFragmentRefreshListener(FragmentRefreshListener fragmentRefreshListener) {        this.fragmentRefreshListener = fragmentRefreshListener;    }    private FragmentRefreshListener fragmentRefreshListener;    @OverrIDe    public voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.activity_main);        button b = (button)findVIEwByID(R.ID.btnRefreshFragment);        b.setonClickListener(new VIEw.OnClickListener() {            @OverrIDe            public voID onClick(VIEw vIEw) {                if(getFragmentRefreshListener()!=null){                    getFragmentRefreshListener().onRefresh();                }            }        });    }    public interface FragmentRefreshListener{        voID onRefresh();    }}

MyFragment.java

public class MyFragment extends Fragment {    @OverrIDe    public VIEw onCreateVIEw(LayoutInflater inflater, VIEwGroup container, Bundle savedInstanceState) {        VIEw v = null; // some vIEw        /// Your Code        ((MainActivity)getActivity()).setFragmentRefreshListener(new MainActivity.FragmentRefreshListener() {            @OverrIDe            public voID onRefresh() {                // Refresh Your Fragment            }        });        return v;    }}

总结

以上是内存溢出为你收集整理的Android从其父活动刷新片段列表全部内容，希望文章能够帮你解决Android从其父活动刷新片段列表所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。