我遇到的问题是,切换标签后,搜索视图的输入不会重置(转到其他片段).因此,第二个片段从searchview读取输入并相应地过滤listfragment,它实际上读取了我在片段1中时输入的输入.

我想要的是searchview是两个片段的单独搜索视图.有没有办法实现这个目标？

这是我的代码：

活动

public class ActivityMainApp extends Activity implements ActionBar.TabListener {
 
private FragmentManager fragmentManager = getFragmentManager();
 
@Override
public void onCreate(Bundle icicle) {
 
    super.onCreate(icicle);
setContentView(R.layout.mainapp);
 
    ActionBar actionBar = getActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
 
    // Add tabs
    ActionBar.Tab relatieTab = actionBar.newTab().setText("Relaties");
    ActionBar.Tab takenTab = actionBar.newTab().setText("Taken");
    //ActionBar.Tab urenTab = actionBar.newTab().setText("Uren");
 
    // Listeners 
    relatieTab.setTabListener(this);
    takenTab.setTabListener(this);
 
    // Tabs toevoegen aan actionbar
actionBar.addTab(relatieTab);
actionBar.addTab(takenTab);
 
    // Create fragmentmanager to switch fragments
    FragmentTransaction fragmentTransaction = this.fragmentManager.beginTransaction();
    Fragment fragment = fragmentManager.findFragmentById(R.id.fragment_content);
 
    if(fragment == null){
        FragmentTransaction ft = fragmentManager.beginTransaction();
        ft.add(R.id.fragment_content,new FragRelaties());
    }
 
}
 
public void onTabSelected(Tab tab,FragmentTransaction ft) {
 
    FragmentTransaction fragmentTransaction = this.fragmentManager.beginTransaction();
 
    if(tab.getText().equals("Taken")){
        FragTaken fragment = new FragTaken();
        fragmentTransaction.replace(R.id.fragment_content,fragment);
        fragmentTransaction.commit();
    }
 
    if(tab.getText().equals("Relaties")){
        FragRelaties fragment = new FragRelaties();
        fragmentTransaction.replace(R.id.fragment_content,fragment);
        fragmentTransaction.commit();
    }
 
}
 
public void onTabUnselected(Tab tab,FragmentTransaction ft) {
 
}
 
public void onTabReselected(Tab tab,FragmentTransaction ft) {
 
}
 
}

片段一

public class FragRelaties extends ListFragment implements SearchView.OnQueryTextListener {
 
private LayoutInflater inflater;
private ModelRelatie modelRelatie;
private AdapterRelatie relatieAdapter;
public ArrayList<Relatie> relaties;
 
public View onCreateView(final LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) {
 
        this.inflater = inflater;
 
        Activity activity = getActivity();
        final Context context = activity.getApplicationContext();
 
        setHasOptionsMenu(true);
 
 
        new AsyncTask<Void,Void,ArrayList<Relatie>>(){
 
            protected ArrayList<Relatie> doInBackground(Void... params) {
 
                // Get all my contacts
                modelRelatie = ModelRelatie.instantiate(context);
                ArrayList<Relatie> relaties = modelRelatie.getRelaties();
 
                return relaties;
 
            }
            protected void onPostExecute(ArrayList<Relatie> relaties) {
 
                // Initial input of objects in the list
                relatieAdapter = new AdapterRelatie(inflater.getContext(),R.layout.relatieslijstitem,relaties);
                setListAdapter(relatieAdapter);
 
            }
 
        }.execute();
 
        View view = inflater.inflate(R.layout.relaties,container,false);
 
        return view;
 
}
 
@Override
public void onCreateOptionsMenu(final Menu menu,final MenuInflater inflater) {
 
inflater.inflate(R.menu.relatie_menu,menu);
 
            // Get the searchview
    MenuItem zoekveld = menu.findItem(R.id.zoekveld_fragrelatie);
    SearchView zoekview = (SearchView) zoekveld.getActionView();
 
    // Execute this when searching
    zoekview.setOnQueryTextListener(this);
 
    super.onCreateOptionsMenu(menu,inflater);
 
}
 
public void onListItemClick(ListView l,View v,int position,long id) {
   // Things that happen when i click on an item in the list
}
 
public boolean onQueryTextSubmit(String query) {
    return true;
}
 
public boolean onQueryTextChange(String zoekterm) {
 
    Activity activity = getActivity();
    Context context = activity.getApplicationContext();
 
    // We start searching for the name entered
    ModelRelatie modelRelatie = ModelRelatie.instantiate(context);
    ArrayList<Relatie> relaties = modelRelatie.zoekRelatie(zoekterm);
 
    // The returned objects are placed in the list
    this.relatieAdapter = new AdapterRelatie(inflater.getContext(),relaties);
    setListAdapter(relatieAdapter);
 
    return true;
 
}

片段二

public class FragTaken extends ListFragment implements SearchView.OnQueryTextListener {
 
private LayoutInflater inflater;
private AdapterTaak adapterTaak;
private ModelTaken modelTaken;
 
public View onCreateView(LayoutInflater inflater,Bundle savedInstanceState) {
 
        this.inflater = inflater;
 
        Activity activity = getActivity();
        final Context context = activity.getApplicationContext();
 
        setHasOptionsMenu(true);
 
        this.modelTaken = ModelTaken.instantiate(context);
        ArrayList<Taak> taken = modelTaken.getTaken();
 
        // Initial input for the list
        adapterTaak = new AdapterTaak(inflater.getContext(),R.layout.takenlijstitem,taken);
        setListAdapter(adapterTaak);
 
        View view = inflater.inflate(R.layout.taken,false);
        return view;
 
}
 
@Override
public void onCreateOptionsMenu(final Menu menu,final MenuInflater inflater) {
 
inflater.inflate(R.menu.taken_menu,menu);
 
    // get the searview
    MenuItem zoekveld = menu.findItem(R.id.zoekveld_fragtaken);
    SearchView zoekview = (SearchView) zoekveld.getActionView();
 
    // Execute this when searching
    zoekview.setOnQueryTextListener(this);
 
    super.onCreateOptionsMenu(menu,inflater);
 
}
 
public boolean onQueryTextSubmit(String query) {
    return true;
}
 
public boolean onQueryTextChange(String zoekterm) {
 
    Activity activity = getActivity();
    Context context = activity.getApplicationContext();
 
    // Search the task by the inputed value
    ModelTaken modelTaken = ModelTaken.instantiate(context);
    ArrayList<Taak> taken = modelTaken.zoekTaak(zoekterm);
 
    // Return the found items to the list
    this.adapterTaak = new AdapterTaak(inflater.getContext(),taken);
    setListAdapter(adapterTaak);
 
    return true;
 
}
 
}

除搜索部分外,两个片段几乎相同.