我想使用 viewPager 中存在的多个 fragment 来实现 SearchView。所有 fragment 都包含列表，我想过滤这些列表并创建一个新的 ListView，它根据它属于哪个 fragment 对结果进行分类。

但我的 searchView 无法处理一个 fragment 。

这是我的主要 Activity :

package com.codeon.directory;

import android.app.SearchManager;
import android.content.Context;
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.SearchView;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.View;
import com.codeon.directory.fragments.FiveFragment;
import com.codeon.directory.fragments.FourFragment;
import com.codeon.directory.fragments.OneFragment;
import com.codeon.directory.fragments.SixFragment;
import com.codeon.directory.fragments.ThreeFragment;
import com.codeon.directory.fragments.TwoFragment;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by Nikhil Jain on 21-Sep-15.
 */
public class TabEffect extends AppCompatActivity {

    private TabLayout tabLayout;
    private ViewPager viewPager;
    public String pic[] = {"1","2","3","1","2","3","1","2","3","1","2","3","1","2","3"};
    public String state[] = {"A","B","C"};
    public String city[] = {"P","Q","R"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.tablayout);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(true);
        getSupportActionBar().setHomeButtonEnabled(true);
        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                onBackPressed();
            }
        });

        viewPager = (ViewPager) findViewById(R.id.viewpager);
        setupViewPager(viewPager);

        tabLayout = (TabLayout) findViewById(R.id.tabs);
        tabLayout.setupWithViewPager(viewPager);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.tab, menu);

        // Associate searchable configuration with the SearchView
        SearchManager searchManager =
                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
        SearchView searchView =
                (SearchView) menu.findItem(R.id.action_search).getActionView();
        searchView.setSearchableInfo(
                searchManager.getSearchableInfo(getComponentName()));
        return true;
    }

    private void setupViewPager(ViewPager viewPager) {
        ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
        Bundle bundle = new Bundle();
        bundle.putStringArray("pic", pic);
        bundle.putStringArray("district", city);
        bundle.putStringArray("state", state);
        adapter.addFragment(new OneFragment(), "ONE FRAGMENT", bundle);
        adapter.addFragment(new TwoFragment(), "TWO FRAGMENT", bundle);
        adapter.addFragment(new ThreeFragment(), "THREE FRAGMENT", bundle);
        adapter.addFragment(new FourFragment(), "FOUR FRAGMENT", bundle);
        adapter.addFragment(new FiveFragment(), "FIVE FRAGMENT", bundle);
        adapter.addFragment(new SixFragment(), "SIX FRAGMENT", bundle);
        viewPager.setAdapter(adapter);
    }

    class ViewPagerAdapter extends FragmentPagerAdapter {
        private final List<Fragment> mFragmentList = new ArrayList<>();
        private final List<String> mFragmentTitleList = new ArrayList<>();

        public ViewPagerAdapter(FragmentManager manager) {
            super(manager);
        }

        @Override
        public Fragment getItem(int position) {
            return mFragmentList.get(position);
        }

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

        public void addFragment(Fragment fragment, String title, Bundle args) {
            mFragmentList.add(fragment);
            mFragmentTitleList.add(title);
            fragment.setArguments(args);
        }

        @Override
        public CharSequence getPageTitle(int position) {
            return mFragmentTitleList.get(position);
        }
    }
}

这是我的第一个 fragment :

package com.codeon.directory.fragments;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;

import com.codeon.directory.R;
import com.codeon.directory.RecyclerAdapter;
import com.codeon.directory.customadapters.Listitems_new;

import java.util.ArrayList;

/**
 * Created by Nikhil Jain on 21-Sep-15.
 */
public class OneFragment extends Fragment {

    ListView list;
    private ArrayAdapter<String> listAdapter ;

    public OneFragment() {
        // Required empty public constructor
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        RecyclerView rootView = (RecyclerView) inflater.inflate(R.layout.fragment_one, container, false);
        // Inflate the layout for this fragment
        Bundle extras = getArguments();
        String pic[] = extras.getStringArray("pic");
        String state[] = extras.getStringArray("state");
        Log.e("VALUE",pic[0]+pic[1]+pic[2]);

        rootView.setLayoutManager(new LinearLayoutManager(rootView.getContext()));
        //listAdapter = new ArrayAdapter<>(getActivity(), android.R.layout.simple_list_item_1, android.R.id.text1, pic);
        rootView.setAdapter(new RecyclerAdapter(pic));
        return rootView;
    }
}

我的搜索 Activity :

package com.codeon.directory;

import android.app.Activity;
import android.app.SearchManager;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

/**
  * Created by Nikhil Jain on 21-Sep-15.
*/
public class SearchActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.search);

    // Get the intent, verify the action and get the query
    Intent intent = getIntent();
    if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
        String query = intent.getStringExtra(SearchManager.QUERY);
        doMySearch(query);
        Log.e("QUERY", query);
    }
}

private void doMySearch(String query) {

}
}

这是我的 AndroidManifest.xml:

<activity
        android:name=".TabEffect"
        android:label="@string/tablayout"
        android:theme="@style/AppTheme" >
    </activity>
    <activity android:name=".SearchActivity" >
        <intent-filter>
            <action android:name="android.intent.action.SEARCH" />
        </intent-filter>
        <meta-data android:name="android.app.searchable"
            android:resource="@layout/searchable"/>
    </activity>

这是我的可搜索布局:

<?xml version="1.0" encoding="utf-8"?>
<searchable
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:label="@string/app_name"
    android:hint="@string/search_hint"
    android:layout_height="wrap_content"
    android:layout_width="match_parent"/>

为了简单，我想像在 Whatsapp 中一样实现 searchView。

最佳答案

我使用以下代码得到了我的 fragment 列表，其中包含一个搜索 View 。 将代码放在每个 fragment 中你想要的地方

 @Override
public void setUserVisibleHint(boolean isVisibleToUser) {
    super.setUserVisibleHint(isVisibleToUser);

    if (isVisibleToUser)
    {
       search_bar.setOnQueryTextListener(this);
        if(listAdapter!=null)
            listAdapter.getFilter().filter(search_bar.getQuery());
    }
}

截图:

关于android - 在 android 中使用 viewpager 的具有多个 fragment 的 SearchView，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32763745/