SearchActivity.java

package com.loopeer.codereader.ui.activity;

import android.app.SearchManager;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.widget.SearchView;
import android.text.TextUtils;
import android.view.Menu;
import android.view.MenuItem;

import com.loopeer.codereader.R;

public class SearchActivity extends BaseActivity implements SearchView.OnQueryTextListener {

    private RepositoryFragment mRepositoryFragment;
    private SearchView mSearchView;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_search);
        mRepositoryFragment = (RepositoryFragment) getSupportFragmentManager()
                .findFragmentById(R.id.fragment_repository);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_file_search, menu);
        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
        mSearchView = (SearchView) menu.findItem(R.id.action_search).getActionView();
        mSearchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
        mSearchView.onActionViewExpanded();
        mSearchView.setMaxWidth(Integer.MAX_VALUE);
        mSearchView.setOnQueryTextListener(this);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == android.R.id.home) {
            this.finish();
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    public boolean onQueryTextSubmit(String query) {
        if (!TextUtils.isEmpty(query) && mRepositoryFragment != null) {
            mRepositoryFragment.setSearchText(query);
            mSearchView.clearFocus();
        }
        return true;
    }

    @Override
    public boolean onQueryTextChange(String newText) {
        return false;
    }
}