package info.androidhive.tabsswipe;

import info.androidhive.tabsswipe.adapter.TabsPagerAdapter;

import android.annotation.SuppressLint;

import android.app.SearchManager;

import android.content.Context;

import android.support.v7.app.ActionBar;

import android.support.v7.app.ActionBar.Tab;

import android.support.v7.app.ActionBarActivity;

import android.support.v7.widget.SearchView;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.view.MenuItemCompat;

import android.support.v4.view.ViewPager;

import android.util.Log;

import android.view.KeyEvent;

import android.view.Menu;

import android.view.MenuItem;

@SuppressLint("NewApi")

public class MainActivity extends ActionBarActivity  implements

        ActionBar.TabListener {

    private ViewPager viewPager;

    private TabsPagerAdapter mAdapter;

    private ActionBar actionBar;

    private Fragment fg;

    // Tab titles

    private String[] tabs = { "TopRatedFragment", "GamesFragment", "MoviesFragment" };

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        // Initilization

        viewPager = (ViewPager) findViewById(R.id.pager);

        actionBar = getSupportActionBar();

        mAdapter = new TabsPagerAdapter(getSupportFragmentManager());

        viewPager.setOffscreenPageLimit(3);

        viewPager.setAdapter(mAdapter);

        actionBar.setHomeButtonEnabled(false);

        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);        

        // Adding Tabs

        for (String tab_name : tabs) {

            actionBar.addTab(actionBar.newTab().setText(tab_name)

                    .setTabListener(this));

        }

        /**

         * on swiping the viewpager make respective tab selected

         * */

        viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {

            public void onPageSelected(int position) {

                // on changing the page

                // make respected tab selected

//                actionBar.setSelectedNavigationItem(position);

                actionBar.selectTab(actionBar.getTabAt(position));

                mAdapter.getItem(position);

            }

            public void onPageScrolled(int arg0, float arg1, int arg2) {

            }

            public void onPageScrollStateChanged(int arg0) {

            }

        });

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

//

        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);

        getMenuInflater().inflate(R.menu.main, menu);

        MenuItem searchItem = menu.findItem(R.id.action_settings);

        SearchView searchview = (SearchView)MenuItemCompat.getActionView(searchItem);

        searchview.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));

        return super.onCreateOptionsMenu(menu);

    }

    public void onTabReselected(Tab arg0,

            android.support.v4.app.FragmentTransaction arg1) {

        // TODO Auto-generated method stub

    }

    public void onTabSelected(Tab arg0,

            android.support.v4.app.FragmentTransaction arg1) {

        // TODO Auto-generated method stub

        viewPager.setCurrentItem(arg0.getPosition());

        fg = mAdapter.getItem(arg0.getPosition());

        Log.d("fg", fg+"");

    }

    public void onTabUnselected(Tab arg0,

            android.support.v4.app.FragmentTransaction arg1) {

        // TODO Auto-generated method stub

    }

    @Override

    public boolean onKeyDown(int keyCode, KeyEvent event) {

        // TODO Auto-generated method stub

        Log.d("ActionBar", "OnKey事件");

        if(fg instanceof GamesFragment){

            GamesFragment.onKeyDown(keyCode, event);

        }

        return super.onKeyDown(keyCode, event);

    }

}

package info.androidhive.tabsswipe;

import info.androidhive.tabsswipe.R;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.util.Log;

import android.view.KeyEvent;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.Toast;

public class GamesFragment extends Fragment {

    private View view;

    @Override

    public View onCreateView(LayoutInflater inflater, ViewGroup container,

            Bundle savedInstanceState) {

        if (view == null) {

            view = inflater.inflate(R.layout.fragment_games, container, false);

        }

        ViewGroup parent = (ViewGroup) view.getParent();

        if (parent != null) {

            parent.removeView(view);

        }

        return view;

    }

    @Override

    public void onResume() {

        super.onResume();

        // 判断当前fragment是否显示

        if (getUserVisibleHint()) {

            showdata();

        }

    }

    @Override

    public void setUserVisibleHint(boolean isVisibleToUser) {

        super.setUserVisibleHint(isVisibleToUser);

        // 每次切换fragment时调用的方法

        if (isVisibleToUser) {

            showdata();

        }

    }

    private void showdata() {

        Toast.makeText(getActivity(), "Game", Toast.LENGTH_LONG).show();

    }

    public static boolean onKeyDown(int keyCode, KeyEvent event) {

        // TODO Auto-generated method stub

        if (keyCode == event.KEYCODE_BACK) {

            Log.d("GameFragmet事件", "OK");

        }

        return true;

    }

}