package com.mycompany.random;

import java.util.List;
import java.util.Vector;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;

import com.mycompany.random.R;
import com.mycompany.random.Tab1Fragment;
import com.mycompany.random.Tab2Fragment;
import com.mycompany.random.Tab3Fragment;
import android.app.*;
import android.support.v4.view.*;

public class ViewPagerFragmentActivity extends FragmentActivity {
    private PagerAdapter mPagerAdapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        final ActionBar actionBar = getActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
        super.setContentView(R.layout.main_activity);
        //initialsie the pager
        this.initialisePaging();
        // Create a tab listener that is called when the user changes tabs.
        ActionBar.TabListener tabListener = new ActionBar.TabListener() {
            public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
            pager.setCurrentItem(tab.getPosition());
            }

            public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
                // hide the given tab
            }

            public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
                // probably ignore this event
            }
        };

        actionBar.addTab(
            actionBar.newTab()
            .setText("Home")
            .setTabListener(tabListener));

        actionBar.addTab(
            actionBar.newTab()
            .setText("Discover")
            .setTabListener(tabListener));

        actionBar.addTab(
            actionBar.newTab()
            .setText("Profile")
            .setTabListener(tabListener));

}
    private void initialisePaging() {
        List<Fragment> fragments = new Vector<Fragment>();
        fragments.add(Fragment.instantiate(this, Tab1Fragment.class.getName()));
        fragments.add(Fragment.instantiate(this, Tab2Fragment.class.getName()));
        fragments.add(Fragment.instantiate(this, Tab3Fragment.class.getName()));
        this.mPagerAdapter  = new PagerAdapter(super.getSupportFragmentManager(), fragments);
        ViewPager pager = (ViewPager)super.findViewById(R.id.viewpager);
        pager.setAdapter(this.mPagerAdapter);
        pager.setOnPageChangeListener(
            new ViewPager.SimpleOnPageChangeListener() {
                @Override
                public void onPageSelected(int position) {
                    // When swiping between pages, select the
                    // corresponding tab.
                    getActionBar().setSelectedNavigationItem(position);
                }
            });

    }
}