TanSanC

package com.example.viewpagertest;

import java.util.Locale;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentActivity;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentPagerAdapter;

import android.support.v4.app.NavUtils;

import android.support.v4.view.ViewPager;

import android.view.Gravity;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.widget.TextView;

public class MainActivity extends FragmentActivity {

    /**

     * The {@link android.support.v4.view.PagerAdapter} that will provide

     * fragments for each of the sections. We use a

     * {@link android.support.v4.app.FragmentPagerAdapter} derivative, which

     * will keep every loaded fragment in memory. If this becomes too memory

     * intensive, it may be best to switch to a

     * {@link android.support.v4.app.FragmentStatePagerAdapter}.

     */

    SectionsPagerAdapter mSectionsPagerAdapter;

    /**

     * The {@link ViewPager} that will host the section contents.

     */

    ViewPager mViewPager;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.activity_main);

       // Create the adapter that will return a fragment for each of the three

       // primary sections of the app.

       mSectionsPagerAdapter = new SectionsPagerAdapter(

              getSupportFragmentManager());

       // Set up the ViewPager with the sections adapter.

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

        mViewPager.setAdapter(mSectionsPagerAdapter);

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

       // Inflate the menu; this adds items to the action bar if it is present.

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

       return true;

    }

    /**

     * A {@link FragmentPagerAdapter} that returns a fragment corresponding to

     * one of the sections/tabs/pages.

     */

    public class SectionsPagerAdapter extends FragmentPagerAdapter {

       public SectionsPagerAdapter(FragmentManager fm) {

           super(fm);

       }

       @Override

       public Fragment getItem(int position) {

           // getItem is called to instantiate the fragment for the given page.

           // Return a DummySectionFragment (defined as a static inner class

           // below) with the page number as its lone argument.

           Fragment fragment = new DummySectionFragment();

           Bundle args = new Bundle();

       args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1);

           fragment.setArguments(args);

           return fragment;

       }

       @Override

       public int getCount() {

           // Show 3 total pages.

           return 5;

       }

       @Override

       public CharSequence getPageTitle(int position) {

           Locale l = Locale.getDefault();

           switch (position) {

           case 0:

              return getString(R.string.title_section1).toUpperCase(l);

           case 1:

              return getString(R.string.title_section2).toUpperCase(l);

           case 2:

              return getString(R.string.title_section3).toUpperCase(l);

           case 3:

              return getString(R.string.title_section2).toUpperCase(l);

           case 4:

              return getString(R.string.title_section3).toUpperCase(l);

           }

           return null;

       }

    }

    /**

     * A dummy fragment representing a section of the app, but that simply

     * displays dummy text.

     */

    public static class DummySectionFragment extends Fragment {

       /**

        * The fragment argument representing the section number for this

        * fragment.

        */

       public static final String ARG_SECTION_NUMBER = "section_number";

       public DummySectionFragment() {

       }

       @Override

       public View onCreateView(LayoutInflater inflater, ViewGroup container,

              Bundle savedInstanceState) {

           View rootView = null;

           if (getArguments().getInt(ARG_SECTION_NUMBER) == 1) {

              rootView = inflater.inflate(R.layout.page1,

                     container, false);

           } else {

              rootView = inflater.inflate(R.layout.fragment_main_dummy,

                     container, false);

              TextView dummyTextView = (TextView) rootView

                      .findViewById(R.id.section_label);

           dummyTextView.setText(Integer.toString(getArguments().getInt(

                     ARG_SECTION_NUMBER)));

           }

           return rootView;

       }

    }

}