Android Open Source - GPSDataCollector Main Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.ymelo.gpsdatacollector.app;
//ww  w.jav  a 2  s .c om
import android.app.*;
import android.os.Bundle;
import android.support.v4.app.*;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.view.ViewPager;
import android.view.Menu;
import android.view.MenuItem;
import android.support.v4.widget.DrawerLayout;

import java.util.Locale;

import static java.util.Locale.*;


public class MainActivity extends FragmentActivity
        implements NavigationDrawerFragment.NavigationDrawerCallbacks {

    private ViewPager mViewPager;
    /**
     * Fragment managing the behaviors, interactions and presentation of the navigation drawer.
     */
    private NavigationDrawerFragment mNavigationDrawerFragment;

    /**
     * Used to store the last screen title. For use in {@link #restoreActionBar()}.
     */
    private CharSequence mTitle;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mViewPager = (ViewPager) findViewById(R.id.view_pager);
        mViewPager.setAdapter(new SectionsPagerAdapter(getSupportFragmentManager()));
        mNavigationDrawerFragment = (NavigationDrawerFragment)
                getFragmentManager().findFragmentById(R.id.navigation_drawer);
        mTitle = getTitle();

        // Set up the drawer.
        mNavigationDrawerFragment.setUp(
                R.id.navigation_drawer,
                (DrawerLayout) findViewById(R.id.drawer_layout));
    }


    /**
     * 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) {
            FragmentManager fragmentManager = getSupportFragmentManager();
            Fragment fr = null;
            String tag = null;
            switch (position) {
                case 1:
                    tag = RecordFragment.TAG;
                    fr = fragmentManager.findFragmentByTag(tag);
                    if(fr == null) {
                        fr = new RecordFragment();
                        fr.setRetainInstance(true);
//                        fragmentManager.beginTransaction()
//                                .add(R.id.fragment_container, fr, tag)
//                                .commit();
                    }

                    break;
                case 0:
                    tag = DisplayFragment.TAG;
                    fr = fragmentManager.findFragmentByTag(tag);
                    if(fr == null) {
                        fr = new DisplayFragment();
                        fr.setRetainInstance(true);
//                        fragmentManager.beginTransaction()
//                                .add(R.id.fragment_container, fr, tag)
//                                .commit();
                    }

                    break;
//            default:
//                tag = MapFragment.TAG;
//                fr = getFragmentManager().findFragmentByTag(tag);
//                if(fr == null) {
//                    fr = MapFragment.newInstance("" + position + 1);
//                }
//
//                break;
            }
            return fr;
        }

        @Override
        public int getCount() {
            // Show 3 total pages.
            return 2;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            Locale l = 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);
            }
            return null;
        }
    }

    @Override
    public void onNavigationDrawerItemSelected(int position) {
        // update the main content by replacing fragments
        if(mViewPager != null) {
            mViewPager.setCurrentItem(position);
        }
    }

    public void onSectionAttached(String title) {
        mTitle = title;
    }

    public void restoreActionBar() {
        ActionBar actionBar = getActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
        actionBar.setDisplayShowTitleEnabled(true);
        actionBar.setTitle(mTitle);
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        if (!mNavigationDrawerFragment.isDrawerOpen()) {
            // Only show items in the action bar relevant to this screen
            // if the drawer is not showing. Otherwise, let the drawer
            // decide what to show in the action bar.
            getMenuInflater().inflate(R.menu.main, menu);
            restoreActionBar();
            return true;
        }
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    public void onBackPressed() {
        if (!getSupportFragmentManager().popBackStackImmediate()) {
            finish();
        }
    }


}

Java Source Code List

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