Android Open Source - android-project Main Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package pl.wroc.pwr.patryk;
// ww  w.  jav a2 s .c o  m
import java.util.EventListener;
import java.util.List;
import java.util.Locale;

import android.app.ActionBar;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.app.ListFragment;
import android.content.Context;
import android.content.Intent;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v13.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.Toast;


public class MainActivity extends Activity implements ActionBar.TabListener {

  /**
   * The {@link android.support.v4.view.PagerAdapter} that will provide
   * fragments for each of the sections. We use a {@link 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.v13.app.FragmentStatePagerAdapter}.
   */
  SectionsPagerAdapter mSectionsPagerAdapter;

  /**
   * The {@link ViewPager} that will host the section contents.
   */
  ViewPager mViewPager;
  
  protected static final int SECTION_MAIN = 1;
  protected static final int SECTION_DB_TABLE = 2;
  
  protected LocationManager locationManger;
  protected MyLocationListener locationListener;
  private CoordinatesDataSource coordinates_data_source;
  protected MyArrayAdapter adapter;
  //protected List<EventListener> eventListenerList;
  protected RunningListenerImpl listener;
  protected Context context;
  public static final int LOCATION_SETTINGS_REQUEST_CODE = 768;


  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    
    coordinates_data_source = new CoordinatesDataSource(getApplicationContext());
    coordinates_data_source.open();
      List<Coordinate> values = coordinates_data_source.getAllCoordinates();
      adapter = new MyArrayAdapter(getApplicationContext(), values);
      //setListAdapter(adapter);

    // Set up the action bar.
    final ActionBar actionBar = getActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

    // Create the adapter that will return a fragment for each of the three
    // primary sections of the activity.
    mSectionsPagerAdapter = new SectionsPagerAdapter(getFragmentManager(), this);

    // Set up the ViewPager with the sections adapter.
    mViewPager = (ViewPager) findViewById(R.id.pager);
    mViewPager.setAdapter(mSectionsPagerAdapter);

    // When swiping between different sections, select the corresponding tab. 
    // We can also use ActionBar.Tab#select() to do this if we have a reference to the Tab.
    mViewPager
        .setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
          @Override
          public void onPageSelected(int position) {
            actionBar.setSelectedNavigationItem(position);
          }
        });

    // For each of the sections in the app, add a tab to the action bar.
    for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
      // Create a tab with text corresponding to the page title defined by the adapter.
      // Also specify this Activity object, which implements the TabListener
      // interface, as the callback (listener) for when this tab is selected.
      actionBar.addTab(actionBar.newTab()
          .setText(mSectionsPagerAdapter.getPageTitle(i))
          .setTabListener(this));
    }
    
    locationListener = new MyLocationListener(
        this, getApplicationContext(), coordinates_data_source);

        locationManger = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        
/*        eventListenerList = new ArrayList<EventListener>();
        RunningListenerImpl listener = new RunningListenerImpl(this);
    this.addEventListener(listener);*/
        RunningListenerImpl listener = new RunningListenerImpl(this);
        this.setListener(listener);
  }

  @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;
  }

  @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();
    if (id == R.id.action_settings) {
      return true;
    }
    return super.onOptionsItemSelected(item);
  }

  @Override
  public void onTabSelected(ActionBar.Tab tab,
      FragmentTransaction fragmentTransaction) {
    // When the given tab is selected, switch to the corresponding page in
    // the ViewPager.
    mViewPager.setCurrentItem(tab.getPosition());
  }

  @Override
  public void onTabUnselected(ActionBar.Tab tab,
      FragmentTransaction fragmentTransaction) {
  }

  @Override
  public void onTabReselected(ActionBar.Tab tab,
      FragmentTransaction fragmentTransaction) {
  }

  @Override
  protected void onPause() {
    super.onPause();
    coordinates_data_source.close();
  }

  @Override
  protected void onResume() {
    super.onResume();
    coordinates_data_source.open();
  }

  public MyArrayAdapter getMyListAdapter(){
    return adapter;
  }
  
/*  public void addEventListener(EventListener listener){
    eventListenerList.add(listener);
  }
  
  public void removeEventListener(EventListener listener){
    eventListenerList.remove(listener);
  }*/
  
  public void setListener(EventListener listener){
    this.listener = (RunningListenerImpl) listener;
  }
  
  public void clear(){
    adapter.clear();
    coordinates_data_source.deleteAll();
    Toast.makeText(getApplicationContext(), "Deleted all coordinate points", Toast.LENGTH_SHORT).show();
  }
  

  @Override
  public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    Log.v("MYAPP", "requestCode: " + requestCode);
    Log.v("MYAPP", "resultCode: " + resultCode);
    
    if(requestCode == MainActivity.LOCATION_SETTINGS_REQUEST_CODE) {
           /* String provider = Settings.Secure.getString(
                activity.getApplicationContext().getContentResolver(), Settings.Secure.LOCATION_MODE);*/
      
      boolean isLocationProviderEnabled = 
          locationManger.isProviderEnabled( LocationManager.GPS_PROVIDER);

            Log.v("MYAPP", "isLocationProviderEnabled: " + isLocationProviderEnabled);
            if(isLocationProviderEnabled){
              listener.onRunningChange(true);  
            }
    }
  }
  
  /**
   * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
   * one of the sections/tabs/pages.
   */
  public class SectionsPagerAdapter extends FragmentPagerAdapter {

    private MainActivity activity;
    
    public SectionsPagerAdapter(FragmentManager fm, MainActivity activity) {
      super(fm);
      this.activity = activity;
    }

    @Override
    public Fragment getItem(int position) {
      // getItem is called to instantiate the fragment for the given page.
      // Return a PlaceholderFragment (defined as a static inner class below).
      Fragment toReturn = null;
      switch (position) {
      case 0:
        toReturn = PlaceholderFragment.newInstance(position + 1, activity);
        break;
      case 1:
        toReturn = MyListFragment.newInstance(position + 1, activity);
        ((MyListFragment) toReturn).setListAdapter(adapter);
        
      default:
        break;
      }
      return toReturn;
    }

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

    @Override
    public CharSequence getPageTitle(int position) {
      Locale l = Locale.getDefault();
      switch (position) {
      case 0:
        return getString(R.string.title_main).toUpperCase(l);
      case 1:
        return getString(R.string.title_table_points).toUpperCase(l);
      }
      return null;
    }
  }

  /**
   * A placeholder fragment containing a simple view.
   */
  public static class PlaceholderFragment extends Fragment {
    /**
     * The fragment argument representing the section number for this fragment.
     */
    private static final String ARG_SECTION_NUMBER = "section_number";
    private MainActivity activity;

    /**
     * Returns a new instance of this fragment for the given section number.
     */
    public static PlaceholderFragment newInstance(int sectionNumber, MainActivity activity) {
      PlaceholderFragment fragment = new PlaceholderFragment();
      fragment.activity = activity;
      Bundle args = new Bundle();
      args.putInt(ARG_SECTION_NUMBER, sectionNumber);
      fragment.setArguments(args);
      return fragment;
    }

    public PlaceholderFragment() {
    }

    @Override
    public View onCreateView(
        LayoutInflater inflater, 
        ViewGroup container,
        Bundle savedInstanceState) {
      int current_section = getArguments().getInt(ARG_SECTION_NUMBER);
      int current_layout;

      switch (current_section) {
      case SECTION_MAIN:
        current_layout = R.layout.fragment_main;
        break;
      case SECTION_DB_TABLE:
        current_layout = R.layout.fragment_table_points;
        break;
      default:
        current_layout = R.layout.fragment_main;
        break;
      }
      
      View rootView = inflater.inflate(current_layout, container, false);
      return rootView;
    }
    

    /* (non-Javadoc)
     * @see android.app.Fragment#onActivityCreated(android.os.Bundle)
     */
    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
      super.onActivityCreated(savedInstanceState);
      
          Button buttonClear = (Button) getActivity().findViewById(R.id.button_clear);
          buttonClear.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
          activity.clear();
        }
      });
          
          Button buttonStart = (Button) getActivity().findViewById(R.id.button_start);
          buttonStart.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
              activity.locationManger.requestLocationUpdates(
                  LocationManager.GPS_PROVIDER, 500, 1, activity.locationListener);

          activity.listener.onRunningChange(true);  
        }
      });
          
          Button buttonStop = (Button) getActivity().findViewById(R.id.button_stop);
          buttonStop.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
          activity.locationManger.removeUpdates(activity.locationListener);
          activity.listener.onRunningChange(false);
        }
      });    
        }
  }

  /**
   * Custom ListFragment containing a for listing
   */
  public static class MyListFragment extends ListFragment{
    /**
     * The fragment argument representing the section number for this fragment.
     */
    private static final String ARG_SECTION_NUMBER = "section_number";
    @SuppressWarnings("unused")
    private MainActivity activity;
    //private LocationManager locationManager; 

    /**
     * Returns a new instance of this fragment for the given section number.
     */
    public static MyListFragment newInstance(int sectionNumber, MainActivity activity) {
      MyListFragment fragment = new MyListFragment();
      fragment.activity = activity;
      Bundle args = new Bundle();
      args.putInt(ARG_SECTION_NUMBER, sectionNumber);
      fragment.setArguments(args);
      return fragment;
    }
    
    public MyListFragment(){}
    
    /* (non-Javadoc)
     * @see android.app.ListFragment#onCreateView(android.view.LayoutInflater, android.view.ViewGroup, android.os.Bundle)
     */
    @Override
    public View onCreateView(
        LayoutInflater inflater, 
        ViewGroup container,
        Bundle savedInstanceState) {
      int current_section = getArguments().getInt(ARG_SECTION_NUMBER);
      int current_layout;

      switch (current_section) {
      case SECTION_MAIN:
        current_layout = R.layout.fragment_main;
        break;
      case SECTION_DB_TABLE:
        current_layout = R.layout.fragment_table_points;
        break;
      default:
        current_layout = R.layout.fragment_main;
        break;
      }

      View rootView = inflater.inflate(current_layout, container, false);
      return rootView;
    }
  }
}

Java Source Code List

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