Android Tutorial - Hardware : Screen

 Multiscreen size

//src\apt\tutorial\AlarmActivity.java
package apt.tutorial;

import android.app.Activity;
import android.os.Bundle;

public class AlarmActivity extends Activity {
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.alarm);    
  }
}



//src\apt\tutorial\AppWidget.java
package apt.tutorial;

import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.widget.RemoteViews;

public class AppWidget extends AppWidgetProvider {
  @Override
  public void onUpdate(Context ctxt,
                        AppWidgetManager mgr,
                        int[] appWidgetIds) {
    if (Build.VERSION.SDK_INT>=Build.VERSION_CODES.HONEYCOMB) {
      onHCUpdate(ctxt, mgr, appWidgetIds);
    }
    else {
      ctxt.startService(new Intent(ctxt, WidgetService.class));
    }
  }

  public void onHCUpdate(Context ctxt, AppWidgetManager appWidgetManager,
                          int[] appWidgetIds) {
    for (int i=0; i<appWidgetIds.length; i++) {
      Intent svcIntent=new Intent(ctxt, ListWidgetService.class);
      
      svcIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
      svcIntent.setData(Uri.parse(svcIntent.toUri(Intent.URI_INTENT_SCHEME)));
      
      RemoteViews widget=new RemoteViews(ctxt.getPackageName(),
                                          R.layout.widget);
      
      widget.setRemoteAdapter(appWidgetIds[i], R.id.restaurants,
                              svcIntent);

      Intent clickIntent=new Intent(ctxt, DetailForm.class);
      PendingIntent clickPI=PendingIntent
                              .getActivity(ctxt, 0,
                                            clickIntent,
                                            PendingIntent.FLAG_UPDATE_CURRENT);
      
      widget.setPendingIntentTemplate(R.id.restaurants, clickPI);

      appWidgetManager.updateAppWidget(appWidgetIds[i], widget);
    }
    
    super.onUpdate(ctxt, appWidgetManager, appWidgetIds);
  }
}



//src\apt\tutorial\DetailForm.java
package apt.tutorial;

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;

public class DetailForm extends FragmentActivity {
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.detail_activity);
  }
  
  @Override
  public void onResume() {
    super.onResume();
    
    String restaurantId=getIntent().getStringExtra(LunchList.ID_EXTRA);
    
    if (restaurantId!=null) {
      DetailFragment details=(DetailFragment)getSupportFragmentManager()
                                                .findFragmentById(R.id.details);
                                
      if (details!=null) {
        details.loadRestaurant(restaurantId);
      }
    }
  }
}



//src\apt\tutorial\DetailFragment.java
package apt.tutorial;

import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;

public class DetailFragment extends Fragment {
  private static final String ARG_REST_ID="apt.tutorial.ARG_REST_ID";
  EditText name=null;
  EditText address=null;
  EditText notes=null;
  EditText feed=null;
  RadioGroup types=null;
  RestaurantHelper helper=null;
  String restaurantId=null;
  TextView location=null;
  LocationManager locMgr=null;
  double latitude=0.0d;
  double longitude=0.0d;
  
  public static DetailFragment newInstance(long id) {
    DetailFragment result=new DetailFragment();
    Bundle args=new Bundle();

    args.putString(ARG_REST_ID, String.valueOf(id));
    result.setArguments(args);

    return(result);
  }
  
  @Override
  public void onCreate(Bundle state) {
    super.onCreate(state);
    
    setHasOptionsMenu(true);
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
                            Bundle savedInstanceState) {
    return(inflater.inflate(R.layout.detail_form, container, false));
  }
  
  @Override
  public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    
    locMgr=(LocationManager)getActivity().
                              getSystemService(Context.LOCATION_SERVICE);
    
    name=(EditText)getView().findViewById(R.id.name);
    address=(EditText)getView().findViewById(R.id.addr);
    notes=(EditText)getView().findViewById(R.id.notes);
    types=(RadioGroup)getView().findViewById(R.id.types);
    feed=(EditText)getView().findViewById(R.id.feed);
    location=(TextView)getView().findViewById(R.id.location);
    
    Bundle args=getArguments();
    
    if (args!=null) {
      loadRestaurant(args.getString(ARG_REST_ID));
    }
  }
  
  @Override
  public void onPause() {
    save();
    getHelper().close();
    locMgr.removeUpdates(onLocationChange);
    
    super.onPause();
  }
  
  @Override
  public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    inflater.inflate(R.menu.details_option, menu);
  }

  @Override
  public void onPrepareOptionsMenu(Menu menu) {
    if (restaurantId==null) {
      menu.findItem(R.id.location).setEnabled(false);
      menu.findItem(R.id.map).setEnabled(false);
    }
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    if (item.getItemId()==R.id.feed) {
      if (isNetworkAvailable()) {
        Intent i=new Intent(getActivity(), FeedActivity.class);
        
        i.putExtra(FeedActivity.FEED_URL, feed.getText().toString());
        startActivity(i);
      }
      else {
        Toast
          .makeText(getActivity(), "Sorry, the Internet is not available",
                    Toast.LENGTH_LONG)
          .show();
      }
    
      return(true);
    }
    else if (item.getItemId()==R.id.location) {
      locMgr.requestLocationUpdates(LocationManager.GPS_PROVIDER,
                                    0, 0, onLocationChange);
      
      return(true);
    }
    else if (item.getItemId()==R.id.map) {
      Intent i=new Intent(getActivity(), RestaurantMap.class);
      
      i.putExtra(RestaurantMap.EXTRA_LATITUDE, latitude);
      i.putExtra(RestaurantMap.EXTRA_LONGITUDE, longitude);
      i.putExtra(RestaurantMap.EXTRA_NAME, name.getText().toString());
      
      startActivity(i);
      
      return(true);
    }

    return(super.onOptionsItemSelected(item));
  }
  
  public void loadRestaurant(String restaurantId) {
    this.restaurantId=restaurantId;
    
    if (restaurantId!=null) {
      load();
    }
  }
  
  private boolean isNetworkAvailable() {
    ConnectivityManager cm=(ConnectivityManager)getActivity().
                                                  getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo info=cm.getActiveNetworkInfo();
    
    return(info!=null);
  }
  
  private RestaurantHelper getHelper() {
    if (helper==null) {
      helper=new RestaurantHelper(getActivity());
    }
    
    return(helper);
  }
  
  private void load() {
    Cursor c=getHelper().getById(restaurantId);

    c.moveToFirst();    
    name.setText(getHelper().getName(c));
    address.setText(getHelper().getAddress(c));
    notes.setText(getHelper().getNotes(c));
    feed.setText(getHelper().getFeed(c));
    
    if (getHelper().getType(c).equals("sit_down")) {
      types.check(R.id.sit_down);
    }
    else if (getHelper().getType(c).equals("take_out")) {
      types.check(R.id.take_out);
    }
    else {
      types.check(R.id.delivery);
    }
    
    latitude=getHelper().getLatitude(c);
    longitude=getHelper().getLongitude(c);
    
    location.setText(String.valueOf(latitude)
                      +", "
                      +String.valueOf(longitude));
    
    c.close();
  }
  
  private void save() {
    if (name.getText().toString().length()>0) {
      String type=null;
      
      switch (types.getCheckedRadioButtonId()) {
        case R.id.sit_down:
          type="sit_down";
          break;
        case R.id.take_out:
          type="take_out";
          break;
        default:
          type="delivery";
          break;
      }
  
      if (restaurantId==null) {
        getHelper().insert(name.getText().toString(),
                            address.getText().toString(), type,
                            notes.getText().toString(),
                            feed.getText().toString());
      }
      else {
        getHelper().update(restaurantId, name.getText().toString(),
                            address.getText().toString(), type,
                            notes.getText().toString(),
                            feed.getText().toString());
      }
    }
  }
  
  LocationListener onLocationChange=new LocationListener() {
    public void onLocationChanged(Location fix) {
      getHelper().updateLocation(restaurantId, fix.getLatitude(),
                                  fix.getLongitude());
      location.setText(String.valueOf(fix.getLatitude())
                      +", "
                      +String.valueOf(fix.getLongitude()));
      locMgr.removeUpdates(onLocationChange);
      
      Toast
        .makeText(getActivity(), "Location saved",
                  Toast.LENGTH_LONG)
        .show();
    }
    
    public void onProviderDisabled(String provider) {
      // required for interface, not used
    }
    
    public void onProviderEnabled(String provider) {
      // required for interface, not used
    }
    
    public void onStatusChanged(String provider, int status,
                                  Bundle extras) {
      // required for interface, not used
    }
  };
}



//src\apt\tutorial\EditPreferences.java
package apt.tutorial;

import android.app.Activity;
import android.content.ComponentName;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.preference.PreferenceActivity;
import android.preference.PreferenceManager;

public class EditPreferences extends PreferenceActivity {
  SharedPreferences prefs=null;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    
    addPreferencesFromResource(R.xml.preferences);
  }
  
  @Override
  public void onResume() {
    super.onResume();
    
    prefs=PreferenceManager.getDefaultSharedPreferences(this);
    prefs.registerOnSharedPreferenceChangeListener(onChange);
  }
  
  @Override
  public void onPause() {
    prefs.unregisterOnSharedPreferenceChangeListener(onChange);
    
    super.onPause();
  }
  
  SharedPreferences.OnSharedPreferenceChangeListener onChange=
    new SharedPreferences.OnSharedPreferenceChangeListener() {
    public void onSharedPreferenceChanged(SharedPreferences prefs,
                                          String key) {
      if ("alarm".equals(key)) {
        boolean enabled=prefs.getBoolean(key, false);
        int flag=(enabled ?
                    PackageManager.COMPONENT_ENABLED_STATE_ENABLED :
                    PackageManager.COMPONENT_ENABLED_STATE_DISABLED);
        ComponentName component=new ComponentName(EditPreferences.this,
                                                  OnBootReceiver.class);
        
        getPackageManager()
          .setComponentEnabledSetting(component,
                                      flag,
                                      PackageManager.DONT_KILL_APP);
          
        if (enabled) {
          OnBootReceiver.setAlarm(EditPreferences.this);
        }
        else {
          OnBootReceiver.cancelAlarm(EditPreferences.this);
        }
      }
      else if ("alarm_time".equals(key)) {
        OnBootReceiver.cancelAlarm(EditPreferences.this);
        OnBootReceiver.setAlarm(EditPreferences.this);
      }
    }
  };
}



//src\apt\tutorial\FeedActivity.java
package apt.tutorial;

import android.app.AlertDialog;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Messenger;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import org.mcsoxford.rss.RSSItem;
import org.mcsoxford.rss.RSSFeed;

public class FeedActivity extends ListActivity {
  public static final String FEED_URL="apt.tutorial.FEED_URL";
  private InstanceState state=null;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    
    state=(InstanceState)getLastNonConfigurationInstance();
    
    if (state==null) {
      state=new InstanceState();
      state.handler=new FeedHandler(this);
      
      Intent i=new Intent(this, FeedService.class);
      
      i.putExtra(FeedService.EXTRA_URL,
                 getIntent().getStringExtra(FEED_URL));
      i.putExtra(FeedService.EXTRA_MESSENGER,
                 new Messenger(state.handler));
      
      startService(i);
    }
    else {
      if (state.handler!=null) {
        state.handler.attach(this);
      }
      
      if (state.feed!=null) {
        setFeed(state.feed);
      }
    }
  }
  
  @Override
  public Object onRetainNonConfigurationInstance() {
    if (state.handler!=null) {
      state.handler.detach();
    }
    
    return(state);
  }
  
  private void setFeed(RSSFeed feed) {
    state.feed=feed;
    setListAdapter(new FeedAdapter(feed));
  }
  
  private void goBlooey(Throwable t) {
    AlertDialog.Builder builder=new AlertDialog.Builder(this);
    
    builder
      .setTitle("Exception!")
      .setMessage(t.toString())
      .setPositiveButton("OK", null)
      .show();
  }
  
  private static class InstanceState {
    RSSFeed feed=null;
    FeedHandler handler=null;
  }
  
  private class FeedAdapter extends BaseAdapter {
    RSSFeed feed=null;
    
    FeedAdapter(RSSFeed feed) {
      super();
      
      this.feed=feed;
    }
    
    @Override
    public int getCount() {
      return(feed.getItems().size());
    }
    
    @Override
    public Object getItem(int position) {
      return(feed.getItems().get(position));
    }
    
    @Override
    public long getItemId(int position) {
      return(position);
    }
    
    @Override
    public View getView(int position, View convertView,
                        ViewGroup parent) {
      View row=convertView;
      
      if (row==null) {                          
        LayoutInflater inflater=getLayoutInflater();
        
        row=inflater.inflate(android.R.layout.simple_list_item_1,
                             parent, false);
      }
      
      RSSItem item=(RSSItem)getItem(position);
      
      ((TextView)row).setText(item.getTitle());
      
      return(row);
    }
  }
  
  private static class FeedHandler extends Handler {
    FeedActivity activity=null;
    
    FeedHandler(FeedActivity activity) {
      attach(activity);
    }
    
    void attach(FeedActivity activity) {
      this.activity=activity;
    }
    
    void detach() {
      this.activity=null;
    }
    
    @Override
    public void handleMessage(Message msg) {
      if (msg.arg1==RESULT_OK) {
        activity.setFeed((RSSFeed)msg.obj);
      }
      else {
        activity.goBlooey((Exception)msg.obj);
      }
    }
  };
}



//src\apt\tutorial\FeedService.java
package apt.tutorial;

import android.app.Activity;
import android.app.IntentService;
import android.content.Intent;
import android.os.Message;
import android.os.Messenger;
import android.util.Log;
import org.mcsoxford.rss.RSSItem;
import org.mcsoxford.rss.RSSFeed;
import org.mcsoxford.rss.RSSReader;

public class FeedService extends IntentService {
  public static final String EXTRA_URL="apt.tutorial.EXTRA_URL";
  public static final String EXTRA_MESSENGER="apt.tutorial.EXTRA_MESSENGER";

  public FeedService() {
    super("FeedService");
  }
  
  @Override
  public void onHandleIntent(Intent i) {
    RSSReader reader=new RSSReader();
    Messenger messenger=(Messenger)i.getExtras().get(EXTRA_MESSENGER);
    Message msg=Message.obtain();
    
    try {
      RSSFeed result=reader.load(i.getStringExtra(EXTRA_URL));
      
      msg.arg1=Activity.RESULT_OK;
      msg.obj=result;
    }
    catch (Exception e) {
      Log.e("LunchList", "Exception parsing feed", e);
      msg.arg1=Activity.RESULT_CANCELED;
      msg.obj=e;
    }
    
    try {
      messenger.send(msg);
    }
    catch (Exception e) {
      Log.w("LunchList", "Exception sending results to activity", e);
    }
  }
}




//src\apt\tutorial\ListViewsFactory.java
package apt.tutorial;

import android.appwidget.AppWidgetManager;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.widget.RemoteViews;
import android.widget.RemoteViewsService;

public class ListViewsFactory
  implements RemoteViewsService.RemoteViewsFactory {
  private Context ctxt=null;
  private RestaurantHelper helper=null;
  private Cursor restaurants=null;

  public ListViewsFactory(Context ctxt, Intent intent) {
    this.ctxt=ctxt;
  }
  
  @Override
  public void onCreate() {
    helper=new RestaurantHelper(ctxt);
    restaurants=helper
                .getReadableDatabase()
                .rawQuery("SELECT _ID, name FROM restaurants", null);
  }
  
  @Override
  public void onDestroy() {
    restaurants.close();
    helper.close();
  }

  @Override
  public int getCount() {
    return(restaurants.getCount());
  }

  @Override
  public RemoteViews getViewAt(int position) {
    RemoteViews row=new RemoteViews(ctxt.getPackageName(),
                                     R.layout.widget_row);
    
    restaurants.moveToPosition(position);
    row.setTextViewText(android.R.id.text1,
                        restaurants.getString(1));

    Intent i=new Intent();
    Bundle extras=new Bundle();
    
    extras.putString(LunchList.ID_EXTRA,
                     String.valueOf(restaurants.getInt(0)));
    i.putExtras(extras);
    row.setOnClickFillInIntent(android.R.id.text1, i);

    return(row);
  }

  @Override
  public RemoteViews getLoadingView() {
    return(null);
  }
  
  @Override
  public int getViewTypeCount() {
    return(1);
  }

  @Override
  public long getItemId(int position) {
    restaurants.moveToPosition(position);
    
    return(restaurants.getInt(0));
  }

  @Override
  public boolean hasStableIds() {
    return(true);
  }

  @Override
  public void onDataSetChanged() {
    // no-op
  }
}



//src\apt\tutorial\ListWidgetService.java
package apt.tutorial;

import android.content.Intent;
import android.widget.RemoteViewsService;

public class ListWidgetService extends RemoteViewsService {
  @Override
  public RemoteViewsFactory onGetViewFactory(Intent intent) {
    return(new ListViewsFactory(this.getApplicationContext(),
                                 intent));
  }
}



//src\apt\tutorial\LunchFragment.java
package apt.tutorial;

import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.ListFragment;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.LayoutInflater;
import android.widget.AdapterView;
import android.widget.CursorAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

public class LunchFragment extends ListFragment {
  public final static String ID_EXTRA="apt.tutorial._ID";
  Cursor model=null;
  RestaurantAdapter adapter=null;
  RestaurantHelper helper=null;
  SharedPreferences prefs=null;
  OnRestaurantListener listener=null;
  
  @Override
  public void onCreate(Bundle state) {
    super.onCreate(state);
    
    setHasOptionsMenu(true);
  }
  
  @Override
  public void onResume() {
    super.onResume();
    
    helper=new RestaurantHelper(getActivity());
    prefs=PreferenceManager.getDefaultSharedPreferences(getActivity());
    initList();
    prefs.registerOnSharedPreferenceChangeListener(prefListener);
  }
  
  @Override
  public void onPause() {
    helper.close();

    super.onPause();
  }
  
  @Override
  public void onListItemClick(ListView list, View view,
                              int position, long id) {
    if (listener!=null) {
      listener.onRestaurantSelected(id);
    }
  }
  
  @Override
  public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    inflater.inflate(R.menu.option, menu);
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    if (item.getItemId()==R.id.add) {
      startActivity(new Intent(getActivity(), DetailForm.class));
      
      return(true);
    }
    else if (item.getItemId()==R.id.prefs) {
      startActivity(new Intent(getActivity(), EditPreferences.class));
    
      return(true);
    }

    return(super.onOptionsItemSelected(item));
  }
  
  public void setOnRestaurantListener(OnRestaurantListener listener) {
    this.listener=listener;
  }
  
  private void initList() {
    if (model!=null) {
      model.close();
    }
    
    model=helper.getAll(prefs.getString("sort_order", "name"));
    adapter=new RestaurantAdapter(model);
    setListAdapter(adapter);
  }
  
  private SharedPreferences.OnSharedPreferenceChangeListener prefListener=
   new SharedPreferences.OnSharedPreferenceChangeListener() {
    public void onSharedPreferenceChanged(SharedPreferences sharedPrefs,
                                          String key) {
      if (key.equals("sort_order")) {
        initList();
      }
    }
  };
    
  public interface OnRestaurantListener {
    void onRestaurantSelected(long id);
  }
  
  class RestaurantAdapter extends CursorAdapter {
    RestaurantAdapter(Cursor c) {
      super(getActivity(), c);
    }
    
    @Override
    public void bindView(View row, Context ctxt,
                         Cursor c) {
      RestaurantHolder holder=(RestaurantHolder)row.getTag();
      
      holder.populateFrom(c, helper);
    }
    
    @Override
    public View newView(Context ctxt, Cursor c,
                         ViewGroup parent) {
      LayoutInflater inflater=getActivity().getLayoutInflater();
      View row=inflater.inflate(R.layout.row, parent, false);
      RestaurantHolder holder=new RestaurantHolder(row);
      
      row.setTag(holder);
      
      return(row);
    }
  }
  
  static class RestaurantHolder {
    private TextView name=null;
    private TextView address=null;
    private ImageView icon=null;
    
    RestaurantHolder(View row) {
      name=(TextView)row.findViewById(R.id.title);
      address=(TextView)row.findViewById(R.id.address);
      icon=(ImageView)row.findViewById(R.id.icon);
    }
    
    void populateFrom(Cursor c, RestaurantHelper helper) {
      name.setText(helper.getName(c));
      address.setText(helper.getAddress(c));
  
      if (helper.getType(c).equals("sit_down")) {
        icon.setImageResource(R.drawable.ball_red);
      }
      else if (helper.getType(c).equals("take_out")) {
        icon.setImageResource(R.drawable.ball_yellow);
      }
      else {
        icon.setImageResource(R.drawable.ball_green);
      }
    }
  }
}



//src\apt\tutorial\LunchList.java
package apt.tutorial;

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;

public class LunchList extends FragmentActivity
    implements LunchFragment.OnRestaurantListener {
  public final static String ID_EXTRA="apt.tutorial._ID";

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    
    LunchFragment lunch
      =(LunchFragment)getSupportFragmentManager()
                            .findFragmentById(R.id.lunch);
    
    lunch.setOnRestaurantListener(this);
  }
  
  public void onRestaurantSelected(long id) {
    if (findViewById(R.id.details)==null) {
      Intent i=new Intent(this, DetailForm.class);
  
      i.putExtra(ID_EXTRA, String.valueOf(id));
      startActivity(i);
    }
    else {
      FragmentManager fragMgr=getSupportFragmentManager();
      DetailFragment details=(DetailFragment)fragMgr.findFragmentById(R.id.details);
      
      if (details==null) {
        details=DetailFragment.newInstance(id);

        FragmentTransaction xaction=fragMgr.beginTransaction();
        
        xaction
          .add(R.id.details, details)
          .setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN)
          .addToBackStack(null)
          .commit();
      }
      else {
        details.loadRestaurant(String.valueOf(id));
      }
    }
  }
}



//src\apt\tutorial\OnAlarmReceiver.java
package apt.tutorial;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;

public class OnAlarmReceiver extends BroadcastReceiver {
  private static final int NOTIFY_ME_ID=1337;

  @Override
  public void onReceive(Context ctxt, Intent intent) {
    SharedPreferences prefs=PreferenceManager.getDefaultSharedPreferences(ctxt);
    boolean useNotification=prefs.getBoolean("use_notification",
                                             true);

    if (useNotification) {
      NotificationManager mgr=
        (NotificationManager)ctxt.getSystemService(Context.NOTIFICATION_SERVICE);
      Notification note=new Notification(R.drawable.stat_notify_chat,
                                          "It's time for lunch!",
                                          System.currentTimeMillis());
      PendingIntent i=PendingIntent.getActivity(ctxt, 0,
                              new Intent(ctxt, AlarmActivity.class),
                                                0);
      
      note.setLatestEventInfo(ctxt, "LunchList",
                              "It's time for lunch! Aren't you hungry?",
                              i);
      note.flags|=Notification.FLAG_AUTO_CANCEL;
      
      mgr.notify(NOTIFY_ME_ID, note);
    }
    else {
      Intent i=new Intent(ctxt, AlarmActivity.class);
      
      i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
      
      ctxt.startActivity(i);
    }
  }
}



//src\apt\tutorial\OnBootReceiver.java
package apt.tutorial;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import java.util.Calendar;

public class OnBootReceiver extends BroadcastReceiver {
  public static void setAlarm(Context ctxt) {
    AlarmManager mgr=(AlarmManager)ctxt.getSystemService(Context.ALARM_SERVICE);
    Calendar cal=Calendar.getInstance();
    SharedPreferences prefs=PreferenceManager.getDefaultSharedPreferences(ctxt);
    String time=prefs.getString("alarm_time", "12:00");
    
    cal.set(Calendar.HOUR_OF_DAY, TimePreference.getHour(time));
    cal.set(Calendar.MINUTE, TimePreference.getMinute(time));
    cal.set(Calendar.SECOND, 0);
    cal.set(Calendar.MILLISECOND, 0);
    
    if (cal.getTimeInMillis()<System.currentTimeMillis()) {
      cal.add(Calendar.DAY_OF_YEAR, 1);
    }
    
android.util.Log.e("***OnBootReceiver", android.text.format.DateFormat.format("MM/dd/yy h:mmaa", cal).toString());
    
    mgr.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),
                      AlarmManager.INTERVAL_DAY,
                      getPendingIntent(ctxt));
  }
  
  public static void cancelAlarm(Context ctxt) {
    AlarmManager mgr=(AlarmManager)ctxt.getSystemService(Context.ALARM_SERVICE);

    mgr.cancel(getPendingIntent(ctxt));
  }
  
  private static PendingIntent getPendingIntent(Context ctxt) {
    Intent i=new Intent(ctxt, OnAlarmReceiver.class);
    
    return(PendingIntent.getBroadcast(ctxt, 0, i, 0));
  }
  
  @Override
  public void onReceive(Context ctxt, Intent intent) {
android.util.Log.e("****OnBootReceiver", "got here");    
    setAlarm(ctxt);
  }
}



//src\apt\tutorial\RestaurantHelper.java
package apt.tutorial;

import android.content.Context;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteQueryBuilder;

class RestaurantHelper extends SQLiteOpenHelper {
  private static final String DATABASE_NAME="lunchlist.db";
  private static final int SCHEMA_VERSION=3;
  
  public RestaurantHelper(Context context) {
    super(context, DATABASE_NAME, null, SCHEMA_VERSION);
  }
  
  @Override
  public void onCreate(SQLiteDatabase db) {
    db.execSQL("CREATE TABLE restaurants (_id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, address TEXT, type TEXT, notes TEXT, feed TEXT, lat REAL, lon REAL);");
  }

  @Override
  public void onUpg<!-- Copyright (C) 2006 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
  
          http://www.apache.org/licenses/LICENSE-2.0
  
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->rade(SQLiteDatabase db, int oldVersion, int newVersion) {
    if (newVersion<2) {
      db.execSQL("ALTER TABLE restaurants ADD COLUMN feed TEXT");
    }
    
    if (newVersion<3) {
      db.execSQL("ALTER TABLE restaurants ADD COLUMN lat REAL");
      db.execSQL("ALTER TABLE restaurants ADD COLUMN lon REAL");
    }
  }

  public Cursor getAll(String orderBy) {
    return(getReadableDatabase()
            .rawQuery("SELECT _id, name, address, type, notes, lat, lon FROM restaurants ORDER BY "+orderBy,
                      null));
  }
  
  public Cursor getById(String id) {
    String[] args={id};

    return(getReadableDatabase()
            .rawQuery("SELECT _id, name, address, type, notes, feed, lat, lon FROM restaurants WHERE _ID=?",
                      args));
  }
  
  public void insert(String name, String address,
                     String type, String notes,
                     String feed) {
    ContentValues cv=new ContentValues();
          
    cv.put("name", name);
    cv.put("address", address);
    cv.put("type", type);
    cv.put("notes", notes);
    cv.put("feed", feed);
    
    getWritableDatabase().insert("restaurants", "name", cv);
  }
  
  public void update(String id, String name, String address,
                     String type, String notes, String feed) {
    ContentValues cv=new ContentValues();
    String[] args={id};
    
    cv.put("name", name);
    cv.put("address", address);
    cv.put("type", type);
    cv.put("notes", notes);
    cv.put("feed", feed);
    
    getWritableDatabase().update("restaurants", cv, "_ID=?",
                                 args);
  }
  
  public void updateLocation(String id, double lat, double lon) {
    ContentValues cv=new ContentValues();
    String[] args={id};
    
    cv.put("lat", lat);
    cv.put("lon", lon);
    
    getWritableDatabase().update("restaurants", cv, "_ID=?",
                                 args);
  }
  
  public String getName(Cursor c) {
    return(c.getString(1));
  }
  
  public String getAddress(Cursor c) {
    return(c.getString(2));
  }
  
  public String getType(Cursor c) {
    return(c.getString(3));
  }
  
  public String getNotes(Cursor c) {
    return(c.getString(4));
  }
  
  public String getFeed(Cursor c) {
    return(c.getString(5));
  }
  
  public double getLatitude(Cursor c) {
    return(c.getDouble(6));
  }
  
  public double getLongitude(Cursor c) {
    return(c.getDouble(7));
  }
}



//src\apt\tutorial\RestaurantMap.java
package apt.tutorial;

import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.widget.Toast;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.OverlayItem;

public class RestaurantMap extends MapActivity {
  public static final String EXTRA_LATITUDE="apt.tutorial.EXTRA_LATITUDE";
  public static final String EXTRA_LONGITUDE="apt.tutorial.EXTRA_LONGITUDE";
  public static final String EXTRA_NAME="apt.tutorial.EXTRA_NAME";
  private MapView map=null;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.map);
    
    double lat=getIntent().getDoubleExtra(EXTRA_LATITUDE, 0);
    double lon=getIntent().getDoubleExtra(EXTRA_LONGITUDE, 0);
    
    map=(MapView)findViewById(R.id.map);
    
    map.getController().setZoom(17);
    
    GeoPoint status=new GeoPoint((int)(lat*1000000.0),
                                  (int)(lon*1000000.0));
    
    map.getController().setCenter(status);
    map.setBuiltInZoomControls(true);
    
    Drawable marker=getResources().getDrawable(R.drawable.marker);
    
    marker.setBounds(0, 0, marker.getIntrinsicWidth(),
                      marker.getIntrinsicHeight());
    
    map
      .getOverlays()
      .add(new RestaurantOverlay(marker, status,
                                  getIntent().getStringExtra(EXTRA_NAME)));
  }
  
   @Override
  protected boolean isRouteDisplayed() {
    return(false);
  }
    
  private class RestaurantOverlay extends ItemizedOverlay<OverlayItem> {
    private OverlayItem item=null;
    
    public RestaurantOverlay(Drawable marker, GeoPoint point,
                              String name) {
      super(marker);
      
      boundCenterBottom(marker);
      
      item=new OverlayItem(point, name, name);

      populate();
    }
    
    @Override
    protected OverlayItem createItem(int i) {
      return(item);
    }
     
    @Override
    protected boolean onTap(int i) {
      Toast.makeText(RestaurantMap.this,
                      item.getSnippet(),
                      Toast.LENGTH_SHORT).show();
      
      return(true);
    }
    
    @Override
    public int size() {
      return(1);
    }
  }
}



//src\apt\tutorial\TimePreference.java
package apt.tutorial;

import android.content.Context;
import android.content.res.TypedArray;
import android.preference.DialogPreference;
import android.util.AttributeSet;
import android.view.View;
import android.widget.TimePicker;

public class TimePreference extends DialogPreference {
  private int lastHour=0;
  private int lastMinute=0;
  private TimePicker picker=null;
  
  public static int getHour(String time) {
    String[] pieces=time.split(":");
    
    return(Integer.parseInt(pieces[0]));
  }

  public static int getMinute(String time) {
    String[] pieces=time.split(":");
    
    return(Integer.parseInt(pieces[1]));
  }

  public TimePreference(Context ctxt, AttributeSet attrs) {
    super(ctxt, attrs);
    
    setPositiveButtonText("Set");
    setNegativeButtonText("Cancel");
  }

  @Override
  protected View onCreateDialogView() {
    picker=new TimePicker(getContext());
    
    return(picker);
  }
  
  @Override
  protected void onBindDialogView(View v) {
    super.onBindDialogView(v);
    
    picker.setCurrentHour(lastHour);
    picker.setCurrentMinute(lastMinute);
  }
  
  @Override
  protected void onDialogClosed(boolean positiveResult) {
    super.onDialogClosed(positiveResult);

    if (positiveResult) {
      lastHour=picker.getCurrentHour();
      lastMinute=picker.getCurrentMinute();
      
      String time=String.valueOf(lastHour)+":"+String.valueOf(lastMinute);
      
      if (callChangeListener(time)) {
        persistString(time);
      }
    }
  }

  @Override
  protected Object onGetDefaultValue(TypedArray a, int index) {
    return(a.getString(index));
  }

  @Override
  protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
    String time=null;
    
    if (restoreValue) {
      if (defaultValue==null) {
        time=getPersistedString("00:00");
      }
      else {
        time=getPersistedString(defaultValue.toString());
      }
    }
    else {
      time=defaultValue.toString();
    }
    
    lastHour=getHour(time);
    lastMinute=getMinute(time);
  }
}



//src\apt\tutorial\WidgetService.java
package apt.tutorial;

import android.app.IntentService;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.widget.RemoteViews;

public class WidgetService extends IntentService {
  public WidgetService() {
    super("WidgetService");
  }
    
  @Override
  public void onHandleIntent(Intent intent) {
    ComponentName me=new ComponentName(this, AppWidget.class);
    RemoteViews updateViews=new RemoteViews("apt.tutorial",
                                            R.layout.widget);
    RestaurantHelper helper=new RestaurantHelper(this);
    AppWidgetManager mgr=AppWidgetManager.getInstance(this);
    
    try {
      Cursor c=helper
                .getReadableDatabase()
                .rawQuery("SELECT COUNT(*) FROM restaurants", null);
      
      c.moveToFirst();
      
      int count=c.getInt(0);
      
      c.close();
      
      if (count>0) {
        int offset=(int)(count*Math.random());
        String args[]={String.valueOf(offset)};
        
        c=helper
            .getReadableDatabase()
            .rawQuery("SELECT _ID, name FROM restaurants LIMIT 1 OFFSET ?", args);
        c.moveToFirst();
        updateViews.setTextViewText(R.id.name, c.getString(1));
        
        Intent i=new Intent(this, DetailForm.class);
        
        i.putExtra(LunchList.ID_EXTRA, c.getString(0));
        
        PendingIntent pi=PendingIntent.getActivity(this, 0, i,
                                                    PendingIntent.FLAG_UPDATE_CURRENT);
        
        updateViews.setOnClickPendingIntent(R.id.name, pi);
      }
      else {
        updateViews.setTextViewText(R.id.title,
                                    this.getString(R.string.empty));
      }
    }
    finally {
      helper.close();
    }
    
    Intent i=new Intent(this, WidgetService.class);
    PendingIntent pi=PendingIntent.getService(this, 0, i, 0);
      
    updateViews.setOnClickPendingIntent(R.id.next, pi);
    mgr.updateAppWidget(me, updateViews);
  }
}



//
//res\xml-v11\widget_provider.xml
<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
  android:minWidth="220dip"
  android:minHeight="220dip"
  android:updatePeriodMillis="1800000"
  android:initialLayout="@layout/widget"
  android:previewImage="@drawable/hc_widget_preview"
/>



//
//res\xml\preferences.xml
<PreferenceScreen
  xmlns:android="http://schemas.android.com/apk/res/android">
  <ListPreference
    android:key="sort_order"
    android:title="Sort Order"
    android:summary="Choose the order the list uses"
    android:entries="@array/sort_names"
    android:entryValues="@array/sort_clauses"
    android:dialogTitle="Choose a sort order" />
  <CheckBoxPreference
    android:key="alarm"
    android:title="Sound a Lunch Alarm"
    android:summary="Check if you want to know when it is time for lunch" />
  <apt.tutorial.TimePreference
    android:key="alarm_time"
    android:title="Lunch Alarm Time"
    android:defaultValue="12:00"
    android:summary="Set your desired time for the lunch alarm"
    android:dependency="alarm" />
  <CheckBoxPreference
    android:key="use_notification"
    android:title="Use a Notification"
    android:defaultValue="true"
    android:summary="Check if you want a status bar icon at lunchtime, or uncheck for a full-screen notice"
    android:dependency="alarm" />
</PreferenceScreen>



//res\xml\widget_provider.xml
<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
   android:minWidth="300dip"
   android:minHeight="79dip"
   android:updatePeriodMillis="1800000"
   android:initialLayout="@layout/widget"
/>



//
//res\values\arrays.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
  <string-array name="sort_names">
    <item>By Name, Ascending</item>
    <item>By Name, Descending</item>
    <item>By Type</item>
    <item>By Address, Ascending</item>
    <item>By Address, Descending</item>
  </string-array>
  <string-array name="sort_clauses">
    <item>name ASC</item>
    <item>name DESC</item>
    <item>type, name ASC</item>
    <item>address ASC</item>
    <item>address DESC</item>
  </string-array>
</resources>



//res\values\strings.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">LunchList</string>
    <string name="empty">No restaurants!</string>
</resources>



//
//res\menu\details_option.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:id="@+id/feed"
    android:title="RSS Feed"
    android:icon="@drawable/ic_menu_friendslist"
  />
  <item android:id="@+id/location"
    android:title="Save Location"
    android:icon="@drawable/ic_menu_compass"
  />
  <item android:id="@+id/map"
    android:title="Show on Map"
    android:icon="@drawable/ic_menu_mapmode"
  />
</menu>



//res\menu\option.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:id="@+id/add"
    android:title="Add"
    android:icon="@drawable/ic_menu_add"
    android:showAsAction="ifRoom|withText"
  />
  <item android:id="@+id/prefs"
    android:title="Settings"
    android:icon="@drawable/ic_menu_preferences"
  />
</menu>



//
//res\layout-v11\widget.xml
<?xml version="1.0" encoding="utf-8"?>
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/restaurants"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:layout_marginTop="3dp"
  android:layout_marginLeft="3dp"
  android:background="@drawable/widget_frame"
/>



//
//res\layout-large-land\main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:orientation="horizontal"
>
  <fragment
    class="apt.tutorial.LunchFragment"
    android:id="@+id/lunch"
    android:layout_width="0dip"
    android:layout_height="fill_parent"
    android:layout_weight="40"
  />
  <FrameLayout
    android:id="@+id/details"
    android:layout_width="0dip"
    android:layout_height="fill_parent"
    android:layout_weight="60"
  />
</LinearLayout>



//
//res\layout-land\detail_form.xml
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:stretchColumns="2"
  >
  <TableRow>
    <TextView android:text="Name:" />
    <EditText android:id="@+id/name"
      android:layout_span="2"
    />
  </TableRow>
  <TableRow>
    <TextView android:text="Address:" />
    <EditText android:id="@+id/addr"
      android:layout_span="2"
    />
  </TableRow>
  <TableRow>
    <TextView android:text="Type:" />
    <RadioGroup android:id="@+id/types">
      <RadioButton android:id="@+id/take_out"
        android:text="Take-Out"
      />
      <RadioButton android:id="@+id/sit_down"
        android:text="Sit-Down"
      />
      <RadioButton android:id="@+id/delivery"
        android:text="Delivery"
      />
    </RadioGroup>
    <LinearLayout android:orientation="vertical">
      <EditText android:id="@+id/notes"
        android:singleLine="false"
        android:gravity="top"
        android:lines="2"
        android:scrollHorizontally="false"
        android:maxLines="2"
        android:maxWidth="140sp"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:hint="Notes"
      />
      <EditText android:id="@+id/feed"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:hint="Feed URL"
      />
      <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        >
        <TextView android:text="Location:"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
        />
        <TextView android:id="@+id/location"
          android:text="(not set)"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
        />
      </LinearLayout>
    </LinearLayout>
  </TableRow>
</TableLayout>



//
//res\layout\alarm.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="It's time for lunch!"
  android:textSize="30sp"
  android:textStyle="bold"
/>



//res\layout\detail_activity.xml
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
  class="apt.tutorial.DetailFragment"
  android:id="@+id/details"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
/>



//res\layout\detail_form.xml
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:stretchColumns="1"
  >
  <TableRow>
    <TextView android:text="Name:" />
    <EditText android:id="@+id/name" />
  </TableRow>
  <TableRow>
    <TextView android:text="Address:" />
    <EditText android:id="@+id/addr" />
  </TableRow>
  <TableRow>
    <TextView android:text="Type:" />
    <RadioGroup android:id="@+id/types">
      <RadioButton android:id="@+id/take_out"
        android:text="Take-Out"
      />
      <RadioButton android:id="@+id/sit_down"
        android:text="Sit-Down"
      />
      <RadioButton android:id="@+id/delivery"
        android:text="Delivery"
      />
    </RadioGroup>
  </TableRow>
  <TableRow>
    <TextView android:text="Location:" />
    <TextView android:id="@+id/location" android:text="(not set)" />
  </TableRow>
  <EditText android:id="@+id/notes"
    android:singleLine="false"
    android:gravity="top"
    android:lines="2"
    android:scrollHorizontally="false"
    android:maxLines="2"
    android:maxWidth="200sp"
    android:layout_span="2"
    android:hint="Notes"
    android:layout_marginTop="4dip"
  />
  <EditText android:id="@+id/feed"
    android:layout_span="2"
    android:hint="Feed URL"
  />
</TableLayout>



//res\layout\main.xml
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
  class="apt.tutorial.LunchFragment"
  android:id="@+id/lunch"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
/>



//res\layout\map.xml
<?xml version="1.0" encoding="utf-8"?>
<com.google.android.maps.MapView
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/map"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:apiKey="00yHj0k7_7vxbuQ9zwyXI4bNMJrAjYrJ9KKHgbQ"
  android:clickable="true" />



//res\layout\row.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:orientation="horizontal"
  android:padding="4dip"
  >
  <ImageView android:id="@+id/icon"
    android:layout_width="wrap_content"
    android:layout_height="fill_parent"
    android:layout_alignParentTop="true"
    android:layout_alignParentBottom="true"
    android:layout_marginRight="4dip"
  />
  <LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    >  
    <TextView android:id="@+id/title"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:layout_weight="1"
      android:gravity="center_vertical"
      android:textStyle="bold"
      android:singleLine="true"
      android:ellipsize="end"
    />
    <TextView android:id="@+id/address"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:layout_weight="1"
      android:gravity="center_vertical"
      android:singleLine="true"
      android:ellipsize="end"
    />
  </LinearLayout>
</LinearLayout>



//res\layout\widget.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:background="@drawable/widget_frame"
>
  <TextView android:id="@+id/name"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerVertical="true"
    android:layout_alignParentLeft="true"
    android:layout_toLeftOf="@+id/next"
    android:textSize="10pt"
    android:textColor="#FFFFFFFF"
  />
  <ImageButton android:id="@id/next"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerVertical="true"
    android:layout_alignParentRight="true"
    android:src="@drawable/ff"
  />
</RelativeLayout>



//res\layout\widget_row.xml
<?xml version="1.0" encoding="utf-8"?>


<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/text1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:gravity="center_vertical"
    android:paddingLeft="6dip"
    android:minHeight="?android:attr/listPreferredItemHeight"
/>

Nested PreferenceScreen

   


package app.test;

import android.os.Bundle;
import android.preference.PreferenceActivity;

public class Test extends PreferenceActivity
{
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        addPreferencesFromResource(R.xml.main);
    }
}

//xml/main.xml



<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
  android:key="using_categories_in_root_screen"
  android:title="Categories"
  android:summary="Using Preference Categories">
  <PreferenceScreen
    android:key="meats_screen"
    android:title="Meats"
    android:summary="Preferences related to Meats">
    <CheckBoxPreference 
        android:key="fish_selection_pref"
      android:title="Fish" 
      android:summary="Fish is great for the healthy" />
    <CheckBoxPreference 
        android:key="chicken_selection_pref"
      android:title="Chicken" 
      android:summary="A common type of poultry" />
    <CheckBoxPreference 
        android:key="lamb_selection_pref"
      android:title="Lamb" 
      android:summary="Lamb is a young sheep" />
  </PreferenceScreen>
  <PreferenceScreen
    android:key="vegi_screen" 
    android:title="Vegetables"
    android:summary="Preferences related to vegetable">
    <CheckBoxPreference 
        android:key="tomato_selection_pref"
      android:title="Tomato" 
      android:summary="It's actually a fruit" />
    <CheckBoxPreference 
        android:key="potato_selection_pref"
      android:title="Potato" 
      android:summary="My favorite vegetable" />
  </PreferenceScreen>
</PreferenceScreen>

Get the size of Default Display Screen

   
package app.test;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.Typeface;
import android.os.Bundle;
import android.widget.ImageView;

public class Test extends Activity {
  ImageView drawingImageView;
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    drawingImageView = (ImageView) this.findViewById(R.id.DrawingImageView);
    Bitmap bitmap = Bitmap.createBitmap((int) getWindowManager()
        .getDefaultDisplay().getWidth(), (int) getWindowManager()
        .getDefaultDisplay().getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    drawingImageView.setImageBitmap(bitmap);

    Paint paint = new Paint();
    paint.setColor(Color.GREEN);
    paint.setTextSize(20);
    paint.setTypeface(Typeface.DEFAULT);
    Path p = new Path();
    p.moveTo(20, 20);
    p.lineTo(100, 150);
    p.lineTo(200, 220);
    canvas.drawTextOnPath("this is a test", p, 0, 0, paint);
  }
}

Screen Orientation

package app.test;

import android.app.Activity;
import android.app.admin.DevicePolicyManager;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.AdapterView.OnItemSelectedListener;

public class Test extends Activity {
    Spinner mOrientation;

    // Orientation spinner choices
    // This list must match the list found in samples/ApiDemos/res/values/arrays.xml
    final static int mOrientationValues[] = new int[] {
        ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED,
        ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE,
        ActivityInfo.SCREEN_ORIENTATION_PORTRAIT,
        ActivityInfo.SCREEN_ORIENTATION_USER,
        ActivityInfo.SCREEN_ORIENTATION_BEHIND,
        ActivityInfo.SCREEN_ORIENTATION_SENSOR,
        ActivityInfo.SCREEN_ORIENTATION_NOSENSOR,
        ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE,
        ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT,
        ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE,
        ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT,
        ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR,
    };
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        mOrientation = (Spinner)findViewById(R.id.orientation);
        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
                this, R.array.screen_orientations, android.R.layout.simple_spinner_item);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        mOrientation.setAdapter(adapter);
        mOrientation.setOnItemSelectedListener(
                new OnItemSelectedListener() {
                    public void onItemSelected(
                            AdapterView<?> parent, View view, int position, long id) {
                        setRequestedOrientation(mOrientationValues[position]);
                    }

                    public void onNothingSelected(AdapterView<?> parent) {
                        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
                    }
                });
    }
}
//main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:padding="4dip"
    android:gravity="center_horizontal"
    android:layout_width="match_parent" android:layout_height="match_parent">

    <TextView
        android:layout_width="match_parent" android:layout_height="wrap_content"
        android:layout_weight="0"
        android:paddingBottom="4dip"
        android:text="screen_orientation_summary"/>

    <Spinner android:id="@+id/orientation"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:drawSelectorOnTop="true"
        >
    </Spinner>
</LinearLayout>


//arrays.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <!-- Used in app/Screen Orientation -->
    <string-array name="screen_orientations">
        <item>UNSPECIFIED</item>
        <item>LANDSCAPE</item>
        <item>PORTRAIT</item>
        <item>USER</item>
        <item>BEHIND</item>
        <item>SENSOR</item>
        <item>NOSENSOR</item>
        <item>SENSOR_LANDSCAPE</item>
        <item>SENSOR_PORTRAIT</item>
        <item>REVERSE_LANDSCAPE</item>
        <item>REVERSE_PORTRAIT</item>
        <item>FULL_SENSOR</item>
    </string-array>
</resources>

Rows have different number of columns and content doesn't fit on screen: column 4 of row 2 shrinks all of the other columns

package com.example.android.apis.view;

import com.example.android.apis.R;

import android.app.Activity;
import android.os.Bundle;


public class TableLayout3 extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.table_layout_3);
    }
}
<?xml version="1.0" encoding="utf-8"?>


<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:shrinkColumns="2, 3">

    <TableRow>
        <TextView
            android:text="@string/table_layout_3_star"
            android:padding="3dip" />
        <TextView
            android:text="@string/table_layout_3_open"
            android:padding="3dip" />
        <TextView
            android:text="@string/table_layout_3_open_shortcut"
            android:padding="3dip" />
    </TableRow>

    <TableRow>
        <TextView
            android:text="@string/table_layout_3_triple_star"
            android:padding="3dip" />
        <TextView
            android:text="@string/table_layout_3_save"
            android:padding="3dip" />
        <TextView
            android:text="@string/table_layout_3_save_shortcut"
            android:padding="3dip" />
        <TextView
            android:text="@string/table_layout_3_too_long"
            android:padding="3dip" />
    </TableRow>

    <TableRow>
        <TextView
            android:text="@string/table_layout_3_star"
            android:padding="3dip" />
        <TextView
            android:text="@string/table_layout_3_quit"
            android:padding="3dip" />
        <TextView
            android:text="@string/table_layout_3_quit_shortcut"
            android:padding="3dip" />
    </TableRow>
</TableLayout>

Demonstrates the Tab scrolling when too many tabs are displayed to fit in the screen.

package com.example.android.apis.view;

import com.example.android.apis.R;

import android.app.TabActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TabHost;
import android.widget.TextView;

/**
 * Demonstrates the Tab scrolling when too many tabs are displayed to fit in the screen.
 */
public class Tabs5 extends TabActivity implements TabHost.TabContentFactory {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.tabs_scroll);

        final TabHost tabHost = getTabHost();

        for (int i=1; i <= 30; i++) {
            String name = "Tab " + i;
            tabHost.addTab(tabHost.newTabSpec(name)
                    .setIndicator(name)
                    .setContent(this));
        }
    }

    /** {@inheritDoc} */
    public View createTabContent(String tag) {
        final TextView tv = new TextView(this);
        tv.setText("Content for tab with tag " + tag);
        return tv;
    }
}


//layout/tabs_scroll.xml


<?xml version="1.0" encoding="utf-8"?>

<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/tabhost"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:padding="5dp">
        <HorizontalScrollView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:scrollbars="none">
            <TabWidget
                android:id="@android:id/tabs"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />
        </HorizontalScrollView>
        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:padding="5dp" />
    </LinearLayout>
</TabHost>

Using PreferenceScreen

   
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnClickListener;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceCategory;
import android.preference.PreferenceScreen;
import android.preference.Preference.OnPreferenceClickListener;

public class Preferences extends PreferenceActivity{
    
    private AlertDialog skinError;
    
    @Override
    protected void onStart() {
        super.onStart();
        
        PreferenceScreen root = getPreferenceManager().createPreferenceScreen(this);
        
        // List preference
        ListPreference listPref = new ListPreference(this);
        
        File f = new File("/sdcard/ADRINK");
        
        final List<String> skins = new ArrayList<String>();
        skins.add("Default");
        if(f.exists()){
            skins.addAll(Arrays.asList(f.list(null)));
        }
        
        PreferenceCategory dialogBasedPrefCat = new PreferenceCategory(this);
        dialogBasedPrefCat.setTitle("aDrink Settings");
        dialogBasedPrefCat.setOnPreferenceClickListener(new OnPreferenceClickListener(){

            @Override
            public boolean onPreferenceClick(Preference preference) {
                if("skin".equalsIgnoreCase(preference.getKey()) && skins.size() < 1){
                    skinError.show();
                }
                return false;
            }
            
        });
        root.addPreference(dialogBasedPrefCat);
        
        String[] names = new String[skins.size()];
        skins.toArray(names);
        listPref.setEntries(names);
        listPref.setEntryValues(names);
        listPref.setDialogTitle("Select a skin");
        listPref.setKey("skin");
        listPref.setTitle("Select a different texture skin");
        listPref.setSummary("You must download and put additional skins in your sdcard.");

        listPref.setDefaultValue("Default");
        
        // Toggle preference
        CheckBoxPreference gamePref = new CheckBoxPreference(this);
        gamePref.setKey("game");
        gamePref.setTitle("Enable drunk test game");
        gamePref.setSummary("Uncheck to disable the drunk test math game.");
        gamePref.setDefaultValue(true);
        
        
        dialogBasedPrefCat.addPreference(gamePref);
        dialogBasedPrefCat.addPreference(listPref);
        
        setPreferenceScreen(root);
    }
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        skinError = new AlertDialog.Builder(this)
        .setCancelable(false)
        .setTitle("No additional skins can be found, do you want to go to the download site?")
         .setPositiveButton("Ok", new OnClickListener(){

          @Override
          public void onClick(DialogInterface dialog, int which) {
            Intent i = new Intent("http://www.google.com");
            startActivity(i);
            finish();
          }
          
        })        
        .create();
    }
}

Splash Screen

import android.app.Activity;
import android.util.Log;
import android.view.KeyEvent;
import android.os.Bundle;
import android.content.Intent;
import android.view.MotionEvent;

public class AlmanacSplash extends Activity {
  /** Called when the activity is first created. */
  protected boolean m_bSplashActive = true;
  protected boolean m_bPaused = false;
  protected long m_dwSplashTime = 2000;

  @Override
  public void onCreate(Bundle icicle) {
    super.onCreate(icicle);

    // Very simple timer thread
    Thread splashTimer = new Thread() {
      public void run() {
        try {
          // Wait loop
          long ms = 0;
          while (m_bSplashActive && (ms < m_dwSplashTime)) {
            sleep(100);
            Log.d("OpenAlmanac:Debug", "While cicle "+ms);
            // Only advance the timer if we're running.
            if (!m_bPaused)
              ms += 100;
          }
          // Advance to the next screen.
          startActivity(new Intent(
              "com.google.app.splashy.CLEARSPLASH"));
          Log.d("Almanac:Debug",
              "Start: com.google.app.splashy.CLEARSPLASH");
        } catch (InterruptedException e) {
          // Thread exception
          // System.out.println(e.toString());
          Log.e("OpenAlmanac:Splash", e.toString());
        } finally {
          finish();
        }
      }
    };
    splashTimer.start();
  //  setContentView(R.layout.splash);
    return;
  }

  // If we're stopped, make sure the splash timer stops as well.
  protected void onStop() {
    super.onStop();
  }

  protected void onPause() {
    super.onPause();
    m_bPaused = true;
  }

  protected void onResume() {
    super.onResume();
    m_bPaused = false;
  }

  protected void onDestroy() {
    super.onDestroy();
  }
  
  //When you touch a key, clear the Splash Screen
  public boolean onKeyDown(int keyCode, KeyEvent event) {
    // if we get any key, clear the Splash Screen
    super.onKeyDown(keyCode, event);
    m_bSplashActive = false;
    return true;
  }
  
  //When you touch the screen, clear the Splash Screen
  public boolean onTouchEvent(MotionEvent event) {
        if (event.getAction() == MotionEvent.ACTION_DOWN) {
          m_bSplashActive = false;
        }
        return true;
    }
}

Get the optimal preview size for the given screen size.

   
//package edu.dhbw.andar.util;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.util.Iterator;
import java.util.List;

import android.hardware.Camera.Size;

public class GraphicsUtil {
  //private final static double epsilon = 0.001;
  //this epsilon being so large is intended, as often there will not be an adequate resolution with
  //the correct aspect ratio available
  //so we trade the correct aspect ratio for faster rendering
  private final static double epsilon = 0.17;
  
  /**
   * Make a direct NIO FloatBuffer from an array of floats
   * @param arr The array
   * @return The newly created FloatBuffer
   */
  public static FloatBuffer makeFloatBuffer(float[] arr) {
    ByteBuffer bb = ByteBuffer.allocateDirect(arr.length*4);
    bb.order(ByteOrder.nativeOrder());
    FloatBuffer fb = bb.asFloatBuffer();
    fb.put(arr);
    fb.position(0);
    return fb;
  }
  /**
   * Make a direct NIO ByteBuffer from an array of floats
   * @param arr The array
   * @return The newly created FloatBuffer
   */
  public static ByteBuffer makeByteBuffer(byte[] arr) {
    ByteBuffer bb = ByteBuffer.allocateDirect(arr.length);
    bb.order(ByteOrder.nativeOrder());
    bb.put(arr);
    bb.position(0);
    return bb;
  }
  public static ByteBuffer makeByteBuffer(int size) {
    ByteBuffer bb = ByteBuffer.allocateDirect(size);
    bb.position(0);
    return bb;
  }
  
  /**
   * Get the optimal preview size for the given screen size.
   * @param sizes
   * @param screenWidth
   * @param screenHeight
   * @return
   */
  public static Size getOptimalPreviewSize(List<Size> sizes, int screenWidth, int screenHeight) {
    double aspectRatio = ((double)screenWidth)/screenHeight;
    Size optimalSize = null;
    for (Iterator<Size> iterator = sizes.iterator(); iterator.hasNext();) {
      Size currSize =  iterator.next();
      double curAspectRatio = ((double)currSize.width)/currSize.height;
      //do the aspect ratios equal?
      if ( Math.abs( aspectRatio - curAspectRatio ) < epsilon ) {
        //they do
        if(optimalSize!=null) {
          //is the current size smaller than the one before
          if(optimalSize.height>currSize.height && optimalSize.width>currSize.width) {
            optimalSize = currSize;
          }
        } else {
          optimalSize = currSize;
        }
      }
    }
    if(optimalSize == null) {
      //did not find a size with the correct aspect ratio.. let's choose the smallest instead
      for (Iterator<Size> iterator = sizes.iterator(); iterator.hasNext();) {
        Size currSize =  iterator.next();
        if(optimalSize!=null) {
          //is the current size smaller than the one before
          if(optimalSize.height>currSize.height && optimalSize.width>currSize.width) {
            optimalSize = currSize;
          } else {
            optimalSize = currSize;
          }
        }else {
          optimalSize = currSize;
        }
        
      }
    }
    return optimalSize;
  }
  
  public static boolean containsSize(List<Size> sizes, Size size) {
    for (Iterator<Size> iterator = sizes.iterator(); iterator.hasNext();) {
      Size currSize =  iterator.next();
      if(currSize.width == size.width && currSize.height == size.height) {
        return true;
      }      
    }
    return false;
  }
  
  public static Size getSmallestSize(List<Size> sizes) {
    Size optimalSize = null;
    for (Iterator<Size> iterator = sizes.iterator(); iterator.hasNext();) {
      Size currSize =  iterator.next();    
      if(optimalSize == null) {
        optimalSize = currSize;
      } else if(optimalSize.height>currSize.height && optimalSize.width>currSize.width) {
        optimalSize = currSize;
      }
    }
    return optimalSize;
  }
  
}