Android Open Source - AerisAndroidLibrary Location Search Activity

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License

The source code is released under:
Apache License
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Java Source Code

package com.example.demoaerisproject;
//from w ww . j  av a2  s.  c  o  m
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.Toast;

import com.example.db.MyPlacesDb;
import com.example.demoaerisproject.AerisDialog.AerisDialogOKListener;
import com.example.edithelp.EditTextEnterListener;
import com.example.edithelp.EnterPressedDelegate;
import com.example.listview.PlacesAdapter;
import com.hamweather.aeris.communication.AerisProgressListener;
import com.hamweather.aeris.communication.loaders.PlacesTask;
import com.hamweather.aeris.communication.loaders.PlacesTaskCallback;
import com.hamweather.aeris.communication.parameter.ParameterBuilder;
import com.hamweather.aeris.communication.parameter.PlaceParameter;
import com.hamweather.aeris.communication.parameter.QueryParameter;
import com.hamweather.aeris.logging.Logger;
import com.hamweather.aeris.model.AerisError;
import com.hamweather.aeris.model.AerisLocation;
import com.hamweather.aeris.model.Place;
import com.hamweather.aeris.response.PlacesResponse;
import com.hamweather.aeris.util.ValidationUtil;

import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.List;

public class LocationSearchActivity extends Activity implements
    OnClickListener, TextWatcher, PlacesTaskCallback,
    AerisProgressListener, OnItemClickListener, AerisDialogOKListener,
    EnterPressedDelegate {

  private static final int PLACE_DIALOG = 1;
  private static final int TEXT_CHANGED_MSG = 1;
  private EditText searchEditText;
  private ImageButton searchButton;
  private PlacesAdapter searchAdapter;
  private ListView searchListView;
  private PlacesTask task;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
    requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
    this.setContentView(R.layout.activity_location_search);
    getActionBar().setDisplayHomeAsUpEnabled(true);
    searchEditText = (EditText) this.findViewById(R.id.etSearch);
    searchButton = (ImageButton) this.findViewById(R.id.ibSearch);
    searchButton.setOnClickListener(this);
    searchListView = (ListView) this.findViewById(R.id.lvSearch);
    searchEditText.addTextChangedListener(this);
    searchListView.setOnItemClickListener(this);
    searchEditText.setOnKeyListener(new EditTextEnterListener(this));
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.menu_search, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case R.id.menuLocateMe:
      if (task != null) {
        task.cancel(true);
      }
      task = new PlacesTask(this, this);
      task.withDebug(true);
      task.withProgress(this);
      ParameterBuilder builder = new ParameterBuilder().withLimit(25)
          .withRadius("50mi");
      task.requestClosest(new PlaceParameter(this), builder.build());
      InputMethodManager imm = (InputMethodManager) this
          .getSystemService(Context.INPUT_METHOD_SERVICE);
      imm.hideSoftInputFromWindow(searchEditText.getWindowToken(), 0);
      return true;
    case R.id.menuMyLocs:
      startActivity(new Intent(this, MyLocsActivity.class));
      return true;
    case android.R.id.home:
      super.onBackPressed();
      return true;
    }
    return super.onOptionsItemSelected(item);
  }

  @Override
  public void onClick(View v) {

  }

  @Override
  public void beforeTextChanged(CharSequence s, int start, int count,
      int after) {
  }

  @Override
  public void onTextChanged(CharSequence s, int start, int before, int count) {
    typeHandler.removeMessages(TEXT_CHANGED_MSG);
    if (s.length() > 2) {
      typeHandler
          .sendMessageDelayed(
              Message.obtain(typeHandler, TEXT_CHANGED_MSG,
                  s.toString()), 800);
    } else {
      if (searchAdapter != null) {
        searchAdapter.setList(new ArrayList<PlacesResponse>());
        searchAdapter.notifyDataSetChanged();
      }
    }
  }

  @Override
  public void afterTextChanged(Editable s) {
  }

  private void performPlaceSearch(String text) {
    if (task != null) {
      task.cancel(true);
    }
    task = new PlacesTask(this, this);
    task.withDebug(true);
    task.withProgress(this);
    text = text.trim();
    ParameterBuilder builder = new ParameterBuilder();
    if (ValidationUtil.isValidCoordinate(text)) {
      String[] temp = text.split(",");
      try {
        double latitude = Double.parseDouble(temp[0]);
        double longitude = Double.parseDouble(temp[1]);
        builder.withRadius("50mi");
        task.requestClosest(new PlaceParameter(latitude, longitude),
            builder.build());
      } catch (NumberFormatException ex) {
        Toast.makeText(this, "Places search based on lat/lng failed!",
            Toast.LENGTH_SHORT).show();
        return;
      }

    } else if (ValidationUtil.isValidZipcode(text)) {
      task.requestSearch(new QueryParameter("zipcode:" + text));
    } else if (!ValidationUtil.isNumber(text)
        && ValidationUtil.isValidPlaceString(text)) {
      String temp[] = text.split(",");
      builder.withLimit(50).withFilter("cities").withSort("pop:-1");
      if (temp.length == 1) {
        builder.withQuery("name:^" + text.toLowerCase());
        task.requestSearch(builder.build());
      } else {
        String name = temp[0].trim();
        String state = null;
        if (temp.length > 1) {
          state = temp[1].trim().toLowerCase();
          if (state.length() == 1) {
            state = "^" + state;
          }
        }
        String country = null;
        if (temp.length > 2) {
          country = temp[2].trim().toLowerCase();
          if (country.length() == 1) {
            country = "^" + country;
          }
        }
        StringBuilder queryBuilder = new StringBuilder("name:");
        queryBuilder.append(name);
        if (state != null) {
          queryBuilder.append(",");
          queryBuilder.append("state:");
          queryBuilder.append(state);
        }
        if (country != null) {
          queryBuilder.append(",");
          queryBuilder.append("country:");
          queryBuilder.append(country);
        }
        builder.withQuery(queryBuilder.toString());
        task.requestSearch(builder.build());
      }

    } else {
      Logger.i("TEST", "Failed validation");
      return;
    }

  }

  @Override
  public void onPlacesFailed(AerisError error) {
    Logger.i("TEST", error.description);
  }

  @Override
  public void onPlacesLoaded(List<PlacesResponse> responses) {
    searchAdapter = new PlacesAdapter(responses, this);
    searchListView.setAdapter(searchAdapter);
  }

  private TypeHandlingListener typeHandler = new TypeHandlingListener(this);

  private static class TypeHandlingListener extends Handler {

    private final WeakReference<LocationSearchActivity> target;

    TypeHandlingListener(LocationSearchActivity activity) {
      target = new WeakReference<LocationSearchActivity>(activity);
    }

    @Override
    public void handleMessage(Message msg) {
      super.handleMessage(msg);
      LocationSearchActivity activity = target.get();
      if (activity != null) {
        activity.performPlaceSearch((String) msg.obj);
      }
    }
  }

  @Override
  public void hideProgress() {
    if (this != null)
      setProgressBarIndeterminateVisibility(false);
  }

  @Override
  public void showProgress() {
    if (this != null)
      setProgressBarIndeterminateVisibility(true);
  }

  @Override
  public void onItemClick(AdapterView<?> parent, View view, int position,
      long id) {
    PlacesResponse place = searchAdapter.getItem(position);
    AerisDialog dialog = new AerisDialog();
    dialog.withListener(this)
        .withMessage("Would you like to add this as your locations?")
        .withObject(place).withType(PLACE_DIALOG);
    dialog.show(getFragmentManager(), "myloc");

  }

  @Override
  public void onOKPressed(int type, Object object) {
    if (type == PLACE_DIALOG) {
      PlacesResponse response = (PlacesResponse) object;
      Place place = response.getPlace();
      AerisLocation loc = response.getLocation();
      if (place != null) {
        MyPlacesDb db = new MyPlacesDb(this);
        db.insertPlaces(place.name, place.state,
            place.country, loc.lat, loc.lon, true);
        db.close();
      }

    }
  }

  @Override
  public void onEnterPressed(int viewId, EditText edit) {
    typeHandler.removeMessages(TEXT_CHANGED_MSG);
    performPlaceSearch(edit.getEditableText().toString());
  }

}
Java Source Code List
